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Troubleshooting
46
MGG155/210 Operating Manual
35319 C
RTCbatteryFlat
This warning message "RTCbatteryFlat" appears in Alarmlist when battery is close to be
completely flat.
If power supply cut comes when the RTC battery is flat, the statistic values, history and
setpoints settings are lost. Send a controller to your distributor for battery exchange if the
RTCbatteryFlat message is displayed.
Al/Hist. msg 1-165
Al/Hist. msg 1-16 activity indication (Al/Hist. msg means Alarm/History message). Al/
Hist. msg can be used as a customized message for additional protection configured to
any controller internal value. See GenConfig manual - Protections.
Batt volt
Indication of battery voltage protection activity. This protection is based on
Analog pro-
tect
:
Batt >V
,
Batt <V
, and
Batt volt del
setpoints. Check if engine alternator or indepen-
dent battery charger works properly.
EarthFaultCurr
Indication of Earth fault current protection activity. This protection is based on
Gener
protect
:
EarthFaultCurr
and
EthFltCurr del
setpoints. Setpoint
EarthFltCurrCT
from
Basic settings
group of setpoints is related to this protection too.
Gen V unbal
Generator voltage unbalance alarm is based on
Gener protect
:
Gen V unbal
and
Gen V
unb del
setpoints. The voltage unbalance is calculated as a maximum difference
between phase voltages.
Gen I unbal
Generator voltage unbalance alarm is based on
Gener protect
:
Gen V unbal
and
Gen V
unb del
setpoints. The voltage unbalance is calculated as a maximum difference
between phase voltages.
BusL I unbal
Left bus current asymmetry (unbalance) alarm is based on
Gener protect
:
BusL I unbal
and
BusL I unb del
setpoints. The current unbalance is calculated as a maximum differ-
ence between phase currents.
Mains V unbal
Mains voltage unbalance alarm is based on
Mains protect
:
Mains V unbal
and
MainsV
unb del
setpoints. The voltage unbalance is calculated as a maximum difference
between phase voltages.
Mains I unbal
Mains current asymmetry (unbalance) alarm is based on
Mains protect
:
Mains I unbal
and
Mains Iunb del
setpoints. The current unbalance is calculated as a maximum differ-
ence between phase currents.
Bus V unbal
Bus voltage unbalance alarm is based on
Gener protect (Bus protect)
:
Bus V unbal
and
Bus V unb del
setpoints. The voltage unbalance is calculated as a maximum differ-
ence between phase voltages.
BusL V unbal
Left bus voltage unbalance alarm is based on
BusL protect
:
BusL V unbal
and
BusL V
unb del
setpoints. The voltage unbalance is calculated as a maximum difference
between phase voltages.
BusR V unbal
Right bus voltage unbalance alarm is based on
BusR protect
:
BusR V unbal
and
BusR
V unb del
setpoints. The voltage unbalance is calculated as a maximum difference
between phase voltages.
Dongle incomp
Incompatible (usually missing) dongle indication.
IGS-NT-LSM+PMS dongle (green one) is required if load sharing and power manage-
ment functions are used in MINT, COX or COMBI application.
Check a Reference Guide for information whether a dongle is required for requested
functionality or not.
Emergency stop
Emergency stop activity indication. Check binary input with
Emergency stop
function.
Table 8 - Digital Controller List of Alarms
NT
Alarm/History
Record
Description
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