Troubleshooting

 

 

 

User Interface Text

Cause

Action

 

 

 

Assert manual

A user-initiated transfer to bypass will

Engage the manual bypass switch (located at the bottom

bypass

assert this alarm, instructing the user to

front on the left hand corner of the unit). Once engaged,

 

enable the manual bypass switch. Once

the switch may be de-asserted to return to normal

 

the manual bypass is asserted, the alarm

operation.

 

will clear. This is a non-mutable alarm.

 

Remote shutdown

The most likely cause is that the incorrect

Check for a wiring problem to the Shutdown On Battery at

on COM port 1

cable has been connected to the COM

the COM1 connector. If this problem is not addressed, the

active

port between the UPS and the host.

unit will shut down shortly after switching to battery

 

 

operation.

Battery Test

The battery was determined to be weak

Depending on the age of the batteries, it may be

Weak Battery

as a result of the battery test.

appropriate to replace all batteries in the system.

 

 

Schedule a battery test so that the system operation is

 

 

double-checked once the batteries become fully charged.

Battery Test

One or more of the following was

Replace the battery modules that have active failures/

Failure

detected during a battery test:

warnings. Depending on the age of the batteries, it may be

 

• UPS output regulation failure was

appropriate to replace all batteries in the system.

 

detected.

Schedule a battery test so that the system operation is

 

• A battery module warning or failure

double-checked once the batteries become fully charged.

 

occurred.

 

 

• A system control failure occurred.

 

Battery Cabinet

This is intended to detect a situation

Check that the Modular Battery breaker is closed. Verify

Not Connected

where a Modular battery cabinet has

proper connections between UPS and Modular Battery

 

been connected for communication, but

Cabinet.

 

the power busses are not connected.

 

Don’t Remove SC

The only good System Control Module

• Lower the lock lever on the System Control Module.

 

lock lever was raised with the output on

• Provide qualified bypass power so that transfer to

 

and the unit is not on bypass.

bypass is possible.

 

 

• Add a redundant System Control Module so that the load

 

 

is not dropped.

Failure: Select

The System Controller detected a failure.

Transfer UPS to manual bypass and contact Liebert

Manual Bypass

Select manual bypass so that the unit can

Global Services.

 

be serviced.

 

Output Off -

This event informs the user that bypass

Verify that the UPS’s bypass source is qualified (amplitude

bypass unavailable

was not qualified so the unit dropped the

and frequency). Verify that the configuration voltage and

 

load to protect itself.

frequency settings are properly selected.

Last UPS Shutdown

REPO switch was pressed.

If REPO wasn’t pressed, check for REPO wiring problems.

By Emergency

 

 

Power Off

 

 

External Battery

The energy delivered from the Non-

Verify proper connections between UPS and Non-Modular

Module Warning

Modular battery did not meet

Battery Cabinet. Reenter the amp-hour rating for the

 

programmed battery capacity.

external battery (set the amp-hour entry to zero and press

 

 

the return key, then reset it to the appropriate value for the

 

 

external battery). If the problem persists, the external

 

 

battery should be replaced.

Battery Module

A battery module is not ready. In most

Ensure that the battery module is fully seated and the 1/4

Not Ready

cases, one or more battery modules

turn fastener is engaged. If the problem persists, replace

 

should indicate a warning/failure

the battery module with warning/failure condition indicated

 

condition.

at the User Interface. If no User Interface warning/failure

 

 

of battery module, look for the battery module with LEDs

 

 

indicating a problem and replace that unit.

Power Module

A power module is not ready. In most

Ensure that the power module is fully seated and the 1/4

Not Ready

cases, one or more power modules

turn fastener is engaged. If the problem persists, replace

 

should indicate a warning or failure

the power module with warning/failure condition indicated

 

condition.

at the User Interface. If no User Interface warning/failure

 

 

of power module, look for the power module with LEDs

 

 

indicating a problem and replace that unit.

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