Trouble Shooting In Else Cases - CyberPower OLS6000E User Manual

DC short
DC Over
DC Under
DC Unbalance
DC soft fail
Output soft fail
Output Volt low
Output volt high

7.3. Trouble Shooting in Else Cases

Problem
No indication, no warning
tone even though system
is connected to mains
power supply
BYPASS LED light up
even though the power
supply is available
BATTERY LED lights
up, and audible alarm
sounding every 1 beep
in every 4 seconds
Emergency supply
period shorter than
nominal value
Please have the following information at hand before calling the After-Sales Service
Department:
1) Model number, serial number.
Bus short
Bus Over Voltage
Bus Under Voltage
Bus Unbalance
Bus Soft start fail
Output Soft start fail
Output Volt low
Output volt high
Possible cause
No input voltage
Inverter not switched
on
Input voltage and/or
frequency are out of
tolerance
Batteries not fully
charged / batteries
defect
Consult dealer
Consult dealer
Consult dealer
Consult dealer
Consult dealer
Consult dealer
Consult dealer
Consult dealer
Check the building wiring and input
cable;
Check if the input breaker is closed.
Press button
Check input power source;
Check the building wiring and input
cable;
Check if the input breaker is closed.
Charge the batteries for at least
12 hours and then check capacity.
29
Remedy
to turn on UPS.