DSE 8610 MKII, Operator'S Manual

Page: 140 / 188

Protections
057-254 ISSUE: 2 Page 140 of 188
Fault Description
Engine Under Speed
IEEE C37.2 - 14 Underspeed Device
The module detected that the engine speed had fallen below the
Under Speed Alarm Trip level for the configured delay timer after the
Safety On Delay timer had expired.
Exp. Unit Failure
The module detected that communications to one of the DSENet
®
expansion modules had been lost.
Fail to Synchronise
The module failed to synchronise the generator before the Fail to
Sync Delay timer had expired.
Flexible Sensor A to D High
NOTE: Due to module configuration the alarm message
that appears on the display may be different. For further details
of module configuration, refer to DSE Publication: 057-238
DSE8610 MKII Configuration Suite PC Software Manual.
The module detected that an analogue input value had risen above
the Flexible Sensor High Alarm Trip level.
Flexible Sensor A to D Low
NOTE: Due to module configuration the alarm message
that appears on the display may be different. For further details
of module configuration, refer to DSE Publication: 057-238
DSE8610 MKII Configuration Suite PC Software Manual.
The module detected that an analogue input value had fallen below
the Flexible Sensor Low Alarm Trip level.
Fuel Level High
IEEE C37.2 - 71 Liquid Level Switch
The module detected that the engine fuel level had risen the High
Fuel Level Alarm level for the configured delay.
Fuel Level Low
IEEE C37.2 - 71 Liquid Level Switch
The module detected that the engine fuel level had fallen below the
Low Fuel Level Alarm level for the configured delay
Fuel Level Low Switch
IEEE C37.2 - 71 Liquid Level Switch
The module detected that the engine low fuel level switch had
activated.
Fuel Usage
IEEE C37.2 – 80 Flow Switch
The module detected that the fuel consumption was more then the
configured Running Rate or Stopped Rate.
Gen Earth Fault
IEEE C37.2 – 51G or 51N Generator
IDMT Earth Fault Relay
NOTE: For more details, see section entitled Earth Fault
IDMT Alarm elsewhere in this document.
The module detected that the generator earth fault current had risen
above the Earth Fault Trip Level for the duration of the IDMT
function.
Gen Failed to Close
IEEE C37.2 – 52b AC Circuit Breaker
Position (Contact Open when Breaker
Closed)
The module detected that the generator load switch had failed to
close as the Generator Closed Auxiliary input did not activate within
the Generator Fail to Close Delay time after the Close Gen Output
activated.
Gen Loading Frequency
The module detected that the generator output frequency had not
risen above the Generator Loading Frequency setting after the
Warming Up timer had expired.
Gen Loading Voltage
The module detected that the generator output voltage had not risen
above the Generator Loading Voltage setting after the Warming Up
timer had expired.
Gen Over Current
IEEE C37.2 – 51 IDMT Overcurrent
Relay
NOTE: For more details, see section entitled Over Current
Alarm elsewhere in this document.
The module detected that the generator output current had risen
above the Generator Over Current Trip for the duration of the IDMT
function.
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