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Troubleshooting7
Lucent Technologies Model 3000 UPS Operator's Manual (167Ć405Ć119 Issue 3)
58
ActionPossible CauseCondition
No output load voltage.
Load plug(s) not fully seated. Verify load plug(s) are fully seated.
Load circuit protectors tripped. Reset load protectors.
OVERLOAD
I1
I2
I3
OUTPUT ON
Power requirements exceed UPS
capacity. If overload is greater
than 105%, the alarm beeps
every second and the UPS may
switch to Bypass Mode.
Your UPS continues to operate.
Reduce load.
OVERLOAD
I1
I2
I3
OUTPUT ON
The UPS switched to Bypass
Mode because the overload
increased (above 105%). The
alarm beeps.
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.
OVERLOAD
I1
I2
I3
OUTPUT ON
The utility line voltage and
frequency are out of
specification.
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 53).
OVERLOAD
I1
I2
I3
OUTPUT ON
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.
Shut down the UPS. Clear vents.
Remove any heat sources. Wait
approximately 5 minutes and retry.
Contact your service representative if
condition persists.
OVERLOAD
I1
I2
Weak battery while in Normal
Mode. The alarm beeps.
Allow the battery to charge for
24 hours, then retest. Have batteries
replaced if condition persists.
I3
OUTPUT ON
Battery breaker is open (O). Make sure the battery module breaker
is in the ON (
| ) position.
Battery module is not properly
connected to the UPS.
Make sure battery cords are
connected.