Failure Messages - ABB CM-UFD.M31 Betriebs- Und Montageanleitung

Failure messages

The voltage at L3 has fallen below
the first undervoltage threshold. The
voltages at L1 and L2 have fallen below
the switch-on conditions, yet not below
the undervoltage threshold.
The first overfrequency threshold was
exceeded.
The threshold for rate of change of
frequency was exceeded.
The threshold for vector shift detection
was exceeded.
Remote trip from control input Y3-Y0
detected.
Designation of the protective functions according to VDE-AR-N 4105 and BDEW
Device parameters
Overvoltage >U
AV
Overvoltage >U1
Overvoltage >U2
Undervoltage <U1
Undervoltage <U2
Overfrequency >F1
Overfrequency >F2
Underfrequency <F1
Underfrequency <F2
acc. to VDE-AR-N 4105 para. 6.5.2
Voltage increase protection U>
Voltage increase protection U>>
not required
Voltage decrease protection U<
not required
Frequency increase protection f>
not required
Frequency decrease protection f<
not required
The neutral conductor is disconnected
or interrupted.
Please check the wiring.
Error in feedback loop Y1-Y0, e.g. wiring
failure or welded feedback contact.
Please check wiring.
Error in feedback loop is removed. Press
ESC to reset the grid feeding monitoring
relay.
The power interruption as well as the
time stamp is recorded in the error list.
acc. to BDEW table 3.2.3.3-2
not required
not required
Voltage increase protection U>>
Voltage decrease protection U<
Voltage decrease protection U<<
Frequency increase protection f>
not required
Frequency decrease protection f<
not required
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