Troubleshooting

4.0TROUBLESHOOTING

4.1Active Alarms

In the event of an alarm, the User Interface LCD will display the last message regardless of the default screen. A list of possible alarm messages is displayed below. If you encounter one of these or other alarm messages and are unsure of the corrective action to take, please contact a qualified Lie- bert representative at the number listed on the back of this manual.

User Interface Text

Cause

Action

 

 

 

Main Control Failure

The Nfinity system has detected a

Identify and replace the failed System Control Module or

 

System Control Module failure.

contact Liebert Global Services for support.

Power Module Fail

The Nfinity system has detected a Power

Identify and replace the failed Power Module or contact

 

Module failure.

Liebert Global Services for support.

Battery Module Fail

The Nfinity system has detected a Battery

Identify and replace the failed Battery Module or contact

 

Module failure.

Liebert Global Services for support.

Redun. Control Fail

The Nfinity system has detected a

Identify and replace the failed System Control Module or

 

System Control Module failure.

contact Liebert Global Services for support.

Battery Card Failure

The Nfinity system has detected an

Identify and replace the failed Intellislot Battery Card or

 

Intellislot Battery Card failure.

contact Liebert Global Services for support.

UPS On Battery

The Nfinity is drawing power from the

Verify input breaker is closed. Verify input voltage is

 

batteries, not from utility.

present and correct voltage. Verify input frequency is

 

 

correct.

Reminder alarm -

The fan filter reminder time has elapsed.

Check and clean the fan filter and acknowledge the alarm.

Check air filter

 

This alarm may be disabled or the interval between these

 

 

alarms can be configured via the User Interface.

Short Circuit

User tried to turn the output on following a

Wait for at least 30 seconds and then turn the output on.

Recovery - Please

short circuit on the output without waiting

 

Wait

for the required 30 seconds to expire.

 

Power Module N+1

Number of power modules is not

Reduce the UPS’s load, add power modules to the frame

Redundancy Alarm

adequate to provide power redundancy.

or disable the alarm feature via the User Interface.

Output Off - Output

A short circuit was detected on the output.

Correct short (or extreme overload condition) and turn on

Short Circuit

 

the UPS’s output.

UPS Output

The load on the Nfinity exceeded the

Reduce the UPS’s load or add power modules.

Overload

capacity of the active power modules.

 

Output exceeds

This will occur if the max load alarm is

Reduce the UPS’s load, increase the Maximum Load

max load setting

enabled, and the measured load at the

Alarm limit via configuration or disable the Maximum Load

 

UPS’s output is greater than the value

Alarm limit via configuration.

 

set.

 

Output Off-

Normally a severe overload will cause the

Reduce the UPS’s output load and verify that the UPS’s

Overload, bypass

unit to go to automatic bypass. This event

bypass source is qualified (amplitude and frequency).

unavailable

informs the user that bypass was not

Verify that the configuration voltage and frequency

 

qualified so the unit dropped the load to

settings are properly selected.

 

protect itself.

 

Switch To

The Nfinity is on automatic bypass.

Transfer Nfinity to manual bypass and call Liebert service

Manual Bypass

Manual bypass switch should be

for assistance.

 

activated before servicing.

 

Load Exceeds

The measured load on the output will

Reduce the UPS’s load or add battery capacity. If external

Battery Module

cause the battery modules to exceed their

non-modular battery cabinet(s) are added, verify that the

Capacity

limits if the UPS transfers to battery

UPS’s configuration is set to match the external battery

 

mode.

amp-hour rating and charger rating.

Bypass source

The input voltage is not within the

Verify UPS’s configuration for voltage and frequency.

not qualified

specified voltage or frequency range so

Check UPS’s input breaker; disable this alarm if desired

 

the UPS will not allow an automatic or

via configuration.

 

manual transfer to bypass.

 

Load exceeds

Load is greater then the rated frame limit.

Reduce the UPS’s load.

frame limit

 

 

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