Operation

Table 7

Alarms, functions, and corrective actions (continued)

 

 

 

 

 

 

 

 

 

 

Actual

 

 

 

 

 

 

 

 

Alarm/fault

 

 

 

 

 

 

 

 

Name

 

 

 

 

 

 

 

 

Displayed

 

Description

Fault

 

 

 

 

 

On Front

 

of Alarm/

Or

Latch

Dial

Freeze

Event Log

 

Panel

 

Fault

Alarm

Mask

Mask

Mask

Mask

Meaning and Corrective Action(s)

 

 

 

 

 

 

 

 

A fault in the designated Fan motor has

 

 

 

 

 

 

 

 

occurred. This condition only causes an

 

 

 

 

 

 

 

 

alarm, but if not promptly corrected it could

System Fan

 

System Fan

Alarm

NO

YES

NO

YES

cause an equipment over-temperature

Fail

 

Fail

condition that would shut down the UPS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Module. Check the Fans for proper

 

 

 

 

 

 

 

 

operation. Contact Liebert Global Services

 

 

 

 

 

 

 

 

to replace a fan.

 

 

 

 

 

 

 

 

During start up the EPO switch is sensed as

 

 

 

 

 

 

 

 

being activated. Startup is inhibited until the

EPO Latched

EPO Latched

Alarm

NO

NO

NO

YES

alarm is cleared. Clear the latched EPO via

 

 

 

 

 

 

 

 

the push-button switch located on the

 

 

 

 

 

 

 

 

SWGR Board, then perform start up.

 

 

 

 

 

 

 

 

The UPS output is not synchronized to the

 

 

 

 

 

 

 

 

bypass power source, the static bypass

 

 

 

 

 

 

 

 

switch is disconnected, or it has failed

 

 

 

 

 

 

 

 

internally. Emergency and overload transfer

SBS

 

SBS Unable

Alarm

NO

NO

NO

YES

to the bypass source is not available. If the

 

module does not have a manual disconnect

Unable

 

 

 

 

 

 

 

 

switch, open and re-close the static switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

fuseholder. If the alarm conditions are

 

 

 

 

 

 

 

 

automatically corrected, reset the alarm to

 

 

 

 

 

 

 

 

clear it. Contact Liebert Global Services if

 

 

 

 

 

 

 

 

the alarm stays on.

Transfer To

 

Transfer To

Alarm

YES

YES

NO

YES

Shows after a successful transfer to

Byp OK

 

Bypass OK

Bypass. Display is only momentary.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Occurs on systems with multiple battery

 

 

 

 

 

 

 

 

cabinets. Indicates that at least one battery

Low batt

 

Reduced

 

 

 

 

 

breaker is on and one or more battery

 

Battery

Alarm

YES

YES

NO

YES

breakers in the string are off. In this state,

capacity

 

 

Capacity

 

 

 

 

 

the calculations for battery time remaining

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and End of Discharge are adjusted

 

 

 

 

 

 

 

 

accordingly.

Inv Off by

 

 

 

 

 

 

 

The User has turned the inverter off through

 

Inv Off by User

Alarm

YES

YES

NO

YES

the front panel. Puts data into the event

User

 

 

 

 

 

 

 

 

history log.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

With the battery breaker closed, the UPS

 

 

 

 

 

 

 

 

has determined that the DC bus voltage

Batt Low

 

Battery Low

 

 

 

 

 

has reached the user settable “Battery Low

 

Alarm

YES

YES

NO

YES

Warning” set point. Complete the controlled

Warning

 

Warning

 

 

 

 

 

 

shutdown of the critical load. Reset the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

alarms if the input power is restored before

 

 

 

 

 

 

 

 

shutdown.

Batt Test

 

Battery Test

 

 

 

 

 

With the battery breaker closed, the battery

 

Alarm

YES

YES

NO

YES

has failed the self-test. Momentary display.

Failed

 

Failed

 

 

 

 

 

 

Sets flag in the event history log

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Batt Test

 

Battery Test

 

 

 

 

 

With the battery breaker closed, the battery

 

Alarm

NO

NO

NO

YES

has passed the self-test. Momentary

Passed

 

Passed

 

 

 

 

 

 

display. Sets flag in the event history log

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The User has modified and saved one or

Config

 

Config

Alarm

NO

NO

NO

YES

more settings on the configuration screen.

Modified

 

Modified

Momentary display. Sets flag in the event

 

 

 

 

 

 

 

 

 

 

 

 

 

 

history log

 

 

 

 

 

 

 

 

 

85

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Image 93
Liebert 30-130kVA manual Push-button switch located on