User Manual

[page 36] | gpelectric.com
4.7 HIPOT TESTING
The GP-SW1500-TS uses two 55VAC lines to create 110VAC much like how 240VAC is creat-
ed using two 120VAC lines in a house. To accomplish this the neutral line must be bonded to
the ground, however, this causes problems during HIPOT testing. For this reason, the neutral
to ground bonding is done using a screw that is externally accessible so it can be removed.
The screw is installed when the unit is delivered to the dealer and is located on the side of the
inverter next to the chasses ground lug as shown in the image below.
4.8 TROUBLESHOOTING
Problems and Symptoms Possible Cause Solutions
Power status red light is
blinking fast.
Over input voltage. (OVP)
Check input voltage.
Reduce input voltage.
Power status red light is
Blinking slowly.
Low input voltage. (UVP)
Recharge battery. Check
connections and cables.
Power status red light is
blinking Intermittently.
Thermal shut-down. (OTP)
Improve ventilation. Make sure
ventilation, shafts of the inverter
are not obstructed. Lower
ambient temperature.
Power status is solid red
Short circuit.
Wiring error.
Over Loading (OLP).
Check AC wiring for short circuit.
Reduce load.
OPERATION
The inverter is HIPOT tested at the fac-
tory, but if another HIPOT test must be
done the screw must be removed from
the inverter for the test and re-installed
after the test.