Liebert 30-130kVA Operation And Maintenance Manual page 87

Table 7 Alarms, functions, and corrective actions (continued)
Actual
Alarm/fault
Name
Displayed Description
On Front of Alarm/
Panel Fault
Rectifier Fail Rectifier Fail
Inverter Fail Inverter Fail
Overtemp
Ovtemp time-
Time-out
out Sd
Shutdown
Transfer Transfer Failed
Failed Sd Shutdown
Ctrl Fault Controller fault
SBS on SBS on
Hardware
Hardware Sd
Shutdown
Opt pwr Option Power
supply Fail Supply Fail
Fault
Or Latch Dial Freeze
Alarm Mask Mask Mask
Fault YES YES
Fault YES YES
Fault YES YES
Fault YES YES
Fault YES YES
Fault YES NO
Fault YES YES
Event Log
Mask Meaning and Corrective Action(s)
This is a summary event based on the
detection of at least one of these faults
being active: Battery Overcharge; DC
Overvoltage Steady State; DC Overvoltage
YES YES Transient; DC Undervoltage Steady State;
Delta-Wye Current Imbalance; Rectifier
Fuse Fail; Rectifier Drive 1 Fail; Rectifier
Drive 2 Fail. All actions are controlled by the
causal fault.
This is a summary event based on the
detection of at least one of the following;
IDC Peak; IGBT Drive Fail; Output
YES YES
Overvoltage Transfer; Output Undervoltage
Transfer; Inverter DC Offset. All actions are
controlled by the causal faults.
An Equipment Over-temperature condition
has persisted for more than 10 minutes.
The load is transferred to the bypass line
NO YES
and the UPS module is shut down. Check
the air intake, air exhaust, and filters before
attempting to start-up the UPS.
A transfer to Static Bypass was
unsuccessfully attempted and power to the
YES YES
load was lost. Attempt to restart the system.
Contact Liebert Global Services.
Indicates that the unit has transferred to
SBS without the knowledge of the UPSC. It
occurs when the UPSC's Watchdog Fail
NO YES line is automatically asserted during a
UPSC reset. This is a permanent (latched)
condition which requires service. Contact
Liebert Global Services at once.
At least one of the following alarm
conditions is present: Inverter Fault,
Rectifier Fuse Blown, Reverse Power, Over
load Shutdown, logic power supply failure,
NO YES or inverter output symmetry failure. The
load automatically transfers to the bypass
line. The UPS module is shut down and
isolated. Contact Liebert Global Services at
once. Do not attempt to reset the UPS.
The Option Power Supply has failed.
NO YES Remote Alarm Status panels may be
disabled. Contact Liebert Global Service.
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Operation