Danfoss VLT HVAC Drive FC 131 Programming Manual page 125

VLT® HVAC Drive FC 131
Programming Guide
14-10 Mains Failure
Default value: [0] No function
Conversion index: -
Configure the action of the drive when the mains voltage is below the mains voltage limit configured in parameter 14-11 Mains Fault
Voltage Level.
Table 234: Option:
[0] No function
[3] Coasting
[4] Kinetic back-up
[5] Kinetic back-up, trip
[6] Alarm
[7] Kin. back-up, trip w recovery
14-11 Mains Fault Voltage Level
Default value: 198 V
Conversion index: 0
Use this parameter to define at which AC voltage the function selected in parameter 14-10 Mains Failure should be activated.
Table 235: Range:
Min: 100 V
14-12 Response to Mains Imbalance
Default value: [0] Trip
Conversion index: -
Operation under severe mains imbalance conditions reduces the lifetime of the motor. If the motor is operated continuously near
nominal load, conditions are considered severe. When a severe mains imbalance is detected, select 1 of the available functions.
Selecting this option may reduce the lifetime of the drive.
Table 236: Option:
[0] Trip
[1] Warning
[2] Disabled
[3] Derate
14-15 Kin. Back-up Trip Recovery Level
Default value: 200.000 ReferenceFeedbackUnit
Conversion index: -3
Enter the kinetic back-up trip recovery level for the application. This recovery level is the minimum speed of the motor at which the
drive is to ramp up the speed.
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Parameter type: Option
Data type: u_int8
Parameter type: Range
Data type: u_int16
Max: 800 V
Parameter type: Option
Data type: u_int8
N O T I C E
Trips the drive.
Issues a warning.
No action.
The drive would derate.
Parameter type: Range
Data type: u_int32
2-setup: All setups
Change during operation: False
2-setup: All setups
Change during operation: True
Default value: 198 V
2-setup: 1 setup
Change during operation: True
2-setup: All setups
Change during operation: True
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Parameters