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106
Functions
| Installation and commissioning manual | 1SFC132081M0201
7.17.7 Overvoltage
protection
This protection senses if the main voltage is too high.
This protection does not operate in the Standby state.
Overvoltage protection has these parameters:
Parameter
Description
Setting range
Default value
15.01 Overvoltage level
Sets the Overvoltage trip level.
165 ... 850 V
850 V
15.02 Overvoltage trip time
Sets the time that the voltage is
above the trip level to trip.
0.1 ... 100.0 s
1.0 s
15.03 Overvoltage out
Identifies the Event groups this
protection is part of.
Eventgroup 0 ... 6
0000010
15.04 Overvoltage op
Sets the operation of this
protection.
Off, Stop manual,
Stop auto, Indication.
Off
7.17.8 Under voltage protection
This protection only operates in the Top of ramp state.
Under voltage protection has these parameters:
Parameter
Description
Setting range
Default value
15.05 Under voltage level
Sets the Under voltage trip level.
165 ... 760 V
165 V
15.06 Under voltage trip time
Sets the time that the voltage is
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
Identifies the Event groups this
protection is part of.
Eventgroup 0 ... 6
0000010
7.17.9 Voltage imbalance protection
This protection senses voltage imbalance. Normally
there is the same voltage in all 3 phases. If the voltage is
different in the phases, the engine can run bumpy.
Voltage imbalance protection has these parameters:
Parameter
Description
Setting range
Default value
15.09 Voltage imb level
Sets the permitted voltage
imbalance level between the
phase with the highest voltage
and the phase with the lowest
voltage.
1 ... 100%
10%
15.10 Voltage imb out
Identifies the Event groups this
protection is part of.
Eventgroup 0 ... 6
0000010
15.11 Voltage imb op
Sets the operation of this
protection.
Off, Stop manual,
Stop auto,
Indication.
Off
15.11 Voltage imb trip time
Sets the time of voltage
imbalance in order to trip.
1...100 s
10 s
7
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Страница 156: ...156 Maintenance Installation and commissioning manual 1SFC132081M0201 9...
Страница 168: ...168 Troubleshooting Installation and commissioning manual 1SFC132081M0201 10...
Страница 176: ...176 Wiring and application diagrams Installation and commissioning manual 1SFC132081M0201 11...
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Страница 183: ...1SFC132081M0201 Installation and commissioning manual Revision 183 13...
Страница 187: ...1SFC132081M0201 Installation and commissioning manual Index 187 14...