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Operation Manual 37107F
MFR 3 - Multi Function Relay
Page 54/165
© Woodward
Automatic Mode (Second Display Line: Alarm Display)
NOTE
It is possible to scroll through any alarms that may be present using the "Message
↓
" push-button.
----------------
yyyyyyyyyyyyyyyy
Display in automatic mode, second line: alarms
If an alarm occurs the message is displayed in the second line of the LC display ac-
cording to the following list.
Type of alarm
see page
Alarm
class
Alarm text
Relay output
(terminal)
Generator overfrequency, level 1
Gen.overfreq. 1
Generator overfrequency, level 2
Gen.overfreq. 2
Generator underfrequency, level 1
Gen.underfreq. 1
Generator underfrequency, level 2
Gen.underfreq. 2
Generator overvoltage, level 1
Gen.overvolt. 1
Generator overvoltage, level 2
Gen.overvolt. 2
Generator undervoltage, level 1
Gen.undervolt. 1
Generator undervoltage, level 2
Gen.undervolt. 2
Generator time-overcurrent, level 1
Gen.overcurr. 1
Generator time-overcurrent, level 2
Gen.overcurr. 2
Reverse/reduced load
Revers/min.power
Overload
Gen.overload
Unbalanced load
Load unbalance
Mains overvoltage
Mains-overvolt.
Mains undervoltage
Mains-undervolt.
Main overfrequency
Mains-underfreq.
Mains underfrequency
Mains-overfreq.
Mains phase/vector jump
Phase shift
Mains df/dt
df/dt error
Battery undervoltage
Batt.undervolt.
GCB synchronization time monitoring
GCB syn.failure
MCB synchronization time monitoring
MCB syn.failure
Switching to dead busbar time monitoring
Failure df/dVmax
Mechanical GCB malfunction on closing
GCBclose failure
Mechanical MCB malfunction on closing
MCBclose failure
Mechanical GCB malfunction on opening
GCB open failure
Mechanical MCB malfunction on opening
MCB open failure
Faulty ref.power zero contr.with interch.syn. GCB
Power not zero
Maintenance call
Service
Interface error X1 to X5
Interf.err. X1X5
Interface error Y1 to Y5
Interf.err. Y1Y5
Rotation field mismatch
91 -*
Phase sequence!
Generator reactive power, capacitive
Gen.reac.pow.cap
Generator reactive power, inducitive
Gen.reac.pow.ind
Note:
In the event of mains faults, the GCB or the MCB is opened according to the configuration, and is closed again following the mains
settling time.
* This message is no alarm message in the actual sense, but an informative message, which does not have to be acknowledged and causes
no shutdown of the engine. The display disappears automatically after correcting the rotating field.
Table 5-1: Alarms - text messages