Specifications

20
INV2500 & INV5000 SERIES
OPERATING MANUAL
18.0 TROUBLESHOOTING GUIDE
18.1 If you encounter difficulty in getting the inverter(s) to operate, go through the
following troubleshooting guide.
18.2 Table 18-1. Inverter Troubleshooting Guide
18.3 If none of the above actions solves the problem, call UNIPOWER Telecom at
954-346-2442 Ext. 400 for help.
Input OK LED does Bad connection to input Check the connection to battery; check
not come on. battery; input breaker not battery voltage; check that input breaker is on.
on.
Sync OK LED does Bad connection to sync Check that sync connection has been made
not come on for terminals. to all paralleled inverters; check the BNC
paralleled inverters. connectors.
No AC output; Bad output connection; Check output connection to load; check that
Output OK LED output breaker not on. output breaker is on; check that AC
does not come on. distribution breakers are on.
No AC output. Short circuit or overload Remove short circuit or overload. Turn off
Output OK LED on output. input and output circuit breakers. Turn
is off. input circuit breaker back on, wait for the
Output OK LED to come on, then turn the
output circuit breaker on.
No output. Both Input battery voltage is Check battery voltage. Recharge battery or
circuit breakers on. below range. install new battery. Turn the inverter back on.
Input and Output OK
LEDs off.
SYMPTOM POSSIBLE CAUSES ACTION TO TAKE