How to use the GP-PWM Solar Controller 10-FM
When the GP-PWM-10-FM is connected to the battery, the controller will go into Power Up mode.
Icons Displayed: All segments of the numerical display; backlight blinks. Depending on the battery voltage when the GP-PWM-10-FM Power Up occurs, the controller may do a Boost Charge or quickly go into Float Charge. The Charging Profile selected will commence the following day after a Power Up (refer to the Charging Profile Chart on page 11 for more details).
Setting the Battery Charging Profile
To select the battery charging profile, press and hold the B Button. This will cause the current battery type to flash.
Then, press the B Button to toggle through the profile options: Sealed/Gel, AGM/LiFePO4 or Flooded.
To confirm the battery profile, press and hold the A Button for 3 seconds.
Any settings made on the GP-PWM-10-FM will be saved even when the power has been disconnected from the controller.
Refer to the Battery Charge Profile Chart below for details on each profile.
NOTE: If PV power is insufficient or too many loads are drawing power from the battery, the controller will not be able to charge the battery to the target charging voltage.
Auto Equalize: The GP-PWM-10-FM has an automatic equalize feature that will charge and recondition your batteries at least once a month at a higher voltage to ensure that any excess sulfation is removed.
NOTE: This mode should not be entered unless you are using a flooded battery.
Viewing the Controller Display Information
To toggle between Battery Voltage, PV Charging Current, Battery State of Charge (SOC), and ampere hours charged since last reset, press the B Button.
|Push the B Button to show the battery voltage. Icons Displayed: Battery SOC, Volt Symbol (V)
|Push the B Button to show the PV charging current. Icons Displayed: Ampere Symbol (A), Battery SOC
|Push the B Button to show the battery state of charge (shown as a percentage). Icons Displayed: Battery SOC, Percent Symbol (%)
|A value of 100% will only be displayed after a Boost or Equalize charge completes.
|Push the B Button to show the number of amp hours charged since the last reset. Icons Displayed: Amp hours charged, Amp hour symbol (Ah) or kiloamp hour symbol (kAh)
Resetting the Ampere Hours Charged
|To reset the count of ampere hours charged, toggle to the ampere hours charged. Press and hold the A Button for 6 seconds to reset the counter to zero.