Eaton Powerware Prestige Series 1500 VA Installation And Operator's Manual page 86

Troubleshooting
Condition
Communications do not
function properly.
OVERLOAD
SITE FAULT
OVERTEMP
BATTERY
SELF TEST
OVERLOAD
SITE FAULT
OVERTEMP
74 Powerware Prestige Series Installation and Operator's Manual for IBM Applications (650 VA - 1500 VA) Uncontrolled Copy
®
Possible Cause
Incorrect communications
cabling.
Incorrect baud rate.
Incorrect communication mode.
Power requirements exceed UPS
capacity. If overload is greater
than 105%, the alarm beeps
every second and the UPS may
switch to Bypass mode.
The UPS switched to Bypass
mode because the overload
increased (above 105%). The
alarm beeps.
Building wiring is out of
specification. The UPS checks
the utility power source during
startup for reversed neutral and
line conductors. The alarm
beeps.
The utility line voltage and
frequency are out of
specification.
UPS internal temperature is too
high. The alarm beeps and the
UPS switches to Bypass mode
for approximately 10 minutes,
allowing the UPS to cool down.
Action
Verify cable integrity (see page 66).
Select a new baud rate (see page 65).
Select a new communication mode (see
Chapter 5).
Your UPS continues to operate.
Reduce load.
Reduce load.
If the Overload indicator remains lit, reset
the UPS by pressing the Output
button until the alarm beeps.
You may need to obtain a larger capacity
UPS.
Have site wiring tested. Repair as required.
The inverter remains online, deriving
power from the utility until it is no longer
acceptable.
Check the unit configuration.
Refer to the product specifications (see
page 69).
Shut down the UPS. Clear vents. Remove
any heat sources. Wait approximately
5 minutes and retry.
Contact your service representative if
condition persists.
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