Installation Guide

5.0 LED INDICATORS

REEN

LED:

The green LED indicator will light whenever sunlight is avail-

able for battery charging. The green LED will turn off at night.

Because the SunLight uses a PWM constant voltage charging

process, there is usually some amount of energy going into the

battery at all times. Although the charging current falls to very

low levels when the battery reaches full charge, the green LED

will continue to stay ON all day. This is to indicate that the

controller is working and that energy is available from the PV

array for charging.

LED:

The red LED is an indicator for 3 different functions:

• Automatic low voltage load disconnect (LVD)

If the battery charge state falls below the LVD setpoint, the light

will be disconnected and the red LED will light. This indicates the

controller has disconnected the load to protect the battery from

further discharge and possible damage. The red LED will turn off

when the battery recovers to about 50% of its rated capacity and

the load is automatically reconnected.

• Initial controller start-up

When the SunLight is properly connected to the battery, the red

LED will flash 3 times.

• Confirm lighting control selection

When the TEST button is pressed, the red LED will confirm the

lighting control option selected by the rotary switch (Refer to

Section 7.2).

6.0 INSTALLATION INSTRUCTIONS

6.1 R

ATINGS AND

IMITS

• The SunLight is rated for 12 volt (or 24 volt) PV systems. Do not

connect to a PV array with open circuit voltage (Voc) greater than

30 volts (or 50 volts).

• Maximum array short circuit current rating is 12.5 amps and

25 amps.