7.15.6 Current imbalance protection
This protection detects if there is imbalance in the
currents. Normally it should be same current amount in
all three phases. If the current amount is different in the
phases the engine can go bumpy.
This protection is only operational in the Top of ramp
state.
Current imbalance protection is configured with the
following parameters:
Parameter Description Setting range Default value
14.11 Curr imb level Sets the Current imbalance trip
level.
10 ... 80 % 80 %
14.12 Curr imb trip time Sets the time that the Current
imbalance has to be below the trip
level to trip.
1 ... 30 s 10 s
14.13 Curr imb delay time Sets the time after Top of ramp that
the protection is enabled.
1 ... 30 s 30 s
14.14 Curr imb out Specifies the Event groups this
protection belongs to.
Eventgroup 0 ...6 2
14.15 Curr imb operation Sets the operation of this protection. Off, Stop manual,
Stop auto, Indication.
Off
7.15.7 Over voltage protection
This proection detects if the main voltage is too high.
Check the main voltage. This protection is not operational
in the Standby state.
Over voltage protection is configured with the
following parameters:
Parameter Description Setting range Default value
15.01 Over voltage level Sets the Over voltage trip level. 170 ... 850 V 850 V
15.02 Over voltage trip time Sets the time that the voltage has to
be above the trip level to trip.
0.1 ... 100.0 s 1.0 s
15.03 Over voltage out Specifies the Event groups this
protection belongs to.
Eventgroup 0 ... 6 2
15.04 Over voltage op Sets the operation of this protection. Off, Stop manual,
Stop auto, Indication.
Off
7.15.8 Under voltage protection
This protection detects if the main voltage is too low.
Check the main voltage.
Under voltage protection is configured with the
following parameters:
Parameter Description Setting range Default value
15.05 Under voltage level Sets the Under voltage trip level. 170 ... 850 V 208 V
15.06 Under voltage trip time Sets the time that the voltage has to
be below the trip level to trip.
0.1 ... 100.0 s 1.0 s
15.07 Under voltage op Sets the operation of this protection. Off, Stop manual,
Stop auto, Indication.
Off
15.08 Under voltage out Specifies the Event groups this
protection belongs to.
Eventgroup 0 ... 6 2
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