3Com Powerware Uninterruptible Power System Prestige Series Installation And Operator's Manual page 78

Troubleshooting
Condition
Communications do not
function properly.
No output load voltage.
OVERLOAD
SITE FAULT
OVERTEMP
BATTERY
SELF TEST
OVERLOAD
OVERTEMP
BATTERY BATTERY
72 Powerware
Possible Cause
Incorrect communications
cabling.
Incorrect baud rate.
Incorrect communication mode.
Load plug(s) not fully seated.
Load circuit protectors tripped.
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.
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.
Weak battery while in Normal
mode. The alarm beeps.
Battery breaker is open (O).
Battery cabinet is not properly
connected to the UPS.
Prestige Series Installation and Operator's Manual for IBM Applications (3000 VA) Uncontrolled Copy
®
Action
Verify cable integrity (see page 64).
Select a new baud rate (see page 63).
Select a new communication mode
(see Chapter 5).
Verify load plug(s) are fully seated.
Reset load protectors.
Your UPS continues to operate.
Reduce load.
Reduce load.
If the Overload indicator remains lit,
reset the UPS by pressing the
Output On button until the alarm
|
beeps.
You may need to obtain a larger
capacity UPS.
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 67).
Shut down the UPS. Clear vents.
Remove any heat sources. Wait
approximately 5 minutes and retry.
Contact your service representative if
condition persists.
Allow the battery to charge for
24 hours, then retest. Have batteries
replaced if condition persists.
Verify that the battery cabinet breaker
is in the ON ( ) position.
|
Verify that the battery cords are
connected.