1. Installation Overview
1.1 Introduction
A Solar Controller (or Charge Controller / Regulator) is an essential component of your
photovoltaic solar system. The Controller maintains the life of the battery by protecting
it from overcharging. When your battery has reached a 100% state of charge, the
Controller prevents overcharging by limiting the current flowing into the batteries from
your solar array.
The GP-PWM-30 is a 12-volt flush mounted photovoltaic (PV) charge controller rated
for a continuous solar current input of 30 amps. The GP-PWM-30 uses Pulse Width
Modulation (PWM) technology and a unique four stage charging system that includes an
automatic equalize setting to charge and protect your battery bank (for flooded batteries
only). The GP-PWM-30 features an LCD digital display that shows the charge current
of the solar array, system battery voltage and battery capacity. The GP-PWM-30 also
features Maximum Power Boost Technology™ for manual bulk charge at any stage
of the charge cycle.
page 3
