ComAp InteliGen NT

InteliGen
NT
, InteliSys
NT
, InteliMains
NT
– Troubleshooting Guide,
SW version IGS-NT-3.1.0, IM-NT-3.1.0, ©ComAp – August 2018 37
IGS-NT Troubleshooting Guide.pdf
IGS-NT Alarm/History
record
Alarm/
History
Appeara
nce
Description
to neutral voltages. It means that Basic settings:
FixVoltProtSel is set to PHASE-NEUTRAL.
Vb L1, L2 or L3 over
H
Bus L1, L2 or L3 voltage was over the Bus > Hst limit for
Bus V del time. Overvoltage protections are based on Bus
protect: Bus > Hst and Bus V del setpoints. This alarm is
issued if voltage protections are based on phase to neutral
voltages. It means that Basic settings: FixVoltProtSel is
set to PHASE-NEUTRAL.
Vb L12, L23 or L31 under
H
Bus L12, L23 or L31 voltage was under the Bus < Hst limit
for Bus V del time. Undervoltage protections are based on
Bus protect: Bus < Hst and Bus V del setpoints. This
alarm is issued if voltage protections are based on phase
to phase voltages. It means that Basic settings:
FixVoltProtSel is set to PHASE-PHASE.
Vb L12, L23 or L31 under
H
Bus L12, L23 or L31 voltage was over the Bus > Hst limit
for Bus V del time. Overvoltage protections are based on
Bus protect: Bus > Hst and Bus V del setpoints. This
alarm is issued if voltage protections are based on phase
to phase voltages. It means that Basic settings:
FixVoltProtSel is set to PHASE-PHASE.
f bus under
H
Bus frequency was under the Bus <f limit for Bus f del
time. Under frequency protection is based on Bus protect:
Bus <f and Bus f del setpoints.
f bus over
H
Bus frequency was over the Bus >f limit for Bus f del time.
Over frequency protection is based on Bus protect: Bus >f
and Bus f del setpoints.
Bus meas error
A+H
Bus measurement error is issued if bus voltage is out of
limits. For details see description of the Gener
protect:BusMeasError setpoint in IGS-NT-x.y-Reference
Guide.
OfL StartBlck
A+H
This alarm indicates wrong setpoints setting that disables
engine start or load takeover. Incorrect combination of
ProcessControl: Island enable; ParallelEnable; Synchro
enable; MF start enable setpoints setting is the reason why
this alarm is issued.
See AUT mode section of the OFF-MAN-AUT mode
chapter in IGS-NT-x.y-Reference Guide for SPTM, SPI or
COMBI application.
OperConflict
A
Alarm alerts to conflict of settings required behavior.
It can occur in these cases:
- Function MF (MainsFail) want to start gen-set(s),
but Insland mode is Disabled (in AUT or TEST
mode)
- Parallel and Island mode are Disabled (in other
mode than OFF)
- Parallel is Enabled, but Synchronisation is
Disabled (NONE) - in AUT mode
This alarm indication is implemented in IGS/M-NT 3.1 and
higher. (it replaces alarm “OfL StartBlck”)
StartBlck
A+H
This alarm indicates wrong setpoints setting that disables
start of gensets. Incorrect combination of
ProcessControl: Island enable; ParallelEnable; Synchro
enable; MF start enable setpoints setting is the reason why
this alarm is issued.
See OFF-MAN-AUT mode chapter in IM-NT-MCB-MGCB