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Grape Solar PWM Charge Controller User Manual

Grape Solar PWM Charge Controller User ManualGrape Solar PWM Charge Controller

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

Grape Solar PWM Charge Controller - Device Diagram

LCD Display Interface Overview

Grape Solar PWM Charge Controller - LCD Display Interface Overview

Entering SET Mode

Use the keys located underneath the LCD screen to enter/exit SET mode.

Grape Solar PWM Charge Controller - Entering SET Mode

LCD Display Cycles

•View Mode
Browse through different views of system status by short pressing the Set key.

• Battery Type SET Mode
On 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 Mode
On the Load Mode view page, long press the Set key to enter SET mode. Choose from 18 pre-set load programs.

Grape Solar PWM Charge Controller - LCD Display Cycles

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 Ports
The [email protected] USB ports will always stay on in all modes.

Grape Solar PWM Charge Controller - DC Load Modes Table

Battery Type & Parameter Settings

Grape Solar PWM Charge Controller - Battery Type & Parameter Settings

Error Code Chart

Grape Solar PWM Charge Controller - 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.

Grape Solar PWM Charge Controller - Controller Specification

Product Dimension

Grape Solar PWM Charge Controller - Product Dimension

Product Dimension: 159’118’59 mm/ 6.3*4.6’2.3 in
Installation Area Dimension: 148’75 mm/ 5.8’3.0 in
Installation Hole Size: 0 4.5 and 0 7 mm/ 0 0.18 and 0 0.28 in

Documents / Resources

Grape Solar PWM Charge Controller [pdf] User Manual
PWM Charge Controller, GS-COMET-PWM-40BT
Grape Solar PWM Charge Controller [pdf] User Manual
PWM Charge Controller, GS-COMeT-PWM-40BT

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