Danfoss VLT AutomationDrive FC 301 Programming Manual page 472

VLT AutomationDrive FC 301/302
Programming Guide
the installed paralleled filters. The inductance value in the parameter is the inductance value of the filter divided by the number of
paralleled filters.
SETTING FOR VLT® MCC 201 ALL-MODE AND VLT® MCC 101 SINE-WAVE FILTERS
Enables accurate flux control compensation when option [2] Flux Sensorless or option [3] Flux w/Motor Feedback is selected in
parameter 1-01 Motor Control Principle.
-
Enter the correct inductance value of the connected filter.
Parameter 14-59 Actual Number of Inverter Units
Table 749: Parameter 14-59 Actual Number of Inverter Units
14-59 Actual Number of Inverter Units
Default value: Size related
Conversion index: 0
Set the actual number of power units.
5.14.7 14-6* Auto Derate
This parameter group contains parameters for derating the drive if there is high temperature.
Parameter 14-60 Function at Over Temperature
Table 750: Parameter 14-60 Function at Over Temperature
14-60 Function at Over Temperature
Default value: [0] Trip
Conversion index: -
If either heat sink or control card temperature exceeds a factory-programmed temperature limit, a warning is activated. If the tem-
perature increases further, select whether the drive should trip (trip lock) or derate the output current.
Option Name Description
[0]* Trip The drive trips (trip lock) and generates an alarm. Cycle power to reset the alarm. The motor restarts when the
heat sink temperature has dropped below the alarm limit.
[1] Derate If the critical temperature is exceeded, the output current is reduced until the allowable temperature has
been reached.
No trip at inverter overload
In some systems, the drive has not been sized properly to yield the current needed in all points of the operational flow-head charac-
teristic. At these points, the motor needs a current higher than the rated current of the drive. The drive can yield 110% of the rated
current continuously for 60 s. If still overloaded, the drive normally trips (causing the motor to stop by coasting) and issues an alarm.
472 | Danfoss A/S © 2022.12
N O T I C E
Parameter type: Range, 1 - 1
Data type: Uint8
Parameter type: Option
Data type: Uint8
Parameter Descriptions
Setup: All setups
Change during operation: False
Setup: All setups
Change during operation: True
AU275636650261en-000101 / 130R0334