GP-PWM-30-SB Error Codes

 

OVER VOLTAGE

 

 

If the GP-PWM-30-SB experiences a battery over-voltage (15.5V), the controller will stop operating, and the display will begin to flash with all icons. The controller will resume operating when the error is cleared.

 

Icons Displayed: All symbols

 

LOW VOLTAGE

 

If the battery voltage reaches 11 volts, the battery SOC symbol will show the text “LOW” beneath it. The controller will continue operating in this condition and will only stop operating if the voltage drops below 9 volts.

 

Icons Displayed: Battery SOC Symbol, LOW

 

Display Reading: Blank

Time of Day: Daytime/Nighttime

 

Possible Causes:

Battery or fuse connection and/or solar array connection

(Daytime only) or battery or fuse connection (Nighttime only).

 

How to tell:

 

1. Check the voltage at the controller battery terminals with a voltmeter and compare with a voltage reading at the battery terminals.

2. If there is no voltage reading at the controller battery terminals, the problem is in the wiring between the battery and the controller. If the battery voltage is lower than 6 volts the controller will not function.

3. For the solar array, repeat steps 1 and 2 substituting all battery terminals with solar array terminals.

 

Remedy:

Check all connections from the controller to the battery including checking for correct wire polarity. Check that all connections are clean, tight, and secure. Ensure the battery voltage is above 6 volts.

 

Display Reading: Nighttime

Time of Day: Daytime

 

Possible Causes:

Panel is covered by something; PV panel is too dirty to supply a high enough voltage to charge the battery; the PV panel is not connected.

 

Remedy:

Check the panel to ensure it is not obscured. Clean the panel if it is dirty. Check that PV cables are connected to the controller.