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)

 

 

 

 

 

 

 

 

On units equipped with an input filter,

 

 

 

 

 

 

 

 

Control Logic has determined that one or

Trap Fuse

 

 

 

 

 

 

 

more of the filter fuses is open. The logic

 

Trap Fuse Fail

Fault

NO

YES

NO

YES

will open the Input filter contactor. The UPS

Fail

 

 

 

 

 

 

 

 

will continue to run, without input filtering.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contact Liebert Global Service to check

 

 

 

 

 

 

 

 

and repair the input filter.

 

 

 

 

 

 

 

 

Reports an On Battery state as long as the

On Battery

 

On Battery

Alarm

NO

NO

NO

YES

battery CB is closed, Input Undervoltage

 

alarm exists, and the status bit ON UPS is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

set.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Battery charge current is 50% above the

 

 

 

 

 

 

 

 

Battery Charge Current Limit for longer than

 

 

 

 

 

 

 

 

5 seconds. The load will be transferred to

Battery

 

Battery

 

 

 

 

 

Bypass. If Bypass is not available the UPS

 

Fault

YES

YES

NO

YES

will attempt to run from the battery. If both

Overcharge

 

Overchg

 

 

 

 

 

 

battery and bypass are not available, a full

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

system shutdown will be initiated. This fault

 

 

 

 

 

 

 

 

will inhibit start-up. Contact Liebert Global

 

 

 

 

 

 

 

 

Services immediately

 

 

 

 

 

 

 

 

The bypass frequency is outside the ± 5%

 

 

 

 

 

 

 

 

of the system rating. If the load is on

 

 

 

 

 

 

 

 

bypass the static switch will be shut down

 

 

 

 

 

 

 

 

and power will be lost to the load. If the load

Byp Freq

 

Bypass

 

 

 

 

 

is on UPS, transfer to bypass will be

 

Frequency

Fault

NO

NO

NO

YES

inhibited, until this fault clears or is

Error

 

 

Error

 

 

 

 

 

corrected. This fault will inhibit startup. If

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

fault persists check the bypass source for

 

 

 

 

 

 

 

 

the cause of the frequency irregularity.

 

 

 

 

 

 

 

 

Contact Liebert Global services if you have

 

 

 

 

 

 

 

 

questions.

 

 

 

 

 

 

 

 

With the load on Static Bypass the system

 

 

 

 

 

 

 

 

has determined that at least one phase of

 

 

 

 

 

 

 

 

the Bypass has exceeded the KVA, KW, or

 

 

 

 

 

 

 

 

RMS current vs. Time overload spec. The

Byp ovld

 

Bypass

 

 

 

 

 

Static Bypass switch will be turned of and

 

OverLoad

Fault

YES

YES

NO

YES

the system will be shut down. Power to the

Shutdown

 

 

Shutdown

 

 

 

 

 

load will be turned off. Remove the excess

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

load from the UPS and attempt to re-start. If

 

 

 

 

 

 

 

 

the load is below the rating of the UPS and

 

 

 

 

 

 

 

 

it will not re-start, contact Liebert Global

 

 

 

 

 

 

 

 

Services.

 

 

 

 

 

 

 

 

The power conductors on the bypass line

 

 

 

 

 

 

 

 

are not wired to the UPS in the required

 

 

 

 

 

 

 

 

sequence. This alarm should appear only

Byp Phase

 

Bypass Phase

Fault

NO

NO

NO

YES

during initial start-up or after a repair to the

Rot Error

 

Rotation Error

source power system. Disconnect power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

from the bypass line and correct the wiring.

 

 

 

 

 

 

 

 

Liebert Global Services must be present

 

 

 

 

 

 

 

 

during initial start-up of your UPS System.

 

 

 

 

 

 

 

 

The system has detected a failed IGBT.

IDC Peak

 

IDC Peak

Fault

YES

YES

NO

YES

The unit will transfer to Bypass if available.

 

Contact Liebert Global Services

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

immediately.

 

 

 

 

 

 

 

 

 

75

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