Operator`s manual

4. Turn on the input circuit breaker.
The LCD displays RETRAN, then shows LINE, or BUCK or BOOST. The status LED turns
on.
Turn On Finished
3.1.2 Turn Off
1. Turn off the input circuit breaker.
2. Turn off the battery circuit breaker.
The status LED is off and the LCD panel is blank.
Turn Off Finished
LED Descriptions
LED Description
GREEN OFF The UPS’s inverter is turned off. Line power goes straight to the load.
GREEN ON The UPS is turned on. Line power is provided to the load.
GREEN FLASHING The UPS’s inverter is on. Backup battery power is provided to the load.
RED ON OR FLASHING The UPS has a malfunction. See the troubleshooting table below.
Troubleshooting
SYMPTOM Action
NO OUTPUT POWER Is utility power connected?
Is the battery fuse installed?
Are the batteries discharged?
Is the input circuit breaker open?
1.
2.
3.
4.
NO BATTERY BACKUP
POWER
Is the battery fuse connected or is it blown?
Are the batteries discharged?
1.
2.
NO POWER TO LOAD Is the UPS’s output properly connected to the load?
Is the battery fuse connected or is it blown and is the utility power connected to UPS’s input
connector?
1.
2.
NOTE: If you have the RS-232 computer communication enabled, then you can perform additional tasks such as communicating,
monitoring, adusting and programming. See Section 4 for details.
Figure 3.1
Novus Micro Operator’s Manual
Doc# 017-221-B0 Rev 03/07 22