Generac Mobile MGG450, Руководство пользователя

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Owner’s Manual for MGG450 39
Troubleshooting
Alarm Definition
BOC fgen over
Generator frequency was over the Gen >f limit for Gen f del time. Over fre-
quency protection is based on Gener protect: Gen <f and Gen f del set-
points.
BOC ReversePwr
This alarm is issued by the reverse power protection. This protection is
based on Gener protect: Reverse power and ReversePwr del setpoints.
This alarm means that either engine speed/power control does not work
properly or generator current transformers (CT’s) are connected in a
wrong way.
MP L1, L2 or L3 under
Mains L1, L2 or L3 voltage was under the Mains <V MP limit for Mains V
del time. Undervoltage protections are based on Mains protect: Mains <V
MP and Mains V del setpoints. This alarm is issued if voltage protections
are based on phase to neutral voltages. It means that Basic settings: Fix-
VoltProtSel is set to PHASE-NEUTRAL.
MP L1, L2 or L3 over
Mains L1, L2 or L3 voltage was over the Mains >V MP limit for Mains V del
time. Overvoltage protections are based on Mains protect: Mains >V MP
and Mains V del setpoints. This alarm is issued if voltage protections are
based on phase to neutral voltages. It means that Basic settings: FixVolt-
ProtSel is set to PHASE-NEUTRAL.
MP L12, L23 or L31 under
Mains L12, L23 or L31 voltage was under the Mains <V MP limit for Mains
V del time. Undervoltage protections are based on Mains protect: Mains
<V MP and Mains V del setpoints. This alarm is issued if voltage protec-
tions are based on phase to phase voltages. It means that Basic settings:
FixVoltProtSel is set to PHASE-PHASE.
MP L12, L23 or L31 over
Mains L12, L23 or L31 voltage was over the Mains >V MP limit for Mains V
del time. Overvoltage protections are based on Mains protect: Mains >V
MP and Mains V del setpoints. This alarm is issued if voltage protections
are based on phase to phase voltages. It means that Basic settings: Fix-
VoltProtSel is set to PHASE-PHASE.
Mains Avg x >V
If the value of 10 min. average mains voltage of any phase (Mains Avg V1,
Mains Avg V2, Mains Avg V3) exceed value given by setpoint Mains Avg
>V MP (Mains protect group), the MCB is opened and message Mains
Avg x >V appears in alarm list and history record. BO Common MP is acti-
vated (x indicates number of phase).
MP fmns under
Mains frequency was under the Mains <f limit for Mains f del time. Under
frequency protection is based on Mains protect: Mains <f and Mains f del
setpoints.
MP fmns over
Mains frequency was over the Mains >f limit for Mains f del time. Over fre-
quency protection is based on Mains protect: Mains >f and Mains f del set-
points.
Bus meas error
Bus measurement error is issued if bus voltage is out of limits. For details,
refer to description of the Gener protect: BusMeasError setpoint in IGS-
NT-x.y-Reference Guide.
OfL StartBlck
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. Refer to AUT mode section of the OFF-
MAN-AUT mode chapter in IGS-NT-x.y-Reference Guide for SPTM, SPI or
COMBI application.
StartBlck
This alarm indicates wrong setpoints setting that disables start of genera-
tors. Incorrect combination of ProcessControl: Island enable; ParallelEn-
able; Synchro enable; MF start enablesetpoints setting is the reason why
this alarm is issued. Refer to OFF-MAN-AUT mode chapter in IM-NT-
MCB-MGCB Reference Guide.