InteliLite4 AMF20 Global Guide
133
Events specification
Protection
type
Description
BOC Gen >, <Frequency BOC
The generator frequency is out of limits given by Generator
Overfrequency BOC (page 267) and Generator
Underfrequency BOC (page 268) setpoints.
BOC Current Unbalance BOC
The generator current is unbalanced more than the value of
Current Unbalance BOC (page 263) setpoint.
BOC Current IDMT BOC
Generator current exceeds the limit for IDMT protection given
by Nominal Current (page 207) and IDMT Overcurrent
Delay (page 262) setpoints.
BOC Overload BOC
The load is greater than the value given by Overload BOC
(page 260) setpoint.
Sd Overspeed SD
The protection comes active if the speed is greater than
Overspeed Sd (page 244) setpoint.
Sd Underspeed SD
During starting of the engine when the RPM reach the value
of Starting RPM (page 227) setpoint the starter is switched
off and the speed of the engine can drop under Starting RPM
(page 227) again. Then the Underspeed protection is active.
Protection evaluation starts 5seconds after reaching
Starting RPM (page 227).
Emergency Stop SD
If the input Emergency Stop is active shutdown is
immediately activated.
E-Stop SD
If the input E-Stop is active shutdown is immediately
activated.
GCB Fail SD Failure of generator circuit breaker.
MCB Fail WRN Failure of mains circuit breaker.
Sd RPM Measurement
Fail
SD
Failure of magnetic pick-up sensor for speed measurement.
This alarm appears, if starter was disengaged for other
reason than over-crossing Starting RPM (page 227) (like oil
pressure or D+) and at the end of timer Maximum Cranking
Time (page 226) there are no RPMs > Starting RPM (page
227) detected.
Wrn Stop Fail WRN
Gen-set stop failed. See description at Gen-set Operation
States chapter.
Charge Alternator Fail WRN Failure of alternator for charging the battery.
Wrn Override All Sd WRN The protection is active if the output Sd Override is active.
ALIGen Ph-Rotation
Opposite
ALI
Gen-set voltage phases are not wired correctly. GCB closing
is prohibited by controller.
ALIMains Ph-Rotation
Opposite
ALI
Mains voltage phases are not wired correctly. GCB closing is
prohibited by controller.
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