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)

 

 

 

 

 

 

 

 

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

Rectifier Fail

 

Rectifier Fail

Fault

YES

YES

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;

Inverter Fail

 

Inverter Fail

Fault

YES

YES

YES

YES

IDC Peak; IGBT Drive Fail; Output

 

Overvoltage Transfer; Output Undervoltage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transfer; Inverter DC Offset. All actions are

 

 

 

 

 

 

 

 

controlled by the causal faults.

 

 

 

 

 

 

 

 

An Equipment Over-temperature condition

 

 

Overtemp

 

 

 

 

 

has persisted for more than 10 minutes.

Ovtemp time-

 

 

 

 

 

The load is transferred to the bypass line

Time-out

Fault

YES

YES

NO

YES

out Sd

 

and the UPS module is shut down. Check

 

Shutdown

 

 

 

 

 

 

 

 

 

 

 

 

the air intake, air exhaust, and filters before

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

attempting to start-up the UPS.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A transfer to Static Bypass was

Transfer

 

Transfer Failed

Fault

YES

YES

YES

YES

unsuccessfully attempted and power to the

Failed Sd

 

Shutdown

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

Ctrl Fault

 

Controller fault

 

 

 

 

 

occurs when the UPSC’s Watchdog Fail

 

Fault

YES

YES

NO

YES

line is automatically asserted during a

SBS on

 

SBS on

 

 

 

 

 

 

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

 

 

Hardware

 

 

 

 

 

load Shutdown, logic power supply failure,

Hardware Sd

Fault

YES

NO

NO

YES

or inverter output symmetry failure. The

Shutdown

 

 

 

 

 

 

 

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.

Opt pwr

 

Option Power

 

 

 

 

 

The Option Power Supply has failed.

 

Fault

YES

YES

NO

YES

Remote Alarm Status panels may be

supply Fail

 

Supply Fail

 

 

 

 

 

 

disabled. Contact Liebert Global Service.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

79

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Image 87
Liebert 30-130kVA manual This is a summary event based on