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Alarm (ALM) messages by PLC
Code
Message
Reason
Action
BAE0_1Q001ALI
ALM, Gen. breaker
truck position error
Breaker service and
isolated signals
active OR none of
the signals active
Check the position contacts and
wiring
BAE0_1Q009ALI
ALM, Gen. earthing
disconnector position
error
Breaker open and
close signals active
OR none of the
signals active
Check the position contacts and
wiring
BAE0_1F000MCB
ALM, Gen. measuring
MCB open
Generator junction
box MCB tripped
Check the wiring
BAE0_1F51N1AOPR
ALM, Gen. Prot.,
Earth fault I01 trip
Earth fault protection
activated
Check the prot. relay event recorder.
Check the earth fault reasons
BAE0_1F51N1BOPR
ALM, Gen. Prot.,
Earth fault I01> trip
Earth fault protection
activated
Check the prot. relay event recorder.
Check the earth fault reasons
BAE0_1F51N2AOPR
ALM, Gen. Prot.,
Earth fault I02 trip
Earth fault protection
activated
Check the prot. relay event recorder.
Check the earth fault reasons
BAE0_1F51N2BOPR
ALM, Gen. Prot.,
Earth fault I02> trip
Earth fault protection
activated
Check the prot. relay event recorder.
Check the earth fault reasons
BAE0_1F59NAOPR
ALM, Gen. Prot.,
Earth fault U0 trip
Earth fault protection
activated
Check the prot. relay event recorder.
Check the earth fault reasons
BAE0_1F59NBOPR
ALM, Gen. Prot.,
Earth fault U0> trip
Earth fault protection
activated
Check the prot. relay event recorder.
Check the earth fault reasons
BAE0_1F67NOPR
ALM, Gen. Prot.,
Earth fault,
directional I0 trip
Earth fault protection
activated
Check the prot. relay event recorder.
Check the earth fault reasons
BAE0_1F51AOPR
ALM, Gen. Prot.,
Overcurrent I trip
Activation of primary
generator short-
circuit protection if a
fault occurs in the
busbar or in the
utility. Possible other
reasons for
activation:
overloading
protection of the
generator and as a
back-up for the
differential relay in
case of stator short
circuits.
Check the prot. relay event recorder.
Check for reasons for short-circuits
BAE0_1F81HOPR
ALM, Gen. Prot.,
Overfrequency f
Sudden loss of load
Check the prot. relay event recorder.
Check load fluctuations and reasons
for loss of load
BAE0_1F59AOPR
ALM, Gen. Prot.,
Overvoltage U trip
Activation due to
prolonged operation
with excessive over
voltage or in case of
AVR failures or
network disturbances
Check the prot. relay event recorder.
Check for reasons for overvoltages,
Check the AVR
BAE0_1F59BOPR
ALM, Gen. Prot.,
Overvoltage U> trip
Activation due to
prolonged operation
with excessive over
voltage or in case of
AVR failures or
network disturbances
Check the prot. relay event recorder.
Check for reasons for overvoltages,
Check the AVR
34SG-200414-04
Operating Troubles