Speed Monitor - Danfoss VLT FC 102 Programming Manual

Programming Guide | VLT® HVAC Drive FC 102
If [20] ATEX ETR is selected in parameter 1-90 Motor Thermal Protection, set parameter 4-18 Current Limit current limit to 150%.
This is a true current limit function that continues in the oversynchronous range. However, due to field weakening the motor torque at
current limit will drop accordingly when the voltage increase stops above the synchronized speed of the motor.
4-19 Max Output Frequency
Default value: Size related
Setup:
All setups
Data type: Uint16
This parameter cannot be adjusted while the motor is running.
Maximum output frequency cannot exceed 10% of the inverter switching frequency (parameter 14-01 Switching Frequency).
Provides a final limit on the output frequency for improved safety in applications where overspeeding is to be avoided. This limit is final
in all configurations (independent of the setting in parameter 1-00 Configuration Mode).

4-4* Speed Monitor

6.6.2
4-46 Motor Protection Current Limit
Default value:
0 A
Setup: All setups
Data type:
Uint32
Set the peak motor current at which the drive disables the PWM to protect the motor.
4-47 Motor Protection Reaction Time
Default value: 10 us
Setup: All setups
Data type: Uint16
The maximum time the peak motor current can exceed the motor protection current limit before the drive disables the PWM to protect
the motor.
4-49 Motor Check Time Interval
Default value:
[0] As fast as possible
Setup: All setups
Data type:
Uint8
Select the time interval at which the connections between the motor and the drive are checked, when the motor is stopped. The motor
check is performed at a specified interval, unless the motor is started in between.
© 2024.10
NOTICE
Parameter type:
Conversion index:
Change during operation:
NOTICE
NOTICE
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
Parameter type:
Conversion index:
Change during operation:
Parameter Descriptions
Range, 1 - 590 Hz
-1
False
Range, 0 - 10000.00 A
-2
False
Range, 0.1 - 100 us
-7
False
Option
–
True
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