Grape Solar PWM Charge Controller User Manual
Please review this manual thoroughly before installation.
Grape Solar reserves the right to change contents in this manual without notice.Version 04.09.20
Product Features
- 72V and 24V battery auto-recognition,
- Pre-set charging modes for sealed, gel, flooded lead-acid deep cycle batteries and a customizable mode for lithium-ion batteries users.
- Three-stage charging with periodic equalization cycle prevents battery sulfation and enhances battery service life.
- Wide range of DC load control modes provide maximum flexibility in running DC loads.
- Built-in protection from common errors such as battery overcharge, battery over-discharge, overload, short-circuit and reverse polarity,
- TVS lightning protection for grounded circuits.
Device Diagram
LCD Display Interface Overview
Entering SET Mode
Use the keys located underneath the LCD screen to enter/exit SET mode.
LCD Display Cycles
•View ModeBrowse through different views of system status by short pressing the Set key.
• Battery Type SET ModeOn any view page (except Load Mode view page), long press the Set key to enter SET mode. Flooded, sealed and GEL batteries have pre-set programs, while lithium battery mode allows for more in-depth user customization.
• DC Load Management SET ModeOn the Load Mode view page, long press the Set key to enter SET mode. Choose from 18 pre-set load programs.
After 72 seconds of inactivity, the controller will resume to display battery voltage.
DC Load Modes
• Dusk to Dawn (Mode O)Load turns on 10 minutes after daylight not detected.
Timed Load (Mode 1-14)Load turns on 10 minutes after daylight not detected, stays on for X hours.
• Manual Load (Mode 15)Press the light control key on the controller to turn load on/off.
• Turn Off Load (Mode 16)Load will stay off in this mode.
• Always On (Mode 17)Load will stay on as long as connected battery is above 11V.
• USB PortsThe USB ports will always stay on in all modes.
Battery Type & Parameter Settings
Error Code Chart
- Contact Grape Solar for live technical support on additional troubleshooting.
Controller Specification
The variable fln” is adopted as a multiplying factor when calculating parameter voltages, the rule for fln” is listed as: if battery voltage is 12V, n=l; 24V, n=2.
Product Dimension
Product Dimension: 159’118’59 mm/ 6.3*4.6’2.3 inInstallation Area Dimension: 148’75 mm/ 5.8’3.0 inInstallation Hole Size: 0 4.5 and 0 7 mm/ 0 0.18 and 0 0.28 in
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