EMERSON EC3-XM678D CONTROLLERS FOR MULTIPLEXED CABINETS Installation Guide

Table of Contents

EC3-XM678D CONTROLLERS FOR MULTIPLEXED CABINETS

CONTROLLERS FOR MULTIPLEXED CABINETSEC3-XM678DREL. 5.4

The same recommendations apply to probes. Let air circulate by the cooling holes.

1. GENERAL WARNING

1.1

PLEASE READ BEFORE USING THIS MANUAL

· This manual is part of the product and should be kept near the instrument for easy and quick reference.· The instrument shall not be used for purposes different from those described hereunder. It cannot be used as a safety device.· Check the application limits before proceeding.· Emerson reserves the right to change the composition of its products, even without notice, ensuring the same and unchanged functionality.

1.2

SAFETY PRECAUTIONS

· Check the supply voltage is correct before connecting the instrument. · Do not expose to water or moisture: use the controller only within the operatinglimits avoiding sudden temperature changes with high atmospheric humidity to prevent formation of condensation · Warning: disconnect all electrical connections before any kind of maintenance.· Fit the probe where it is not accessible by the End User. The instrument must not be opened.· In case of failure or faulty operation send the instrument back to the distributor or to Emerson (see address) with a detailed description of the fault.· Consider the maximum current which can be applied to each relay (see Technical Data).· Ensure that the wires for probes, loads and the power supply are separated and far enough from each other, without crossing or intertwining.· In case of applications in industrial environments, the use of mains filters (our mod. FT1) in parallel with inductive loads could be useful.

2. BEFORE PROCEEDING

2.1 CHECK THE SW REL. OF THE EC3-XM678D 1. Look at the SW rel. of EC3-XM678D printed on the label of the controller.

Figure 1c5. WIRING DIAGRAM AND CONNECTIONS5.1 IMPORTANT NOTEXM device is provided with disconnectable terminal block to connect cables with a cross section up to 1.6 mm2 for all the low voltage connection: the RS485, the LAN, the probes, the digital inputs and the keyboard. Other inputs, power supply and relay connections are provided with screw terminal block or fast-on connection (5.0 mm). Heat-resistant cables have to be used. Before connecting cables make sure the power supply complies with the instrument’s requirements. Separate the probe cables from the power supply cables, from the outputs and the power connections. Do not exceed the maximum current allowed on each relay, in case of heavier loads use a suitable external relay. Note: Maximum current allowed for all the loads is 16 A. The probes shall be mounted with the bulb upwards to prevent damages due to casual liquid infiltration. It is recommended to place the thermostat probe away from air streams to correctly measure the average room temperature. Place the defrost termination probe among the evaporator fins in the coldest place, where most ice is formed, far from heaters or from the warmest place during defrost, to prevent premature defrost termination.5.2 EC3-XM678D

2. If the SW release is 5.4 proceed with this manual otherwise contact Emerson to get the right manual.3. GENERAL DESCRIPTIONThe EC3-XM678D are high level microprocessor-based controllers for multiplexed cabinets suitable for applications on medium or low temperature. They can be inserted in a LAN of up to 8 different sections which can operate, depending on the programming, as standalone controllers or following the commands coming from the other sections. The EC3-XM678D are provided with 4 and 6 relay outputs respectively to control the solenoid valve, defrost – which can be either electrical or hot gas – the evaporator fans, the lights, an auxiliary output and an alarm output and with one output to drive stepper electronic expansion valves. The devices are also provided with four probe inputs, one for temperature control, one to control the defrost end temperature of the evaporator, the third for the display and the fourth can be used for application with virtual probe or for inlet/outlet air temperature measurement. In addition, they are provided by other two probes that have to be used for superheat measurement and regulation. Finally, they are equipped with the three digital inputs (free contact) fully configurable by parameters. The instruments are equipped with the HOTKEY connector that permits to be programmed in a simple way. Direct serial output RS485 ModBUS-RTU compatible permits a simple XWEB interfacing. RTC are available as options. The HOTKEY connector can be used to connect X-REP display (Depending on the model).4. INSTALLATION AND MOUNTINGThis device can operate without any user interface, but normal application is with Emerson CH660 keyboard.

Figure 1a

Figure 1b

The CH660 keyboard shall be mounted on vertical panel, in a 29 x 71 mm hole, and fixed using the special bracket supplied as shown in Fig. 1a/1b. The temperature range allowed for correct operation is 0 – 60°C. Avoid places subject to strong vibrations, corrosive gases, excessive dirt or humidity.

5.3 VALVE CONNECTIONS AND CONFIGURATION5.3.1 Valve connections !!! All the connections between EC3-XM678D and valve has to be done with the controller NOT supplied.!!!

5.3.2 Type of cables and max length To connect the valve to the controller, use only shielded cables with section greater than or equal to 0.823 mm² (AWG18). A twisted shielded cable with the above specification is suggested. Don’t connect the shield to any ground, live it floating.The max distance between an XM controller and a valve must not exceed 10 m.

5.3.3 Valve selection To avoid possible problems, before connecting the valve configure the driver by making the right changes on the parameters. a. Select the kind of motor (tEU parameter) b. Check if the valve is present in tEP parameter table reported here below.CHECK THE FOLLOWING TABLE FOR A RIGHT SETTING

!!! In any case, the unique and valid reference has to be considered the datasheet made by valve manufacturer. Emerson cannot be considered responsible in case of valve damaging due to wrong settings!!!

tEP

Model

LSt

uSt

CPP

(steps*10)(steps*10) (mA*10)

Manual settings

Par

Danfoss ETS25/50

262

Danfoss ETS100

353

Danfoss ETS250/400

381

Emerson EX4/EX5/EX6

CHd (mA*10)Par10101010

Sr (step/s)Par300300300500

tEu (bip/ unip) ParbPbPbPbP

HSF (Half/full)ParFULFULFULFUL

If you can see your valve on the table, please select the valve through tEP parameter. In this way, you can be sure of a right configuration. About the connection, please pay attention to the following table to have a quick reference on the connection mode for valves of different manufacturer

4 WIRES VALVES (BIPOLAR) Connection numbering 45 46 47 48

ALCO EX4/5/6/7/8BLUE BROWN BLACK WHITE

DANFOSS ETSBLACK WHITERED GREEN

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5-6 WIRES VALVES (UNIPOLAR) Connection numbering 45 46 47 48 49 Common

SPORLANORANGE REDYELLOW BLACK GRAY

SAGINOMIYAORANGE REDYELLOW BLACK GRAY

1. After selecting the valve, please switch off and on the controller to load the new settings.2. Switch off the controller, before connecting the valve. Do the connection with controller off.3. Switch the controller on

5.4 ABSOLUTE MAXIMUM POWER

EC3-XM678D is able to drive a wide range of stepper valves, on the following table are indicated the maximum values of current that the actuator can supply to the stepper wiring. The TF20D Emerson transformer has to be used.

NOTE:

The electrical power absorption of the valve can be unrelated to refrigeration power that valve has. Before using the actuator, please read the technical manual of the valve supplied by the manufacturer and check the maximum current used to drive the valve in order to verify that they are lower than those indicated below.

VALV E

BIPOLAR VALVES (4 wires)UNIPOLAR VALVES (5-6 wires)

Maximum Current 0.5 A Maximum Current 0.33 A

5.5 KEYBOARD DISPLAY CH660

Polarity: Terminal [34] [-] Terminal [35] [+]

The EC3-XM678D board can operate also without keyboard.

Use twisted shielded cable AWG 18 or less in case of long distance. Max distance: 30 m

5.6 LAN CONNECTIONFollow next steps to create a LAN connection, which is a necessary condition to perform synchronized defrost (also called master-slave functioning):1) connect a shielded cable between terminals [38] [-] and [39] [+] for a maximum of 8 sections;2) the Adr parameter is the number to identify each electronic board. Address duplication is not permitted, in this case the synchronized defrost and the communication with monitoring system is not guaranteed (the Adr is also the ModBUS address). For example, a correct configuration is the following:

If the LAN is well connected, the green LED will be ON. If the green LED blinks then the connection is wrongly configured. The max distance allowed is 30 m 5.7 SENSORS FOR SUPERHEAT CONTROLTemperature probe: Pb6 terminals [19] – [20] without any polarity. Select the kind of sensor with P6C parameter. Pressure transducer: Pb5 terminals: [21] = input of the signal; [22] = Power Supply for 4 20 mA transducer; [20] = GND; [23] = +5 VDC power supply for ratiometric pressure transducer. Select the configuration of the transducer with parameter P5C. 5.8 HOW TO USE ONLY ONE PRESSURE TRANSDUCER ON MULTIPLEXED APPLICATIONSA working LAN connection is required (green LED lit on all EC3-XM678D boards of the same LAN). Connect and configure a pressure transducer only on one EC3XM678D of the network. Afterwards, the value of pressure read by the unique transducer connected will be available to each device connected to the same LAN.

By pressing UP ARROW button, the user will be able to enter a fast selection menu and to read the value of the following parameters:

dPP = measured pressure (only on master device). dP5 = value of temperature obtained from pressure temperature conversion. rPP = pressure value read from remote location (only for slave devices).

Examples of error messages: dPP = Err the local transducer read a wrong value, the pressure is out of thebounds of the pressure transducer or the P5C parameter is wrong. Check all these options and eventually change the transducer;rPF the remote pressure transducer is on error situation. Check the status of the onboard GREEN LED: if this LED is OFF the LAN is not working, otherwise check the remote transducer.

LAST CHECKS ABOUT SUPERHEAT

On the fast access menu:

dPP is the value read by the pressure gauge.

dP6 is the value read by the temperature probe, temperature of the gas on

the outlet section of the evaporator.

is the value of the superheat. The nA or Err messages mean that the

superheat has no sense in that moment and its value is not available.

5.9 HOW TO CONNECT MONITORING SYSTEM

1) Terminals [36] [-] and [37] [+]. 2) Use shielded twisted cable. Forexample Belden® 8762 o 8772 or cat 5 cables. 3) Maximum distance 1 Km. 4) Don’t connect the shield to the earth or to GND terminals of the device, avoid accidental contacts by using insulating tape.

Only one device for each LAN has to be connected to the RS485 connection.

The Adr parameter is the number to identify each electronic board. Address duplication is not permitted, in this case the synchronized defrost and the communication with monitoring system is not guaranteed (the Adr is also the ModBUS address).5.10 DIGITAL INPUTS

1) The terminals from [30] to [33] are all free of voltage; 2) Use shielded cable for distance higher than onemeter; For each input, has to be configured: the polarity of activation, the function of the input and the delay of signaling.

The parameters to perform this configuration are i1P, i1F, i1d respectively for

polarity, functioning and delay.

The i1P can be:

cL = active when closed;

oP = active when opened.

The i1F can be:

EAL = external alarm,

bAL = serious lock alarm,

PAL = pressure switch alarm,

dor = door switch,

dEF = external defrost,

AUS = auxiliary activation command,

LiG = light activation,

OnF = board On/OFF,

FHU = don’t use this configuration, ES = day/night,

HdY = don’t use this configuration.

Then there is i1d parameter for delay of activation.

For the others digital inputs there are a set of the same parameters: i2P, i2F, i2d,

i3P, i3F, i3d.

5.11 ANALOG OUTPUT

– Selectable between 4 20 mA and 0 10 VDC. – Use CABCJ15 to perform the connections

It’s located near the terminal [39] on a 2-pin connector. It’s possible to use the output to control anti-sweat heaters through a chopped phase controller XRPW500 (500 W) or family XV…D or XV…K.

6. QUICK REFERENCE GUIDE: HOW TO RUN THE SELF ADAPTIVE REGULATION IN 4 STEPS.

1. After wiring the EC3-XM678D, set the proper gas via Fty parameter 2. Set the proper gas via Fty parameter, among the following

CODE REFRIGERANT OPERATING RANGE

r22

R22

-50 – 60°C/-58 – 120°F

134

R134A

-50 -60°C/-58 – 120°F

290

R290 Propane -50 – 60°C/-58 – 120°F

404

R404A

-70 – 60°C/-94 – 120°F

47A

R407A

-50 – 60°C/-58 – 120°F

47C

R407C

-50 – 60°C/-58 – 120°F

47F

R407F

-50 – 60°C/-58 – 120°F

410

R410A

-50 – 60°C/-58 – 120°F

448

R448A

-45 – 60°C/-69 – 120°F

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CODE REFRIGERANT

449

R449A

450

R450A

507

R507

513

R513A

CO2

R744 – Co2

Pre-set refrigerant is R448A.

OPERATING RANGE-45 – 60°C/-69 – 120°F -45 – 60°C/-69 – 120°F -70 – 60°C/-94 – 120°F -45 – 60°C/-69 – 120°F -50 – 60°C/-58 – 120°F

3. Configure the probes: – Regulation and evaporator probe are preset as NTC. If another kind of sensors is used, set it via P1c and P2c parameters. – Superheat evaporator outlet probe is pre-set as Pt1000, if another kind of sensor is used, set it via P6c parameter. – The PP11 (-0.5 11 bar) is pre-set as pressure probe. It operates at relative pressure (Pru = rE). If you’re using a ratiometric transducer, set P5c = 0 – 5, then use parameters PA4 and P20 to set the range NOTE: Check the pressure gauge reading with the value of dPP, press the UP arrow once to enter the Fast Access Menu. If ok, proceed; otherwise solve the situation before proceeding acting on par. Pru, PA4 and P20.

4. Set the parameters for self-adaptive regulation of superheat NOTE: The parameters Pb (regulation band) and Int (integral time) are automatically calculated by the controller

– Set CrE = no, this disables the continuous regulation of the temperature. Default is CrE = no.– Set SSH, superheating setpoint: a value between 4 – 8 is acceptable. Default is SSH = 6– Set ATU = y to start the self-adaptive regulation. Default is ATU = y. – Set AMS = y to start the search of the lowest stable superheat. Defaultis AMS = n. This function reduces automatically the setpoint in order to optimize the use of the evaporator, keeping, at the same time, the superheating regulation stable. The minimum allowed SH set point is LSH+2°C. – Set LSH, low superheating limit: a value between 2 – 4 is acceptable. Default is LSH = 2 – Set AnP, pressure filter: Default is AnP = 3. The value can be increased up to 10 in case of too fast response of the pressure variations.

5. Set the parameters for the temperature regulation – Set the temperature setpoint. Default is 2°C – Set the differential HY: Default is 2°C. – If the capacity of the valve is higher than requested, it can be reduced by the par. MnF (Default is 100). A proper setting of MnF will reduce the time that the algorithm takes to reach the stability. MnF value doesn’t affect the band width.

7. BATTERY BACK UP CONNECTION

7.1 CONNECTION OF EXD-PM SUPERCAP

EXD-PM Supercap is designed to be used with Emerson products (EC3-XM678D, EXD-SH1/2);

!!!!! IMPORTANT !!!!! EXD-PM Supercap and EC3-XM678D must be powered by two different transformers; the failure of the observance of this rule may result in damage to the EXD-PM Supercap and / or the connected EC3-XM678D.

Wiring connection EC3-XM678D Terminal 61 (+) Terminal 62 (-)

EXD-PM Terminal 4 (12 VDC)Terminal 3 (gnd)

7.2 EMERSON ECP-024 CONNECTION

The Emerson ECP-024 rechargeable accumulator can be connected to the EC3XM678D to close the stepper valve in case of power interruption.

Wiring connection EC3-XM678D Terminal 61 (+) Terminal 62 (-)

ECP-024 Terminal + Terminal –

About conditions of use and limitation please refer to the ECP-024 manuals.

8. USER INTERFACE

8.1 ICONS

Light

Cooling output

Fan

With icon ON the output is active, while with blinking icon there is a delay.

DefrostEnergy savingGeneric alarm

AUX Auxiliary relay Multimaster Enabled Clock / time

MEASUREMENT UNIT°C, bar and (time) are ON depending on the selection.

DURING PROGRAMMING: blink the measurement units of temperature and pressure

8.2 KEYBOARD COMMANDS

Single commands: LIGHT relay AUX relay Manual defrost ON/OFF Energy Saving

Press light button. Press down arrow. Press and hold for 3 s the defrost button Press for 3 s the ON/OFF button (if the function is enabled). Press for 3 s the ON/OFF button (if the function is enabled).

Double commands:

Press and hold for about 3 s to lock (Pon) or unlock (PoF) the keyboard.

Pressed together to exit from programming mode or from menu; on submenus rtC and EEV this combination allow to come back to previous level.

Pressed together for 3 s allow to access to first level of programming mode.

8.3 HOW TO MODIFY THE SET POINT FOR AIR TEMPERATURE REGULATIONThe thermostat set point is the value that will be used to regulate the air temperature. The regulation output is controlled by the electronic valve or by the relay.

Action BEGIN

Button or display

NotesPress SET button for 3 s, the measurement units will blink together.

Value modification

With the arrows it’s possible to change the value within the LS and US parameters value.

EXIT

By pressing SET it is possible to confirm the value that will blink for about 2 s.

In any case, it is possible to wait for about 10 seconds to exit. In order to show the air temperature set is sufficient to press and release the SET button, the value is displayed for about 60 sec.KEY COMBINATIONS.

9. HOW TO PROGRAM THE PARAMETERS (PR1 AND PR2)The device provide 2 programming levels: Pr1 with direct access and Pr2 protected with a password (intended for experts).

ActionACCESS to Pr1

Button or display

NotesPress and hold for about 3 seconds to have access to the first programming level (Pr1).

Select item

Select the parameter or submenu using the arrows.

Show value

Press SET button.

ModifyConfirm and storeEXIT

Use the arrows to modify the value.

Press SET key: the value will blink for 3 seconds, and then the display will show the next parameter.Instantaneous exit from the programming mode, otherwise wait for about 10 seconds (without press any button).

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9.1 HOW TO HAVE ACCESS TO “PR2”To enter Pr2 programming menu: 1. Access to a Pr1 menu by pressing both SET+DOWN keys for 3 seconds, the first parameter label will be showed; 2. Press DOWN key till the Pr2 label will be showed, then press SET; 3. The blinking PAS label will be showed, wait some seconds; 4. Will be showed “0 – -” with blinking 0: insert the password [321] using the keys UP and DOWN and confirming with SET key.GENERAL STRUCTURE: The first two item rtC and EEV are related to submenus with other parameters.

ActionEnter menuWaiting for action Enter section list

Button or displaySEC

NotesPress UP arrow for about 3 s, the icon will be ON. The menu to change the section will be entered. SEC label will be displayed. Press SET to confirm. The following list will be available to select the proper network function.

Select proper function

LOC GLb

To gain access only to the local device. To share global commands to all the devices connected to the LAN.

· SET+UP keys on rtC or EEV submenus allow coming back to parameter list, · SET+UP keys on parameter list allow immediate exit.9.2 HOW TO MOVE PARAMETER FROM PR1 TO PR2 AND VICE VERSAEnter on Pr2; select the parameter; press together [SET + DOWN]; a left side LED ON gives to the parameter the presence on Pr1 level, a left side LED OFF means that the parameter is not present on Pr1 (only Pr2).

10. FAST ACCESS MENUThis menu contains the list of probes and some values that are automatically evacuate by the board such as the superheat and the percentage of valve opening. The values: nP or noP stands for probe not present or value not evacuate, Err value out of range, probe damaged not connected or incorrectly configured.

Action Enteringfast access menuUseorarrows to select anentry, then pressto see the value or to go on withother value.Exit

Button or display NotesBy press and release the UP arrow. The duration of the menu in case of inactivity is about 3 min. The values that will be showed depend on the configuration of the board. MAP Current map (0÷3): it shows which map is used. HM Access to clock menu or reset of the RTC alarm; An Value of analog output; SH Value of superheat. nA = not Available; oPP Percentage of valve opening. dP1 (Pb1) Value read by probe 1. dP2 (Pb2) Value read by probe 2. dP3 (Pb3) Value read by probe 3. dp4 (Pb4) Value read by probe 4. dP5 (Pb5) Temperature read by probe 5 or value obtained from pressure transducer. dP6 (Pb6) Value read by probe 6. dPP Pressure value read by (Pb5) transducer. rPP Virtual pressure probe, only on slave. rCP Value of P4 remote probe for heaters. It is displayed only with P4C = LAn. If the value is not available “noP” label is displayed. dPr Regulation probe value rSE Real thermoregulation set point: the value includes the sum of SET, HES and/or the dynamic set point if the functions are enabled. L°t Minimum room temperature; H°t Maximum room temperature; tMd Time to next defrost (mins) LSn Number of devices in the LAN LAn Address list of devices in the LAN GAL To see all the active alarms in each device connected to the LAN Pressed together or wait the timeout of about60 sec

11. MENU FOR MULTIMASTER FUNCTION: SEC

The function “section” SEC is enabled when icon

is lit. It allows share the

commands, from a keyboard not physically connected to the board, through the

LAN functionality.

Confirm

Select and confirm an entry by pressing SET button.

Exit menu

Press SET and UP together or wait about 10 seconds.

(*) The devices on the LAN are indexed by using the Adr parameter (in ascending

order).

EXAMPLE: To send a command to in all the devices connected to the LAN: enter multimaster menu. Select and confirm GLb. Exit from multimaster menu. Enter the programming menu and set the parameter of global commands (from LMd to ACE). The new setting will be shared among the controllers connected to the LAN.

AT THE END OF THE PROGRAMMING PROCEDURE, SELECT THESECTION “LOC”. IN THIS WAY THE ICON WILL BE SWITCHED OFF!!!11.1 SYNCHRONIZED DEFROSTThe synchronized defrost allow to manage multiple defrost from different boards connected through the LAN connection. In this way, the boards can perform simultaneous defrosts with the possibility to end them in a synchronized way.

The Adr parameter cannot be duplicated because in this case the defrost cannot be correctly managed.

Action BEGINFind Adr ModifyAdrEXIT

Button or displayor

NotesPress for 3 seconds, the rtC or other will be showed. The measurement unit blinks. Press more than once the DOWN arrow to find the Adr parameter, the press SET.Set the value of Adr parameter, then press SET to confirm the parameter. Press the two keys together to exit from menu or wait for about 10 seconds.

The LSn and LAn parameter are only to show the actual settings (read only). The following example of configuration:

DAILY DEFROST FROM RTC: [cPb = y] & [EdF = rtC]IdF Parameter: for safety reason force the value of Idf at +1 respect to the interval between two Ld parameters. The IdF timer is reinitialized after defrost and at every power-on.DEFROST START: at the time selected by the parameters Ld1 to Ld6 or Sd1 to Sd6.DEFROST END: if the probes reach the dtE temperature or for maximum MdF time.SAFETY and RtC or RtF ALARM: with clock alarm the device will use the parameter IdF, dtE and MdF.!!! WARNING: Don’t set [EdF = rtC] and [CPb = n].!!!MULTIMASTER DEFROST: all the probes with clock Table for example

Par.Adr EdF IdF MdF dtE Ld1 Ld2 Ld3

Unit A (RTC)n rtC (clock) 9 hours safety 45 min safety 12°C safety 06:00 1° 14:00 2° 22:00 3°

Unit B (RTC)N + 1 rtC (clock) 9 hours safety 45 min safety 12°C safety 06:00 1° 14:00 2° 22:00 3°

Unit C (RTC)N + 2 rtC (clock) 9 hours safety 45 min safety 12°C safety 06:00 1° 14:00 2° 22:00 3°

12. COMMISSIONING

12.1 CLOCK SETTING AND RTC ALARM RESET

If the clock is present: [EdF = rtC] enable the defrost from rtc [Ld1 – Ld6].

Action BEGIN

Button or display

NotesUP arrow (press once) to access the fast access menu

Display HM identify the clock RTC submenu; press

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DisplayEXIT Note: Warning:

HUr = hour press

to confirm/modify

Min = minutes press

to confirm/modify

…… don’t use others parameters if present.

Press for about 10 seconds. The operation resets

the RTC alarm.

The rtC clock menu is present also on the second level of parameters. If the board shows the rtF alarm, the device has to be changed.!!!

13.5 VALVE CAPACITY REDUCING MNF PARAMETERThanks to the parameter MnF it’s possible to reduce the capacity of the valve, to fine tune the valve to the evaporator. The regulation band is not affected from the modification of the MnF parameter. See below the behaviour of the capacity of the valve, when the MnF parameter is adjusted.

12.2

ELECTRONIC VALVE SETTINGS

Some parameters have to be checked: [1] Superheat temperature probe: Ntc, Ptc, Pt1000 with parameter P6C. Thesensor has to be fixed at the end of the evaporator. [2] Pressure transducer: [4 20 mA] or ratiometric P5C = 420 or 5Vr withparameter P5C. [3] Range of measurement: check the parameter of conversion PA4 and P20that are related to the transducer. TRANSDUCER: [-0.5/7 bar] or [0.5/8 bar abs] the correct setup is relative pressure with PA4 = -0.5 and P20 = 7.0. The [0.5/12 bar abs] the correct setup is relative pressure with PA4 = -0.5 and P20 = 11.00.

Example of virtual pressure with unique [4 20 mA] or [0 5 V] transducer:

Param. Adr

EC3-XM678D_1 without transducern

EC3-XM678D_2 + with transducern + 1

EC3-XM678D_3+ without transducern + 2

LPP

LPP = n

LPP = Y

LPP = n

P5C

LAN or not connect P5C= 4-20 mA or 0-

LAN or not

the probe

5 V

connect the probe

PA4

Not used

-0.5 bar

Not used

P20

Not used

11.0 bar

Not used

[4] From EEV submenu: select the correct kind of gas with FTY parameter. [5] Use the following parameters to setup the right valve driving, according to the valve datasheet from the manufacturer.

13.

KIND OF REGULATION FOR SUPERHEAT: SELF

ADAPTIVE OR MANUAL OPERATING MODE

13.1 GENERAL CONSIDERATIONS: SELF ADAPTIVE OR MANUAL SH CONTROLThe controller is able to regulate the superheat in manual or self-adaptive mode, according to the value of the parameter ATU, autotuing enabling.· With ATU = n: the manual SH regulation is performed · With ATU = y: the self-adaptive SH regulation is performed

13.2 MANUAL OPERATING MODE – ATU = NOThe temperature and SH regulation can be performed in 2 ways according to the value of the parameter CrE: on/off or continuous. See below in details Standard temperature regulation

13.2.1 ON/OFF TEMPERATURE REGULATION [CrE = n] 1. Temperature regulation is ON/OFF and it depends on the SET point and HYparameter (differential) Valve is closed when the temperature reaches the set point and open when the temperature is higher than set point + differential. 2. The superheat is regulated to be closer to its set point. 3. With more pauses normally also the humidity is bigger. 4. Regulation pauses can be realized using Sti and Std parameters (during these pauses the valve is closed).

13.2.2 COUNTINUOUS REGULATION OF THE TEMPERATURE [CrE = Y] (with superheat regulation): 1. The HY parameter becomes temperature band for PI control. A default goodvalue is 10°K. 2. The regulation of injection is continuous and the cooling output is always on.

The icon

is always ON excluding the defrost phase.

3. The superheat is regulated following the SSH parameter. 4. Regulation pauses can be realized using Sti and Std parameters (duringthese pauses the valve is closed). 5. Increasing the Int integral time it is possible to decrease the speed of reactionof the regulator on the HY band.

13.3 SELF ADAPTIVE OPERATING MODE ATU = YESAuto-adaptive means to find and maintain the condition of the lowest super heating according to the load and environmental conditions present in a given time on the evaporator. The parameter ATU enables the self-adaptive mode for the superheat regulation. In this functioning the values of Pb and inC parameter are automatically set by the controller according to the kind of applications and the response of the system.

With the ATU = YES, CrE must be set at NO.The self-adaptive algorithm does not affect, the functions related to the forced opening of the valve in special situation such as:· Forced opening of the valve at start of regulation, parameter SFP (percentage) and SFd (time).· Forced opening of the valve after defrost, parameter oPd (percentage) and Pdd (time).

13.4 MINIMUM STABLE SUPERHEAT SEARCH – AMS = YES, AMS = YESWith the parameter AMS, the minimum stable superheat search function is enabled.With AMS = yES controllers start searching the minimum stable value for the SH, the minimum admitted value in any case is LSH + 2°C (4°F).Please take it in consideration, before setting LSH value.

NOTE: During the soft start phase (oPE, SFd), MnF parameter is not taken in consideration and the capacity of the valve is set by the parameters SFP and oPd, respectively.

13.6 PRESSURE FILTERING AnP PARAMETERFor a good SH regulation, it’s important to use a filtered value of the pressure. This can be done by the parameter AnP. Suggested values: From 1-5 evaporators for each racks: AnP = 5-6From 6-30 evaporators for each racks: AnP = 3-4 More than 30 evaporators for each racks: AnP = 2-3

14. DISPLAY MESSAGES

Display Causes

Notes

KEYBOARD

No display: the keyboard is trying to Press for 3 seconds UP arrow,

1 nod work with another board that is not enter the SEC menu and select

working or not present

LOC entry.

2 Pon Keyboard is unlocked

3 PoF Keyboard is locked

4 rSt Alarm reset

Alarm output deactivated

noP, nP nA

Not present (configuration) Not available (evaluation)

The keyboard is not able to 6 noL communicate with the EC3-XM678D

Verify the connection. Call the Service

ALARM FROM PROBE INPUT

P1 P2 P3 P4 P5

Sensor brake down, value out of range or sensor incorrectly configured P1C, P2C to P6C.PPF can be showed by slaves of pressure that don’t receive the

P1: the cooling output works with Con and COF, With defrost probe on error the defrost is performed only at interval.

P6 PPF CPF

value of pressure.CPF is showed when the remote probe 4 is not working.

For P5, P6 and PPF: the percentage of the valve opening is fixed at PEO value.

TEMPERATURE ALARM

Temperature alarm from parameter Outputs unchanged. ALU on probe rAL.

Temperature alarm from parameter Outputs unchanged. ALL on probe rAL.

9 HA2 Second high temperature alarm

Outputs depends on setting.

10 LA2 Second low temperature alarm

Outputs depends on setting.

DIGITAL INPUT ALARM

Door open alarm from input i1F, i2F Cooling relay and fan follow the

13 dA or i3F = after delay d1d, d2d or

odc parameter. Cooling restart

d3d.

as specified on rrd parameter.

14 EA

Generic alarm from digital input i1F, i2F, i3F = EAL.

Severe alarm of regulation lock

15 CA from digital input i1F, i2F, i3F =

Regulation output OFF.

bAL.

16 PAL

Pressure switch lock i1F, i2F o i3F = PAL.

All the outputs are OFF.

ELECTRONIC VALVE ALARM

17 LOP

Minimum operating pressure threshold from LOP parameter.

The valve output increases its opening of dML quantity every second.

18 MOP

Maximum operating pressure threshold from MOP parameter.

The valve output decreases its opening of dML quantity every second.

19 LSH

Low superheating from LSH parameter and SHd delay.

The valve will be closed; the alarm will be showed after SHd delay.

20 HSH

High superheating from HSH parameter and SHd delay.

Only display.

CLOCK ALARM

Defrost will be performed with

21 rtC Clock settings lost.

IdF till restoring the settings of

RTC.

22 rtF Clock damaged.

Defrost will be performed with IdF.

OTHERS

23 EE 24 Err 25 End

EEPROM serious problem.Error with upload/download parameters. Parameters have been correctly transferred.

Output OFF. Repeat the operation.

26 dEF Defrost is progress

27 cLn Cleaning function active

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14.1 ALLARM RECOVERYProbe alarms P1, P2, P3 and P4 start some seconds after the fault in the related probe; they automatically stop some seconds after the probe restarts normal operation. Check connections before replacing the probe. Temperature alarms HA, LA, HA2 and LA2 automatically stop as soon as the temperature returns to normal values. Alarms EA and CA (with i1F = bAL) recover as soon as the digital input is disabled. Alarm CA (with i1F = PAL) recovers only by switching off and on the instrument.15. ELECTRONIC EXPANSION VALVE MENU

1. Enter the Programming mode by pressing the SET and

DOWN key for few seconds (measurement unit starts

blinking). 2. Press arrows until the instrument shows EEU label;

3. Press SET. You are now in EEV function menu;

16. CONTROLLING LOADS

16.1 TEMPERATURE PROBE REFERENCE FOR REGULATION Up to 5 temperature probes can be used for the temperature regulation.

rPA

rPb

Reg.

rP3

rP4

Temperature reference function

Temp.

rP5

rPd

rPE

It’s possible to set the probes used for temperature regulation. Up to 5 Temperature inputs Pb1, Pb2, Pb3, Pb4, Pb6, can be used. To support above function, the parameters rPA, rPb, rP3, rP4, rP5 are used. Which temperature probe methods of combine is set by par. rPd among the following: Average, Minimum, Maximum, First, or Mix.

rPd = Avr rPd = Min rPd = MAS rPd = FrS rPd = rPE

Average average of all valid probes defined as Regulation Probe by par. (rPA, rPb, rP3, rP4, rP5) Minimum minimum of all valid probes defined as Regulation Probe by par. (rPA, rPb, rP3, rP4, rP5) Maximum maximum of all valid probes defined as Regulation Probe by par. (rPA, rPb, rP3, rP4, rP5) First first valid probe defined as Regulation Probe by par. (rPA, rPb, rP3, rP4, rP5) Mix this is currently done with “rPE” parameter.

16.1.1 Sensor’s failure In case of multiple temperature sensor regulation: (rPd = Aur, Min, Max or rPE), and with sensor failure, the remaining sensors are used for the regulation. In case of all sensors failure, the valve opens at PEO percentage16.2 DUAL TEMP MODE OPERATIONController can have up to 4 pre-set regulation. The preset regulation is set in the parameter MAP. By digital input or supervising system is possible to enable the second regulation mode, set in the parameter M2P. In this way a dual temp case can be easily set and controlled.16.2.1 Second map function by digital input configuration By setting on digital input among i1F, i2F, i3F as the “nt” the map set in the parameter M2P is loaded when the digital input is enabled.16.3 THE SOLENOID VALVEThe regulation is performed according to the temperature measured by the thermostat probe that can be physical probe or virtual probe obtained by a weighted average between two probes (see parameters table description) with a positive differential from the set point. If the temperature increases and reaches set point plus differential the solenoid valve is opened and then it is closed when the temperature reaches the set point value again. In case of fault in the thermostat probe the opening and closing time of solenoid valve is configured by “Con” and “CoF” parameters.16.4 STANDARD REGULATION AND CONTINUOUS REGULATIONThe regulation can be performed in two ways: the goal of the first way (standard regulation) is reaching the best superheat via a classic temperature regulation obtained using hysteresis. The second way, permits to use the valve to realise an high performance temperature regulation with a good factor of superheat precision. This second possibility, it can be used only in centralized plants and it is available only with electronic expansion valve by selecting CrE = Y parameter.First kind of regulation: In this case, the Hy parameter is the differential for standard ON/OFF regulation. During this phase the valve will maintain the SH set pointSecond kind of regulation Continuous regulation In this case, the Hy parameter is the proportional band of PI in charge of room temperature regulation and we advise to use at least Hy = 5.0°C/ 10°F. The int parameter is the integral time of the same PI regulator. Increasing int parameter the PI regulator become slow in reaction and of course is true vice versa. To disable the integral part of regulation you should set int = 0.

16.5 PUMP DOWN BEFORE DEFROSTThe following parameters has been added: Pdt pump down type (nu; FAn; F-C)With Pdt = nu, the pump down is not enabled. With Pdt = Fan, when a defrost trigger is given: a. Compressor relay will be open. b. EEV valve (if present):– will be closed with CrE = n, y – will be open with CrE = EUP or EU5 c. Fan will be forced on for Pdn time With Pdt = F – C, when a defrost trigger is given: a. EEV valve (if present): – will be closed with CrE = n, y – will be open with CrE = EUP or EU5 b. Compressor relay and Fan will be forced on for Pdn time. Pdn pump down duration (0 – 255 min)16.6 DEFROSTDEFROST STARTING In any case, the device check the temperature read by configured defrost probe before starting defrost procedure, after that: – (If RTC is present)Two defrost modes are available through the “tdF”parameter: defrost with electrical heater and hot gas defrost. The defrost interval is controlled by parameter “EdF”: (EdF = rtc) defrost is made in real time depending on the hours set in the parameters Ld1 – Ld6 in workdays and in Sd1 – Sd6 on holidays; (EdF = in) the defrost is made every “IdF” time; – defrost cycle starting can be operated locally (manual activation by means of the keyboard or digital input or end of interval time) or the command can come from the Master defrost unit of the LAN. In this case the controller will operate the defrost cycle following the parameters it has programmed but, at the end of the drip time, will wait that all the other controllers of the LAN finish their defrost cycle before to re-start the normal regulation of the temperature according to dEM parameter; – Every time any of the controller of the LAN begin a defrost cycle it issue the command into the network making all the other controllers start their own cycle. This allows a perfect synchronisation of the defrost in the whole multiplexed cabinet according to LMd parameter; – Selecting dPA and dPb probes and by changing the dtP and ddP parameters the defrost can be started when the difference between dPA and dPb probes is lower than dtP for all ddP time. This is useful to start defrost when a low thermal exchange is detected. If ddP = 0 this function is disabled;MINIMUM DEFROST TIME The “ndt” (0 – MnF) Minimum Defrost Time, set the minimum defrost duration, when the defrost is ended by evaporator temperature probe. The ndt time is taken in account everytime the defrost is trigged, independently form the value of end defrost temperature probe and end defrost digital input status.DEFROST ENDING – When defrost is started via rtc, the maximum duration of defrost is obtainedfrom Md parameter and the defrost end temperature is obtained from dtE parameter (and dtS if two defrost probes are selected). – If dPA and dPb are present and d2P = y the instrument stops the defrost procedure when dPA is higher than dtE temperature and dPb is higher than dtS temperature;At the end of defrost the drip time is controlled through the “Fdt” parameter.16.6.1 Kind of defrost The kind of defrost is set by parameter tdF among the following possibilities tdF = Air natural defrost.Defrost is made by opening the compressor/solenoid relay. The fan during defrost depends on the parameter Fnc. Defrost relay is off. The valve is closed tdF = EL defrost with electrical heater: Defrost is made by opening the compressor/solenoid relay. The fan during defrost depends on the parameter Fnc. Defrost relay is on. The valve is closed tdF = in hot gas defrost. Defrost is made by closing the compressor/solenoid relay. The fan during defrost depends on the parameter Fnc. Defrost relay is on. The valve opening percentage during the defrost is set by the par. oPd.16.7 ON DEMAND DEFROSTCONCEPT Controller can perform on demand defrost. It is based on the behavior of evaporator temperature. Controller monitors the evaporator temperature and triggers a defrost if some conditions are satisfied. For defrost efficiency its’ important to place the “end defrost probe”, usually P2, in the coldest place of the evaporator, usually immediately after the expansion valve.NOTE: Because of different type of evaporators and consequentially behaviors, it’s warmed suggested to test and validate this algorithm in a climatic chamber before applying it in the field.PARAMETES & SETTINGS The «On Demand Defrost» can be activated with the following settings: CrE = “n” , EdF =”Aut” cdt: evaporator temperature differential to trigger a defrost (defaultcdt = 4°K) nbd: minimum compressor run before automatic defrost (or minimumtime of activation of solenoid valve) it has to be set properly. It prevents defrost from starting (default nbd = 4.0h) Mbd: max compressor run before automatic defrost (or max time of activation of solenoid valve): it has to be set properly. If reached a defrost is triggered (default Mbd = 16.0h) nct: minimum evap. temperature, it has to be set properly. a defrost is triggered when this temperature reached (default nct = -30°C)NOTE: With CrE = “y” or CrE = “EUP” or CrE = EU5 only «RTC defrost» and «interval defrost» are allowed. With EdF = “Aut” & CrE = “y” or CrE = “EUP” or CrE = EU5 the «interval defrost» will be performed, as with EdF = in

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EXCEPTIONS: 1. A defrost cannot be triggered if the compressor has not ran more thanminimum time (nbd parameter) since the last defrost or initial power up. (Resolution hh.m) 2. If the compressor has ran for more than maximum time since the last defrost or initial power up (Mbd parameter), a defrost is triggered regardless of coil temperature. 3. If the coil temperature reaches very low temperature, (nct parameter), a defrost is triggered regardless of cdt value.16.8 FANSCONTROL WITH RELAY The fan control mode is selected by means of the “FnC” parameter:C – n = running with the solenoid valve, OFF during the defrost; C – y = running with th1e solenoid valve, ON during the defrost; O – n = continuous mode, OFF during the defrost; O – y = continuous mode, ON during the defrost;An additional parameter “FSt” provides the setting of temperature, detected by the evaporator probe, above which the fans are always OFF. This can be used to make sure circulation of air only if his temperature is lower than set in “FSt”.CONTROL WITH ANALOG OUTPUT (if present)

The modulating output (trA=rEG) works in proportional way (excluding the first AMt seconds where the fans speed is the maximum). The regulation set point is relative to regulation set point and is indicated by ASr, the proportional band is always located above SET+ASr value and its value is PbA. The fan are at minimum speed (AMi) when the temperature read by fan probe is SET+ASr and the fan is at maximum speed (AMA) when the temperature is SET+ASr+PbA.16.9 ANTI SWEAT HEATERSThe anti-sweat heater regulation can be performed with on board relay (if OA6 = AC) or with the analog output (if present by setting trA = AC). However the regulation can be performed in two ways:· Without real dew-point information: in this case the default value for dew-point is used (SdP parameter).· Receiving dew-point from XWEB5000 system: the SdP parameter is overwritten when valid value for dew-point is received from XWEB. In case of XWEB link is lost, SdP is the value that will be used for safety.The best performance can be obtained using probe 4. In this case, the regulation follows the chart:

Probe 4 should be placed on the showcase glass. For each cabinet can be used only one probe 4 (P4) sending its value to the others section that are connected to the LAN.

HOW TO WORK WITH PROBE 4 THROUGH THE LAN:

Param.

EC3-XM6x8D_1 EC3-XM6x8D_2 + with EC3-XM6x8D_3+

Without probe 4

probe 4

Without probe 4

Adr

n + 1

n + 2

LCP

LCP = n

LCP = Y

LCP = n

P4C

LAN or not connect P4C = NTC, PtC or

the probe

PtM

LAN or not connect the probe

trA

trA = AC if the device has the analog output

OA6

OA6 = AC if the device will use the AUX relay for regulation

In case of P4 error or if P4 is absent the output is at AMA value for the AMt time then the output is at 0 value for the time [255 AMt] time performing a simple PWM modulation.

16.10 CLEANING MODE FUNCTION BY DIGITAL INPUT CONFIGURATION

The “cLn” value is added to the functions of the digital input. The function has the same basic features of the stand by function, but with the following differences: a. By the parameter LcL (no, yES) it’s possible to set if the light is on or off duringcleaning mode. This parameter LcL can be override by light button or by Light on/off Modbus command. b. By the parameter FcL (no, yES) ) it’s possible to set if the fan is on or off during cleaning mode.

In case of fan on, the FSt parameter (fan stop temperature) is override.

16.10.1 Display During the Cleaning Status, the display shows the “cLn” message.

16.11 AUXILIARY OUTPUT

The auxiliary output is switch ON and OFF by means of the corresponding digital input or by pressing and releasing the down arrow key.

17. PARAMETER LIST

REGULATION

Set rtC EEU HyInt CrE LS US OdSAC CCtCCS ConCoF

Temperature set point (LS – US) Access to CLOCK submenu (if present); Access to EEV submenu Differential: (0.1 – 25,5°C; 1 – 45°F): Intervention differential for set point, always positive. Solenoid valve Cut IN is Set Point Plus Differential (Hy). Solenoid valve Cut OUT is when the temperature reaches the set point. Integral time for room temperature regulation: (0 – 255 s) integral time for room temperature PI regulator. 0= no integral action; Continuous regulation activation: (n – Y) n = standard regulation; Y = continuous regulation. Use it only in centralized plants; Minimum set point limit: (-55.0°C – SET; -67°F – SET) Sets the minimum acceptable value for the set point. Maximum set point limit: (SET – ÷150°C; SET – 302°F) Set the maximum acceptable value for set point. Outputs activation delay at start up: (0 – 255 min) This function is enabled at the initial start-up of the instrument and inhibits any output activation for the period of time set in the parameter. (AUX and Light can work) Anti-short cycle delay: (0 – 60 min) interval between the solenoid valve stop and the following restart. Compressor ON time during continuous cycle: (0.0 – 24.0 h; resolution 10min) Allows to set the length of the continuous cycle: compressor stays on without interruption for the CCt time. Can be used, for instance, when the room is filled with new products. Set point for continuous cycle: (-55 – 150°C / -67 – 302°F) it sets the set point used during the continuous cycle. solenoid valve ON time with faulty probe: (0÷255 min) time during which the solenoid valve is active in case of faulty thermostat probe. With Con =0 solenoid valve is always OFF. solenoid valve OFF time with faulty probe: (0 – 255 min) time during which the solenoid valve is off in case of faulty thermostat probe. With COF = 0 solenoid valve is always active.

DISPLAY

CF Temperature measurement unit: °C = Celsius; °F = Fahrenheit. !!! WARNING !!! When the measurement unit is changed the parameters with temperature values have to be checked.PrU Pressure mode: (rEL or AbS) it defines the mode to use the pressure. !!! WARNING !!! the setting of PrU is used for all the pressure parameters. If PrU = rEL all pressure parameters are in relative pressure unit, if PrU = AbS all pressure parameters are in absolute pressure unit.PMU Pressure measurement unit: (bAr – PSI – MPA) it selects the pressure measurement units. MPA = the value of pressure measured by kPA*10.PMd Way of displaying pressure: (tEM – PrE) it permits showing the value measured by pressure probe with tEM= temperature or by PrE = pressurerES Resolution (for °C): (in = 1°C; dE = 0.1°C) allows decimal point display rEP Resolution for % value: (in = integer; dE = with decimal point) allowsdecimal point display for percentage values Lod Instrument display: (nP; P1; P2, P3, P4, P5, P6, tEr, dEF) it selects whichprobe is displayed by the instrument. P1, P2, P3, P4, P5, P6, tEr = virtual probe for thermostat, dEF = virtual probe for defrost. rEd Remote display: (nP; P1; P2, P3, P4, P5, P6, tEr, dEF) it selects which probe is displayed by the X-REP. P1, P2, P3, P4, P5, P6, tEr = virtual probe for thermostat, dEF = virtual probe for defrost. dLy Display delay: (0 – 24.0 m; resolution 10s) when the temperature increases, the display is updated of 1 °C/1°F after this time. rPA Regulation probe A: (nP; P1; P2, P3, P4, P6) first probe used to regulate room temperature. If rPA = nP the regulation is performed with real value of rPb. rPb Regulation probe B: (nP; P1; P2, P3, P4, P5) second probe used to regulate room temperature. If rPb = nP the regulation is performed with real value of rPA rP3 Regulation probe 3: (nP; P1; P2, P3, P4, P6) third probe used to regulate room temperature, with rPd = Aur or Min or MA or FrS rP4 Regulation probe 4: (nP; P1; P2, P3, P4, P6) fourth probe used to regulate room temperature, with rPd = Aur or Min or MA or FrS rP5 Regulation probe 5: (nP; P1; P2, P3, P4, P6) fifth probe used to regulate room temperature, with rPd = Aur or Min or MA or FrS rPd Temperature Regulation Strategy: (Aur, Min, MAS, FrS, rPE)Aur: average of all valid probes defined as Regulation ProbeMin: minimum value of all valid probes defined as Regulation Probe MaS: maximum of all valid probes defined as Regulation Probe FrS: first valid probe defined as Regulation probe rPE: mix between rPA and rPb deifned by rPE parameter rPE Regulation virtual probe percentage: (0 – 100%) it defines the percentage of the rPA respect to rPb. The value used to regulate room temperature is obtained by:value_for_room = (rPA*rPE + rPb*(100-rPE))/100

ELECTRONIC EXPANSION VALVE SUBMENU FtY Kind of gas:

CODEr22 134 290 404 47A 47C 47F

REFR. OPERATING RANGE CODE REFR. OPERATING RANGE

R22 R134A R290 R404A R407A R407C R407F

-50 – 60°C/-58 – 120°F -50 -60°C/-58 – 120°F -50 – 60°C/-58 – 120°F -70 – 60°C/-94 – 120°F -50 – 60°C/-58 – 120°F -50 – 60°C/-58 – 120°F -50 – 60°C/-58 – 120°F

410 448 449 450 507 513 CO2

R410A R448A R449A R450A R507 R513A R744

-50 – 60°C/-58 – 120°F -45 – 60°C/-69 – 120°F -45 – 60°C/-69 – 120°F -45 – 60°C/-69 – 120°F -70 – 60°C/-94 – 120°F -45 – 60°C/-69 – 120°F -50 – 60°C/-58 – 120°F

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ATU Self-adaptive SH regulation enabling (No; yES) This parameter enables the self-adaptive regulation of the superheat. CrE = no must to be set, when this function is enabled.AMS Minimum STABLE superheat search (No; yES). This parameter enables the search of the minimum stable superheat. The lowest admitted value is LSH+2°CSSH Superheat set point: (0.1 – 25.5°C; 1 – 45°F) used to regulate superheat SHy Differential for low superheat function: this value is used by X-WEB withXeCO2 function. When the monitoring system enable the low superheat Shy is subtracted to the SSH set point (-12.0 – 12.0°C) Pb Proportional band: (0.1 – 60.0 / 1 – 108°F) PI proportional band PbH Dead band for superheat regulation: it’s a band across the SH set point, inside this band the valve opening percentage is not updated. rS Band Offset: (-12.0 – 12.0°C; -21 – 21°F) PI band offset inC Integration time: (0 255 s) PI integration time dFC Derivative time: (0 255 s) PID derivative time Ped Probe error delay before stopping regulation: 0 – 239 seconds On (240) PEO Probe Error opening percentage: (0÷100%) if a probe error occurs, valve opening percentage is PEo; SFd Start Function duration: (0.0 – 42.0 min: resolution 10 s) It sets start function duration and post-defrost duration. During this phase the SH alarms are overridden; SFP Start opening Percentage: (0 – 100 %) Opening valve percentage when start function is active. This phase duration is SFd time; OHg Opening Percentage during hot gas defrost: (0 100 %) Opening valve percentage when hot gas defrost is active. Pdd Post Defrost Function duration: (0.0 – 42.0 min: resolution 10 s) It sets start function duration and post-defrost duration. During this phase the alarms are overridden; OPd Opening Percentage after defrost phase: (0 – 100%) Opening valve percentage when after defrost function is active. Phase duration is Pdd time; LnF Minimum opening percentage at normal Functioning: (0 100 %) during regulation it sets the minimum valve opening percentage; (0 MnF %) MnF Maximum opening percentage at normal Functioning: (LnF – 100 %) during regulation it sets the maximum valve opening percentage dCL Regulation off delay, when the set point is reached (0 255 s) Fot Forced opening percentage: (0 100 % – nu) it permits to force the valve opening to the specified value. This value overwrites the value calculated by PID algorithm. !!! WARNING !!! to obtain the correct superheat regulation you have to set Fot = nu LPL Lower Pressure Limit for superheat regulation: (PA4 – P20 bar / psi / kPA*10) when suction pressure comes down to LPL the regulation is performed with a LPL fixed value for pressure, when pressure comes back to LPL the normal pressure value is used. (related to PrM parameter) MOP Maximum Operating Pressure threshold: (PA4 – P20 bar / psi / kPA*10) if suction pressure exceeds maximum operating pressure value, instrument signals situation with MOP alarm. (related to PrM parameter) dMP Delay for Maximum Operating Pressure threshold alarm signalling: (0 ÷ 255s) when a MOP alarm occurs it’s signalled after dMP time LOP Minimum Operating Pressure threshold: (PA4 – P20 bar / psi / kPA*10) if the suction pressure comes down to this value a low-pressure alarm is signalled with LOP alarm. (related to PrM parameter) dLP Delay for Minimum Operating Pressure threshold alarm signalling: (0 255 s) when a LOP alarm occurs it’s signalled after dMP time dML Opening steps variation during MOP and LOP: (0 – 100%) when a MOP alarm occurs valve will close of the dML percentage every cycle period until MOP alarm is active. When LOP occurs valve will open of the dML percentage every cycle period until LOP alarm is active. AAS Low superheat alarm with “XeCO2 function active: n = no superheat alarm, Y = Low superheat alarm is still signalled HSH High Superheat alarm: (LSH – 80.0°C / LSH – 144°F) when superheat exceeds this value an high superheat alarm is signalled after interval SHd LSH Low Superheat alarm: (0 – HSH °C / 0 – HSH °F) when superheat goes down to this value a low superheat alarm is signalled after interval SHd dHS High superheat alarm activation delay: (0 – 42 min: resolution 10 s) when high superheat alarm occurs, the time dHS must pass before alarm signalling. dLS Low superheat alarm activation delay: (0 – 42 min: resolution 10 s) when low superheat alarm occurs, the time SHd must pass before alarm signalling. LSA Opening percentage decrease with low Superheat alarm: (0 100 %) FrC Fast-recovery Constant: (0 – 100 s) permits to increase integral time when SH is below the set-point. If FrC = 0 fast recovery function is disabled. AnP Pressure filter (0 – 100) It uses the last average values of the pressure to calculate the superheat. E.I. with AnP = 5 controller uses the average pressure in the last 5 seconds to calculate the SH. NOTE: avoid values higher than 10 Ant Temperature filter (0 – 100) It uses the last average values of the temperature to calculate the superheat. E.I. with Ant = 5 controller uses the average temperature in the last 5 seconds to calculate the SH. NOTE: avoid values higher than 10 SLb Reaction time (0 – 255 s): time to update the valve open percentage. EI. With SLb = 24: the valve open percentage is updated every 24 seconds. tEP Predefined valve selection: (0 10) if (tEP = 0) the user has to modify all the parameters of configuration in order to use the valve. If tEP is different from 0 the device performs a fast configuration of the following parameters: LSt, uSt, Sr, CPP, CHd. To select the right number please use the following table:

tEP

Model

LSt

uSt

(steps*10) (steps*10)

CPP CHd Sr (mA*10) (mA*10) (step/s)

tEu (bip/ unip)

HSF (Half/ full)

Manual settings

Par

Par Par Par

Danfoss ETS-25/50

262

10 300 bP FUL

Danfoss ETS-100

353

10 300 bP FUL

Danfoss ETS-250/400

381

10 300 bP FUL

Emerson EX4 – 6

10 500 bP FUL

If tEP is different from 0 previous configuration of LSt, uSt, Sr, CPP and CHd are overwritten.

tEU Type of Stepper motor: [uP-bP] it permits to select the kind of valve. uP = 5 – 6 wires unipolar valves; bP = 4 wires bipolar valves; !!!WARNING!!! by changing this parameter the valve must be reinitialized.bdM bipolar valve piloting: [“UAM”(0 = Wave Mode) – “noM”(1 = Normal Mode)] Bipolar valve pilot mode: Wave Mode – Normal ModeHFS Kind of motor movement: (HAF; FUL) HAF = half step. Use this setting for the unipolar valve. FUL = half step. Use this setting for the bipolar valve.LSt Minimum number of steps: [0 – USt] it permits to select the minimum number of steps. At this number of steps the valve should be closed. So it’s necessary the reading of manufacturer datasheet to set correctly this parameter. It’s the minimum number of steps to stay in advised range of functioning. !!! WARNING !!! By changing this parameter the valve has to be reinitialized. The device performs this procedure automatically and restarts its normal functioning when the programming mode ends.USt Maximum number of steps: [LSt – 800*10] it permits to select the maximum number of steps. At this number of steps the valve should be completely opened. Read the datasheet provided by manufacturer of the valve to set correctly this parameter. It’s the maximum number of steps to stay in advised range of functioning.!!! WARNING !!! By changing this parameter the valve has to be reinitialized. The device performs this procedure automatically and restarts its normal functioning when the programming mode ends.ESt Extra step during closing phase: (0 – 255 (*10)) it sets the number of extra steps the controller performs, when the valve is closed at start up, and during the pauses of regulation, to force the closure of the valve. NOTE: To set ESt the following steps has to be done: 1. Set the kind of valve by the parameter tEP. This pre-set the parameters related to the valve 2. Set the right value of EStSr Step rate [10 – 600 step/sec] it’s the maximum speed to change step without losing precision (means without losing steps). It’s advised to stay under the maximum speed.CPP Current per phase (only bipolar valves): [0 – 100*10 mA] it’s the maximum current per phase used to drive valve. It’s used only with bipolar valves.CHd Holding current per phase (only bipolar valves): [0 t- 100*10 mA] it’s the current per phase when the valve is stopped for more than 4 min. It’s used only with bipolar valves.GtC Minimum Interval to enable calibration cycles with extra steps ESt: [0 GtH (h)] Indicates the number of hours after which the valve calibration is enabled (with extra steps ESt) when the regulation closes the valve at 0 %.GtH Interval between automatic valve calibration cycles: [GtC – 255 (ore)] Dty Pilot duty: (20 – 100%) with dtY = 100, the valve is moved withoutinterruption, with dtY = 60 the valve is moved with a pilot duty of 60 %: for 0.6 s on and then for 0.4 s off till the final position is reached.

DEFROST

dPA dPb tdF EdF Srt Hyr tod d2PdtE dtS IdF idEndt MdF dSd dFd dAd FdtdPo dAF

defrost Probe A: (nP; P1; P2, P3, P4, P6) first probe used for defrost. If

rPA=nP the regulation is performed with real value of dPb.

defrost Probe B: (nP; P1; P2, P3, P4, P6) second probe used for defrost. If

rPB=nP the regulation is performed with real value of dPA.

value_for_defrost= (dPA*dPE + dPb*(100-dPE))/100

Defrost type: (Air, EL, in)

Air = Air defrost (defrost relay is not switched on during defrost)

EL = defrost with electrical heater;

in = hot gas defrost;

Defrost mode: (rtc in- Aut) (only if RTC is present) rtc= defrost activation

via RTC; in= defrost activation with idf; AUt = on demand defrost.

Heater set point during defrost: (-55 – 150°C; -67 – 302°F) if tdF = EL during

the defrost the defrost relay perform an ON/OFF regulation with Srt as set point.

Differential for heater: (0.1- 25.5°C, 1 – 45°F) the differential for heater

Time out for heater: (0 – 255 min.) if the defrost probe temperature is bigger

than Srt for all tod time the defrost ends altough the defrost probe temperature

is lower than dtE or dtS. It permits to reduce defrost duration;

Defrost with two probes: (n – Y) n= only the dPA probe is used to defrost

management; Y= defrost is managed with dPA probe and dPb probe. Defrost

can performed only if both probe value are lower than dtE for dPA probe and

dtS for dPb probe;

Defrost termination temperature (Probe A): (-55 – 50°C; -67 – 122°F)

(Enabled only when the evaporator probe is present) sets the temperature

measured by the evaporator probe dPA which causes the end of defrost

Defrost termination temperature (Probe B): (-55 – 50°C; -67 – 122°F)

(Enabled only when the evaporator probe is present) sets the temperature

measured by the evaporator probe dPb which causes the end of defrost

Interval between defrosts: (0 – 120h) Determines the time interval between

the beginning of two defrost cycles

Time to next defrost log into not volatile memory

no: time to next defrost is not logged into no volatile memory, this means

controller will use the idF interval after a power off. E.I. idF = 8: controller

performs a defrost every 8h. If controller is switched off, independently from

when last defrost happened, at power on it will do the first defrost after 8 h.

yES: time to next defrost is logged into no volatile memory, this means

controller will use it after a power off. E.I. idF = 8: controller performs a defrost

every 8h. If controller is switched off 6 hours after last defrost, at power on it

will do the first defrost after 2 hours (6+2 = 8). It is useful in places subjected to

frequent power outages.

Minimum duration of defrost: (0 – MdF min) it sets the minimum defrost

duration, independently form the temperature reached by the end defrost probes;

Maximum duration of defrost: (ndt – 255 min) When dPA and dPb aren’t

present, it sets the defrost duration, otherwise it sets the maximum duration for

defrost;

Start defrost delay: (0 – 255 min) This is useful when different defrost start

times are necessary to avoid overloading the plant.

Display during defrost: rt = real temperature; it = temperature reading at the

defrost start; Set = set point; dEF = “dEF” label;

Defrost display time out: (0 – 255 min) Sets the maximum time between the

end of defrost and the restarting of the real room temperature display.

Drain down time: (0 – 255 min.) time interval between reaching defrost

termination temperature and the restoring of the control’s normal operation.

This time allows the evaporator to eliminate water drops that might have formed

due to defrost.

First defrost after start-up: y = Immediately; n = after the IdF time

Defrost delay after continuous cycle: (0 – 23.5 h) time interval between the

end of the fast-freezing cycle and the following defrost related to it.

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PUMP DOWN

Pdt Pump down type (nu, FAn, F-C) nu: pump down disabled Fan: pump down enabled. Fan is activated for pump down duration, compressor relay/solenoid valve is switched off with CrE = n/Y o or activated with CrE=EUP or EU5. F – C: pump down enabled. Fan and compressor relay are activated for pump down duration. See above for solenoid valve behaviour.Pdn Pump down duration (0 255 min)

ON DEMAND DEFROST

Ctd nbd Mdb nct

Differential for defrost start (0.1 – 25.5°C, 1 – 45°F) Minimum Compressor run time before defrost (0.0 – 24h 00 min) Maximum Compressor run time before defrost (0.0 24 h 00 min) Minimum coil temperature to trigger a defrost (-55 – 150°C; 67 – 302°F)

FAN

FPA Fan probe A: (nP; P1; P2, P3, P4, P5) first probe used for fan. If FPA = nP the regulation is performed with real value of FPBFnC Fan operating mode: C-n = running with the solenoid valve, OFF during the defrost; C-y = running with the solenoid valve, ON during the defrost; O-n = continuous mode, OFF during the defrost; O-y = continuous mode, ON during the defrostFnd Fan delay after defrost: (0 – 255 min) The time interval between the defrost end and evaporator fans start.FCt Temperature differential avoiding short cycles of fans (0 – 50°C; 0 – 90°F) If the difference of temperature between the evaporator and the room probes is more than the value of the Fct parameter, the fans are switched on;FSt Fan stop temperature: (-50 – 110°C; -58 – 230°F) setting of temperature, detected by evaporator probe, above which the fan is always OFF.FHy Differential to restart fan: (0.1 – 25.5°C; 1 – 45°F) when stopped, fan restarts when fan probe reaches FSt – FHy temperaturetFE Fan regulation by temperature during defrost (n, y) Fod Fan activation time after defrost: (0 – 255 min.) it forces fan activation forindicated time; Fon Fan ON time: (0 – 15 min) with Fnc = C_n or C_y, (fan activated in parallelwith compressor). it sets the evaporator fan ON cycling time when the compressor is off. With Fon = 0 and FoF 0 the fan are always off, with Fon = 0 and FoF = 0 the fan are always off. FoF Fan OFF time: (0 – 15 min) with Fnc = C_n or C_y, (fan activated in parallel with compressor). it sets the evaporator fan off cycling time when the compressor is off. With Fon = 0 and FoF 0 the fan are always off, with Fon = 0 and FoF = 0 the fan are always off.

MODULATING OUTPUT (AnOUT) if present

trA Kind of regulation with PWM output: (UAL rEG AC) it selects the functioning for the PWM output. UAL= the output is at FSA value; rEG = the output is regulated with fan algorithm described in fan section; AC = anti-sweat heaters control (require the XWEB5000 system);SOA Fixed value for analog output: (0 100 %) value for the output if trA=UAL; SdP Default value for Dew point: (-55 – 50°C; -67 – 122°F) default value of dewpoint used when there is no supervising system (XWEB5000). Used only when trA = AC ASr Dew-point offset (trA = AC) / Differential for modulating fan regulation (trA = rEG): (-25.5 – 25.5°C) (-45 – 45°F); PbA Differential for anti-sweat heaters: (0.1 – 25.5°C) (1 – 45°F) AMi Minimum value for analog output: (0 – AMA) AMA Maximum value for analog output: (Ami – 100) AMt Anti-sweat heaters cycle period (trA = AC)/ Time with fan at maximum speed (trA=rEG): (0 – 255 s) when the fan starts, during this time the fan is at maximum speed

ALARMS

rAL ALC ALUALLAHy ALd rA2 A2U A2L A2H Ad2dAOEdAdot Sti Std tbA

Probe for temperature alarm: (nP – P1 – P2 – P3 – P4 – P5 tEr) it selects the probe used to signal alarm temperature Temperature alarm configuration: rE = High and Low alarms related to Set Point; Ab = High and low alarms related to the absolute temperature. High temperature alarm setting: (ALC = rE, 0 – 50°C or 90°F / ALC = Ab, ALL – 150°C or 302°F) when this temperature is reached and after the ALd delay time the HA alarm is enabled. Low temperature alarm setting: (ALC = rE , 0 – 50 °C or 90°F / ALC = Ab , – 55°C or – 67°F – ALU) when this temperature is reached and after the ALd delay time, the LA alarm is enabled. Differential for temperature alarm: (0.1 – 25.5°C; 1 – 45°F) Intervention differential for recovery of temperature alarm Temperature alarm delay: (0 – 255 min) time interval between the detection of an alarm condition and the corresponding alarm signalling. Probe for second temperature alarm: (nP – P1 – P2 – P3 – P4 – P5 tEr) it selects the probe used to signal alarm temperature Second high temperature alarm setting: (A2L – 150°C or 302°F) when this temperature is reached and after the A2d delay time; HA2 alarm is signalled. Second Low temperature alarm setting: (- 55°C or – 67°F – A2U) when this temperature is reached and after the A2d delay time, LA2 alarm is signalled. Differential for second temperature alarm: (0.1 – 25.5°C / 1 – 45°F) Intervention differential for recovery of second temperature alarm Second temperature alarm delay: (0 – 255 min) time interval between the detection of second temperature alarm condition and the corresponding alarm signalling. Delay of temperature alarm at start-up: (0 min 23 h 50 min) time interval between the detection of the temp. alarm condition after the instrument power on and the alarm signalling. Alarm delay at the end of defrost: (0 – 255 min) Time interval between the detection of the temp. alarm condition at the end of defrost and the alarm signalling. Temperature alarm exclusion after door open: (0 – 255 min.) Stop regulation interval: (0 – 24 h: tens of minutes) after regulating continuously Sti time, the valve closes for Std time in order to prevent ice creation. Stop duration: (0 – 60 min.) it defines stop regulation time after Sti. Disabling alarm relay by pressing a key: (n; Y)

OPTIONAL OUTPUT (AnOUT) if present

oA5 relay at term. 1-2-3 configuration: (nP CPr -CP2- -dEF-Fan-ALr-LiG-AUSHtr-OnF – AC): nP = not used; CPr = relay works as a compressor or solenoid valve relay; CP2 = relay works as second dEF = relay works as defrost relay; Fan = relay works as a Fan relay; ALr = activation with alarm conditions; LiG

oA6CoM AOP iAU

= light activation; AUS = auxiliary relay, it can be switched ON/OFF also by key; Htr = dead band regulation (not compatible with CrE = y); OnF = ON/OFF functioning, AC = anti sweat heaters relay at term. 17-18 configuration: nP CPr -CP2- -dEF-Fan-ALr-LiG-AUSHtr-OnF – AC): nP = not used; CPr = relay works as a compressor or solenoid valve relay; CP2 = relay works as second dEF = relay works as defrost relay; Fan = relay works as a Fan relay; ALr = activation with alarm conditions; LiG = light activation; AUS= auxiliary relay, it can be switched ON/OFF also by key; Htr = dead band regulation (not compatible with CrE = y); OnF = ON/OFF functioning, AC = anti sweat heaters Type of functioning modulating output: · For models with PWM / O.C. output PM5= PWM 50 Hz; PM6 = PWM60 Hz; OA7 = not set it; · For models with 4 – 20 mA / 0 – -10 V output Cur= 4 20 mA currentoutput; tEn = 0 10 V voltage output; Alarm relay polarity: cL = normally closed; oP = normally opened; Auxiliary output is unrelated to ON/OFF device status: n = if the instrument is switched off also the auxiliary output is switched off; Y = the auxiliary output state is unrelated to the ON/OFF device status

DIGITAL INPUTSi1P Digital input 1 polarity: (cL oP) CL: the digital input is activated by closing the contact; OP: the digital input is activated by opening the contact.i1F Digital input 1 function: (nu – EAL bAL PAL dor dEF AUS LiG OnF Htr FHU ES Hdy) nu = not used; EAL = external alarm; bAL = serious external alarm; PAL = pressure switch activation; dor = door open; dEF = defrost activation; AUS = auxiliary activation; LiG = light activation; OnF = switch on/off the instrument; FHU = not used; ES = activate energy saving; nt = second map enabling; cLn = clean function dEn = defrost off, CP1 = compressor 1 safety, CP2 = compressor 2 safety;d1d Time interval/delay for digital input alarm: (0 – 255 min.) Time interval to calculate the number of the pressure switch activation when i1F = PAL. If I1F = EAL or bAL (external alarms), “d1d” parameter defines the time delay between the detection and the successive signalling of the alarm. If i1F = dor this is the delay to activate door open alarmi2P Digital input 2 polarity: (cL oP) CL : the digital input is activated by closing the contact; OP: the digital input is activated by opening the contact.i2F Digital input 2 function: (nu – EAL bAL PAL dor dEF AUS LiG OnF Htr FHU ES Hdy) nu = not used; EAL = external alarm; bAL = serious external alarm; PAL = pressure switch activation; dor = door open; dEF = defrost activation; AUS = auxiliary activation; LiG = light activation; OnF = switch on/off the instrument; FHU = not used; ES = activate energy saving; nt = second map enabling; cLn = clean function dEn = defrost off, CP1 = compressor 1 safety, CP2 = compressor 2 safety;d2d Time interval/delay for digital input alarm: (0÷255 min.) Time interval to calculate the number of the pressure switch activation when i2F = PAL. If I2F = EAL or bAL (external alarms), “d2d” parameter defines the time delay between the detection and the successive signalling of the alarm. If i2F = dor this is the delay to activate door open alarmi3P Digital input 3 polarity: (cL oP) CL : the digital input is activated by closing the contact; OP: the digital input is activated by opening the contact.i3F Digital input 3 function: (nu – EAL bAL PAL dor dEF AUS LiG OnF Htr FHU ES Hdy) nu = not used; EAL = external alarm; bAL = serious external alarm; PAL = pressure switch activation; dor = door open; dEF = defrost activation; AUS = auxiliary activation; LiG = light activation; OnF = switch on/off the instrument; FHU = not used; ES = activate energy saving; nt = second map enabling; cLn = clean function dEn = defrost off, CP1 = compressor 1 safety, CP2 = compressor 2 safety;d3d Time interval/delay for digital input alarm: (0 – 255 min.) Time interval to calculate the number of the pressure switch activation when i3F = PAL. If i3F = EAL or bAL (external alarms), “d3d” parameter defines the time delay between the detection and the successive signalling of the alarm. If i3F = dor this is the delay to activate door open alarmnPS Pressure switch number: (0 – 15) Number of activations of the pressure switch, during the “d#d” interval, before signalling the alarm event (I2F = PAL). If the nPS activation in the did time is reached, switch off and on the instrument to restart normal regulation.odc Compressor and fan status when open door: no = normal; Fan = Fan OFF; CPr = Compressor OFF; F_C = Compressor and fan OFF.rrd Outputs restart after doA alarm: no = outputs not affected by the doA alarm; yES = outputs restart with the doA alarm;RTC SUBMENU (if present)CbP Clock Presence (n – y): it permits to disable or enable the clock; Hur Current hour (0 – 23 h) Min Current minute (0 59 min) dAY Current day (Sun – SAt) Hd1 First weekly holiday (Sun – nu) Set the first day of the week which follows theholiday times. Hd2 Second weekly holiday (Sun – nu) Set the second day of the week whichfollows the holiday times. Hd3 Third weekly holiday (Sun – nu) Set the third day of the week which followsthe holiday times. ILE Energy Saving cycle start during workdays: (0 23 h 50 min.) During theEnergy Saving cycle the set point is increased by the value in HES so that the operation set point is SET + HES. dLE Energy Saving cycle length during workdays: (0 24 h 00 min.) Sets the duration of the Energy Saving cycle on workdays. ISE Energy Saving cycle start on holidays. (0 – 23 h 50 min.) dSE Energy Saving cycle length on holidays (0 – 24 h 00 min.) HES Temperature increase during the Energy Saving cycle (-30 – 30°C; -54 – 54°F) sets the increasing value of the set point during the Energy Saving cycle. Ld1-Ld6: Workday defrost start (0 – 23 h 50 min.) These parameters set thebeginning of the 6 programmable defrost cycles during workdays. Ex. When Ld2 = 12.4 the second defrost starts at 12.40 during workdays. Sd1-Sd6: Holiday defrost start (0 – 23 h 50 min.) These parameters set the beginning of the 6 programmable defrost cycles on holidays. Ex. When Sd2 = 3.4 the second defrost starts at 3.40 on holidays.ENERGY SAVINGHES Temperature increase during the Energy Saving cycle: (-30 – 30°C; -54 – 54°F) sets the increasing value of the set point during the Energy Saving cycle.

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PEL Energy saving activation when light is switched off: (n – Y) n = function disabled; Y = energy saving is activated when the light is switched off and vice versa;

LAN MANAGEMENT

LMd dEM LSP LdS LOF LLi LAU LESLSdLPP LCP StM ACE

Desfrost synchronisation: y = the section sends a command to start defrost to oher controllers, n = the section doesn’t send a global defrost command Type of end defrost: n = the of the LAN defrost are indipendent; y = the end of the defrost are synchronisated; L.A.N. set-point synchronisation: y = the section set-point, when modified, is updated to the same value on all the other sections; n = the set-point value is modified only in the local section L.A.N. display synchronisation: y = the value displayed by the section is sent to all the other sections; n = set-point value is modified only in the local section L.A.N. On/Off synchronisation this parameter states if the On/Off command of the section will act on all the other ones too: y = the On/Off command is sent to all the other sections; n= the On/Off command acts only in the local section L.A.N. light synchronisation this parameter states if the light command of the section will act on all the other ones too: y = the light command is sent to all the other sections; n = the light command acts only in the local section L.A.N. AUX output synchronisation this parameter states if the AUX command of the section will act on all the other ones too: y = the light command is sent to all the other sections; n = light command acts only in the local section L.A.N. energy saving synchronisation this parameter states if the energy saving command of the section will act on all the other ones too: y = the Energy Saving command is sent to all the other sections; n = the Energy Saving command acts only in the local section Remote probe display: this parameter states if the section has to display the local probe value or the value coming from another section: y = the displayed value is the one coming from another section (which has parameter LdS = y); n = the displayed value is the local probe one. Remote pressure probe: n = the value of pressure probe is read from local probe; Y= the value of pressure probe is sent via LAN; P4 probe sent via LAN (n, y) Solenoid activation via LAN: n = not used; Y = a generic cooling requests from LAN activate the solenoid valve connected to compressor relay; Cold Calling in LAN always enabled even if the compressor block: (n, y)

PROBE CONFIGURATION

P1C Probe 1 configuration: (nP Ptc ntc PtM) nP= not present; PtC = Ptc ntc = NTC; PtM = Pt1000;OF1 Probe 1 calibration: (-12.0 – 12.0°C/ -21 – 21°F) allows to adjust possible offset of the thermostat probe.P2C Probe 2 configuration: (nP Ptc ntc PtM) nP= not present; PtC= Ptc; ntc = NTC; PtM = Pt1000;OE2 Probe 2 calibration: (-12.0 – 12.0°C/ -21 – 21°F) allows to adjust possible offsets of the evaporator probe.P3C Probe 3 configuration: (nP Ptc ntc PtM) nP= not present; PtC = Ptc; ntc = NTC; PtM = Pt1000;OF3 Probe 3 calibration: (-12.0 – 12.0°C/ -21 – 21°F) allows to adjust possible offset of the probe 3.P4C Probe 4 configuration: (nP Ptc ntc PtM) nP = not present; PtC = Ptc ntc = NTC; PtM = Pt1000;OF4 Probe 4 calibration: (-12.0 – 12.0°C/ -21 – 21°F) allows to adjust possible offset of the probe 4.P5C Probe 5 configuration: (nP Ptc ntc PtM 420 5Vr) nP = not present; PtM= Pt1000; 420= 4 20 mA; 5 Vr = 0 – 5V ratiometricOF5 Probe 5 calibration: (-12.0 – 12.0°C/ -21 – 21°F) allows to adjust possible offset of the probe 5.P6C Probe 6 configuration: (nP Ptc ntc PtM) nP= not present; PtC = Ptc ntc = NTC; PtM = Pt1000;OF6 Probe 6 calibration: (-12.0 – 12.0°C/ -21 – 21°F) allows to adjust possible offset of the probe 6.PA4 Probe value at 4 mA or at 0 V: (-1.0 – P20 bar / -14 – PSI / -10 – P20 kPA*10) pressure value measured by probe at 4 mA or at 0 V (related to PrM parameter) Referred to Pb5P20 Probe value 20 mA or at 5 V: (PA4 – 50.0 bar / 725 psi / 500 kPA*10) pressure value measured by probe at 20 mA or at 5 V (related to PrM parameter) Referred to Pb5

SERVICE OTHERS

LCL Light on during cleaning mode (n, y)

FCL Fan on during cleaning mode (n, y)

MAP Map used during standard operation (1°M, 2°M, 3°M, 4°M) It sets the map

used by the controller among the four possible maps

MP1 Alternate Map enabled by digital input or Modbus command (1°M, 2°M,

3°M, 4°M) It sets the alternate map enabled by digital input or Modbus

command among the four possible maps

CLt Coling time percentage: it shows the effective cooling time calculated by

EC3-XM678D during regulation

tMd Time to next defrost: time before the next defrost if interval defrost is selected;

LSn L.A.N. section number (1 – 8) number of sections available in the L.A.N.

Lan L.A.N. serial address (1 – LSn) Identifies the instrument address inside local

network of multiplexed cabinet controller.

Adr RS485 serial address (1 – 247) Identifies the instrument address when

connected to a ModBUS compatible monitoring system.

br It sets the baud rate among: (96 = 9.6 bit/s; 192 = 19.2 bit/s)

EMU Previous versions emulation (2V8 , 3V8 , 4V2). It allows the controller to be

used in a LAN of controllers with previous versions:

2V8 = it emulates version 2.8

3V8 = it emulates version 3.8

4V2 = it emulates version 4.2

rEL Release software: (read only) Software version of the microprocessor.

SrL Software subrelease: (read only) for internal use

Ptb Parameter table: (read only) it shows the original code of the parameter map.

Pr2 Access to the protected parameter list (read only).

18. DIGITAL INPUTSThe EC3-XM678D series can support up to 3 free of voltage contact configurable digital inputs (depending on the models). They are configurable via i#F parameter

18.1 GENERIC ALARM (EAL)As soon as the digital input 1, 2, or 3 is activated the unit will wait for “d1d” or “d2d” or “d3d”time delay before signalling the “EAL” alarm message. The outputs status don’t change. The alarm stops just after the digital input is de-activated.

18.2 SERIOUS ALARM MODE (BAL)When the digital input is activated, the unit will wait for “d1d” or “d2d” or “d3d” delay before signalling the “BAL” alarm message. The relay outputs are switched OFF. The alarm will stop as soon as the digital input is de-activated.18.3 PRESSURE SWITCH (PAL)If during the interval time set by “d1d” or “d2d” or “d3d” parameter, the pressure switch has reached the number of activation of the “nPS” parameter, the “CA” pressure alarm message will be displayed. The compressor and the regulation are stopped. When the digital input is ON the compressor is always OFF. If the nPS activation in the d#d time is reached, switch off and on the instrument to restart normal regulation.18.4 DOOR SWITCH INPUT (dor)It signals the door status and the corresponding relay output status through the “odc” parameter: no = normal (any change); Fan = Fan OFF; CPr = CompressorOFF; F_C = Compressor and fan OFF. Since the door is opened, after the delay time set through parameter “d#d”, the door alarm is enabled, the display shows the message “dA” and the regulation restarts after rrd time. The alarm stops as soon as the external digital input is disabled again. With the door open, the high and low temperature alarms are disabled.18.5 START DEFROST (DEF)It executes a defrost if there are the right conditions. After the defrost is finished, the normal regulation will restart only if the digital input is disabled otherwise the instrument will wait until the “Mdf” safety time is expired.18.6 RELAY AUX ACTUATION (AUS)This function allows to turn ON and OFF the auxiliary relay by using the digital input as external switch.18.7 RELAY LIGHT ACTUATION (LIG)This function allows to turn ON and OFF the light relay by using the digital input as external switch.18.8 REMOTE ON/OFF (ONF)This function allows to switch ON and OFF the instrument.18.9 FHU NOT USEDThis function allows to change the kind of regulation from cooling to heating and viceversa.18.10 ENERGY SAVING INPUT (ES)The Energy Saving function allows to change the set point value as the result of the SET+ HES (parameter) sum. This function is enabled until the digital input is activated.18.11 MAP SWITCHING (NT)In this configuration, the digital input activates the map selected by the MP1 parameter. The “MAP CHANGE” ModBus command has higher priority compared to the digital input.18.12 CLEANING FUNCTION ACTIVATION (CLN)In this configuration, the digital input activates the CLEANING function. It can be activated only if the device is ON. This function has the following characteristics: · the display visualizes the “CLn” label · The light status depends on the LCL parameter (no/yes), however the light canbe modified both via button and ModBus command. · The fans status depends on the FCL parameter (no/yes), furthermore they arenot thermo-regulated (par.FST). The “CLEANING MODE” ModBus command has higher priority compared to the digital input.18.13 DEFROST END (DEN)The digital input ends the defrost cycle in progress. The drip time will follow the defrost end. A further defrost request with the digital input active won’t be managed.18.14 DIGITAL INPUTS POLARITYThe digital inputs polarity depends on “I#P” parameters: CL: the digital input is activated by closing the contact; OP: the digital input is activated by opening the contact.19. USE OF THE PROGRAMMING “HOT KEY”The XM units can UPLOAD or DOWNLOAD the parameter list from its own E2 internal memory to the “Hot Key” and vice-versa through a TTL connector.19.1 DOWNLOAD (FROM THE “HOT KEY” TO THE INSTRUMENT)1. Turn OFF the instrument by means of the ON/OFF key ,insert the “Hot Key” and then turn the unit ON.2. Automatically the parameter list of the “Hot Key” is downloaded into the controller memory, the “doL” message is blinking. After 10 seconds the instrument will restart working with the new parameters. At the end of the data transfer phase the instrument displays the following messages: “end” for right programming. The instrument starts regularly with the new programming. “err” for failed programming. In this case turn the unit off and then on if you want to restart the download again or remove the “Hot key” to abort the operation.19.2 UPLOAD (FROM THE INSTRUMENT TO THE “HOT KEY”)1. When the XM unit is ON, insert the “Hot key” and push “UP” key. 2. The UPLOAD begins; the “uPL” message is blinking. 3. Remove the “Hot Key”.At the end of the data transfer phase the instrument displays the following messages: “end ” for right programming. “err” for failed programming. In this case push “SET” key if you want to restart the programming again or remove the not programmed “Hot key”.

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20. TECHNICAL DATA

CH660 keyboard

Housing:

self-extinguishing ABS.

Case:

CH660 facia 38×80 mm; depth 18mm

Mounting:

panel mounting in a 29×71 mm panel cut-out

Protection:

IP20; Frontal protection: IP65

Power supply:

from EC3-XM678D power module

Display:

3 digits, red LED, 14,2 mm high;

Optional output:

buzzer

Power modules

Case:

8 DIN

Connections:

Screw terminal block 1,6 mm2

heat-resistant wiring and 5.0 mm Faston

Power supply:

24 VAC ± 10%

Power absorption:

20 VA max.

Inputs:

up to 6 NTC/PTC/Pt1000 probes

Digital inputs:

3 free of voltage

Relay outputs:

Total current on loads MAX. 16A

Solenoid Valve:

relay SPST 5(3) A, 250 VAC

defrost:

relay SPST 16 A, 250Vac

fan:

relay SPST 8 A, 250Vac

light:

relay SPST 16 A, 250Vac

alarm:

SPDT relay 8 A, 250Vac

Aux:

SPST relay 8 A, 250Vac

Valve output:

A.C. output up to 30W

Optional output (AnOUT) DEPENDING ON THE MODELS:

· PWM / Open Collector outputs: PWM or 12 VDC max 40 mA

· Analog output: 4 – 20 mA or 0 10 V

Serial output:

RS485 with ModBUS – RTU and LAN

Data storing:

on the non-volatile memory (EEPROM).

Kind of action:

1 B

Pollution degree:

Software class:

Operating temperature: 0 – 60 °C.

Storage temperature: -25- 60 °C.

Relative humidity:

20 – 85% (no condensing).

Measuring and regulation range:

NTC probe: -40 – 110°C (-58 – 230°F).

PTC probe: -50 – 150°C (-67 – 302°F)

Pt1000 probe: -100 – 100°C (-148 – 212°F)

Resolution:

0.1 °C or 1 °C or 1 °F (selectable).

Accuracy (ambient temp. 25°C): ±0.5 °C ±1 digit

21. DEFAULT SETTING VALUES

CODE M1rtc EEU SEt 2.0

M2 M3– – – – 2.0 -18.0

SEC Hy 2.0int 150 CrE LS -30 US 10 odS AC CCt CCSConCoFCF PrU PMUPMdrES Lod rEd dLy rPA rPb rP3 rP4 rP5 rPdrPE Fty Atu n AMS n SSH 6.0SHy 0.0Pb 8PbH 0.2rS 0 inC 220

LOC 2.0 2.0150 150n -30 -30 10 101 0 0.0 2.05

°CrE bArPrE

P1 P1 0 P1 nP nP nP nP rPA

100

448

6.0 6.0

0.2 0.2

0.0 0.0 220 220

M4 -18.0 2.0 150 -3010n n 6.0 0 8 0.2 0.0 220

MENUE PARAMETER DESCRIPTION

Pr1 Access to RTC submenu

Pr1 Access to EEV submenu

– – – Set point

– – –

LAN mode selection: Local or Global

Pr1 Differential

Pr2

Integral time for room temperature regulation

Pr2 Continuous regulation activation

Pr2 Minimum set point

Pr2 Maximum set point

Pr2 Outputs activation delay at start up

Pr2 Anti-short cycle delay

Pr2 Continuous cycle duration

Pr2 Continuous cycle set point

Pr2

Compressor ON time with faulty probe

Pr2

Compressor OFF time with faulty probe

Pr2

Measurement unit: Celsius, Fahrenheit

Pr2 Pressure Mode

Pr2 Pressure measurement unit

Pr2

Pressure displaying mode: temperature or pressure

Pr2

Resolution (only C): decimal, integer

Pr2 Local display: default display

Pr1 Remote display: default display

Pr2 Display delay

Pr2 Regulation probe A

Pr2 Regulation probe B

Pr2 Regulation probe 3

Pr2 Regulation probe 4

Pr2 Regulation probe 5

Pr2 Temperature Regulation Strategy

Pr2

Virtual probe percentage (rPd = rAb)

Pr2 Refrigerant gas type

Pr2 Regulator auto tuning

Pr2 Min stable Superheat search

Pr2 Superheat set point

Pr2

Differential for low superheat function

Pr2 Regulation proportional band

Pr2

Death band for superheat regulation

Pr2 Band Offset

Pr2 PID integration time

CODE M1 dFC 1 PEd PEO SFd SFP

M2 M3

50 0.3

40.0

OHG 45.0 45.0 45.0

Pdd

0.4

OPd

50.0

LnF 10.0 10.0 10.0

MnF 100 100 100

dCL

Fot

LPL

-0.5

MOP 4.5 4.5 4.5

dMP

LOP -0.5 -0.5 -0.5

dLP

dML 2.0 2.0 2.0

AAS

HSH

LSH

dHS

0.3

dLS

0.3

LSA

1.0

FrC

AnP 3 3

Ant 1 1

SLb 1 tEP tEU bdM HFS

nU bP

noM

FUL

LSt

USt

Est

CPPCHdGtCGtH dtY dPA dPbtdF ELEdF Srt Hyr tod d2P ndtE 8.0dtS 8.0idF 6 idE ndt 3 MdF 30 dSd dFddAdFdt 0

10 100 P2 nP

EL EL

150

2.0

255

8.0 8.0

30 30

M4 MENUE PARAMETER DESCRIPTION

Pr2 PID derivation constant time

Pr2

Delay before stopping regulation with probe error

Pr2 Probe Error opening percentage

Pr2 Duration of Soft Start phase

Pr2

Open percentage for soft start phase

45.0

Pr2

Open percentage for inversion defrost

Pr2 Duration for post defrost phase

Pr2

Open percentage for post defrost phase

10.0

Pr2

Minimum open percentage for stepper valve

100

Pr2

Maximum open percentage for stepper valve

Pr2

Regulation off delay, when the set point is reached 2

Pr2

Enable for forcing open valve to a fixed value

Pr2

Minimum value threshold of pressure for regulation

4.5

Pr2

Maximum value threshold of suction pressure

Pr2

Delay for high pressure alarm activation (MOP)

-0.5

Pr2

Minimum value threshold of suction pressure

Pr2

Delay for low pressure alarm activation (LOP)

2.0

Pr2

Opening steps variation during MOP and LOP

Pr2

Low superheat alarm with “XeCO2 function active

Pr2

Threshold for maximum superheat alarm

Pr2

Threshold for minimum superheat alarm

Pr2 Delay for high superheat alarm

Pr2 Delay for low superheat alarm

Pr2

Subtracting percentage with low superheat alarm

Pr2

Additional integration constant for fast recovery

Pr2

Number of average values for converted temperature (pressure)

Pr2

Number of average values for temperature

Pr2

Reaction time (interval for valve PID management)

Pr2 Predefined valve selection

Pr2 Kind of valve.

Pr2

Bipolar valve pilot mode: Wave Mode – Normal Mode

Pr2 Kind of motor movement

Minimum number of steps where

Pr2 the valve can be considered as completely closed.

Pr2

Maximum number of steps that can be performed.

Pr2 Extra steps in closing phase

Step rate: is the speed to change Pr2 step. A too high value causes awrong driving.

Pr2

Current per phase during bipolar valve driving.

Pr2

Current per phase to maintain the actual position (Holding current).

Pr2

Interval between cycles to reset the valve

Pr2 Autozero function

Pr2 Pilot duty

Pr2 Defrost probe A

Pr2 Defrost probe B

Kind of defrost: air, resistors, Pr2 inversion

Pr2 Defrost mode: Clock or interval

Pr2 Differential for heater

Pr2 Time out for heater (if temp > Srt)

Pr2 Defrost with two probes

8.0

Pr2

First defrost termination temperature

8.0

Pr2

Second defrost termination temperature

Pr2 Interval between defrosts

Pr2 Storage in eeprom defrost interval

Pr2 Minimum Defrost Time

Pr2 Maximum defrost duration

Pr2 Delay for defrost on call

Pr2 Visualization during defrost

Pr2

Visualization delay for temperature after defrost

Pr2 Dripping time

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CODE M1 M2 M3

dPo dAF Pdt Pdn Ctd 6

0.0

F-C

nbd 4.0 4

Mdb 16.0 16.0 16.0

nct -30 -30 -30

FAP FnC O-y Fnd 0

o-y o-n

FCt

FSt 15.0 15.0 2.0

FHy

1.0

tFE

Fod

Fon

FoF

trA

UAL

SOA

SdP

30.0

ASr

1.0

PbA

5.0

AMi

AMA

100

AMt

rAL

tEr

ALC

ALU 10 10 10

ALL -30 -30 -30

AHy

1.0

ALd 15 15 15

rA2

A2U 150 150 150

A2L -40 -40 -40

A2H

A2d 15 15 15

dAO 1.0 1.0 1.0

EdA

dot

Sti nu nu

Std 10 tbA oA5 oA6 CoM AOP

n ALr AUS Cur CL

iAU

i1P

i1F

dor

d1d

i2P

i2F

LiG

d2d

i3P

i3F

d3d

nPS

OdC

F-C

rrd

CbP

Hur

– – –

Min

– – –

dAY

– – –

Hd1

Hd2

Hd3

ILE

0.0

dLE

0.0

M4 MENUE PARAMETER DESCRIPTION

Pr2 Defrost at power ON

Pr2 Delay defrost after freezing

Pr2 Pump down type

Pr2 Pump down duration

Pr2 Differential for defrost start

Minimum Compressor run time

Pr2 before defrost

16.0

Maximum Compressor run time Pr2 before defrost

-30

Minimum coil temperature to trigger Pr2 a defrost

Pr2 Fan probe A

o-n Pr2 Fan operating mode

Pr2 Fan delay after defrost

Pr2

Temperature differential to avoid short cycles of fans

2.0

Pr2 Fan stop temperature

Pr2 Fan stop hysteresis

Pr2

Fan regulation by temperature in defrost

Pr2

Fan activation time after defrost (without compressor)

Pr2 Fan ON time

Pr2 Fan OFF time

Pr2 Kind of regulation with PWM output

Pr2 Fixed speed for fan

Pr2 Default Dew Point value

Pr2

Differential for fan / offset for antisweat heater

Pr2

Proportional band for modulating output

Pr2

Minimum output for modulating output

Pr2

Maximum output for modulating output

Pr2

1:Time with fan at maximum speed – 2:Tempo uscita on Cavi Caldi

Pr2 Probe for temperature alarm

Pr2

Temperature alarm configuration: relative / absolute

Pr2 High temperature alarm setting

-30 Pr2 Low temperature alarm setting

Pr2 Differential for temperature alarm

Pr2 Temperature alarm delay

Pr2 Probe for temperature alarm 2

150 Pr2 High temperature alarm 2 setting

-40 Pr2 Low temperature alarm 2 setting

Pr2 Differential for temperature alarm 2

Pr2 Temperature alarm delay 2

1.0

Pr2

Delay of temperature alarm at startup

Pr2 Alarm delay at the end of defrost

Pr2

Temperature alarm exclusion after door open

Pr2

Time for compressor ON before regulation break

Pr2

Time for compressor OFF for regulation break

Pr2 Silencing alarm relay with buzzer

Pr2 Relay 5 configuration

Pr2 Relay 6 configuration

Pr2 Modulating output configuration

Pr2 Alarm relay polarity

Pr2

Auxiliary output independent from ON/OFF state

Pr2 Digital input 1 polarity

Pr2 Digital input 1 configuration

Pr2 Digital input 1 activation delay

Pr2 Digital input 2 polarity

Pr2 Digital input 2 configuration

Pr2 Digital input 2 activation delay

Pr2 Digital input 3 polarity

Pr2 Digital input 3 configuration

Pr2 Digital input 3 activation delay

Pr2 Pressure switch number

Pr2

Compressor and fan status when open door

Pr2

Outputs restart after door open alarm

Pr2 Clock presence

Pr1 Current hour

Pr1 Current minutes

Pr1 Current day

Pr1 First weekly day

Pr1 Second weekly day

Pr1 Third weekly day

Pr1

Energy saving cycle start during workdays

Pr1

Energy saving cycle length during workdays

CODE M1ISEdSEHESLd1Ld2Ld3Ld4Ld5Ld6Sd1 Sd2 Sd3 Sd4 Sd5 Sd6HESPELLMd dEM LSPLdSLOF LLi LAU LES LSd LPP LCPStMACEP1C OF1 P2C OF2 P3C OF3 P4C OF4 P5C OF5 P6C OF6 PA4 P20 LCL FCL MAPMP1 AdrbrEMUrEL SrL Ptb Pr2

M2 M30.00.00.06.013.021.0nununu6.0 13.0 21.0 nu nu nu0.0ny y nnn y n n n y nnnntC 0.0 ntC 0.0 nP 0.0 nP 0.0 420 0.0 PtM 0.0 -0.5 11.0 y y 1°M1°M196nu5.4 321

M4 MENUE PARAMETER DESCRIPTION

Pr1

Energy saving cycle start during holidays

Pr1

Energy saving cycle length during holidays

Pr2

Temperature increasing during Energy Saving

Pr1 Workdays First defrost start

Pr1

Workdays Second defrost start (minimum as Ld1)

Pr1

Workdays Third defrost start (minimum as Ld2)

Pr2

Workdays Fourth defrost start (minimum as Ld3)

Pr2

Workdays Fifth defrost start (minimum as Ld4)

Pr2

Workdays Sixth defrost start (minimum as Ld5)

Pr1 Holidays First defrost start

Pr1 Holidays Second defrost start

Pr1 Holidays Third defrost start

Pr1 Holidays Fourth defrost start

Pr1 Holidays Fifth defrost start

Pr1 Holidays Sixth defrost start

Pr2

Temperature increasing during Energy Saving

Pr2

Energy saving activation when Light switched off

Pr2 Defrost Synchronisation

Pr2 Defrost end Synchronisation

Pr2 SET-POINT Synchronisation

Pr2

Display Synchronisation (temperature sent via LAN)

Pr2 ON/OFF Synchronisation

Pr2 Light Synchronisation

Pr2 AUX Synchronisation

Pr2 Energy Saving Synchronisation

Pr2 Remote probe displaying

Pr2 Pressure value sent in LAN

Pr2 P4 probe sent via LAN

Pr2

Cooling request from LAN enable compressor relay

Pr2

Cold Calling in LAN always enabled even if the compressor block

Pr2 P1 configuration

Pr2 P1 calibration

Pr2 P2 configuration

Pr2 P2 calibration

Pr2 P3 configuration

Pr2 P3 calibration

Pr2 P4 configuration

Pr2 P4 calibration

Pr2 P5 configuration

Pr2 P5 calibration

Pr2 P6 configuration

Pr2 P6 calibration

Pr2 Probe value at 4 mA or/at 0 V (P5)

Pr2 Probe value at 20 mA or/at 5 V (P5)

Pr2 Light on during cleaning mode

Pr2 Fan on during cleaning mode

Pr2 Map selection

Pr2

Map selection loaded by digital input

Pr1 Modbus address

Pr2

Baud Rate selection for ModBus: 9600 or 19200

Pr2

Emulation previous version: 2V8, 3V8, 4V2

Pr2 Release code firmware (only read)

Pr2 Sub-release firmware (only read)

Pr2 Map EEPROM ID

Pr1 Password

Emerson Climate Technologies GmbH Am Borsigturm 31 I 13507 Berlin I Germanywww.climate.emerson.com/en-gb

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References

HVACR Technology and Infrastructure Solutions | Emerson GB

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Posted

2023-01-20

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