Danfoss VLT AutomationDrive FC 301 Programming Manual page 156

VLT AutomationDrive FC 301/302
Programming Guide
Parameter 4-18 Current Limit
Table 269: Parameter 4-18 Current Limit
4-18 Current Limit
Default value: Size related
Conversion index: -1
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.
Parameter 4-19 Max Output Frequency
Table 270: Parameter 4-19 Max Output Frequency
4-19 Max Output Frequency
Default value: Size related
Conversion index: -1
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).
5.5.2 4-2* Limit Factors
The following parameters are only available in FC 302.
-
Parameter 4-25 Power Limit Motor Factor Source
-
Parameter 4-26 Power Limit Gener. Factor Source
Parameter 4-20 Torque Limit Factor Source
Table 271: Parameter 4-20 Torque Limit Factor Source
4-20 Torque Limit Factor Source
Default value: [0] No function
Conversion index: –
Select an analog input for scaling the settings in parameter 4-16 Torque Limit Motor Mode and parameter 4-17 Torque Limit Generator
Mode 0–100% (or inverse). The signal levels corresponding to 0% and 100% are defined in the analog input scaling, for example
parameter group 6-1* Analog Input 1. This parameter is only active when parameter 1-00 Configuration Mode is in [0] Speed Open Loop
or [1] Speed Closed Loop.
156 | Danfoss A/S © 2022.12
Parameter type: Range, 1.0 - 1000.0%
Data type: Uint32
N O T I C E
Parameter type: Range, 1 - 590 Hz
Data type: Uint16
N O T I C E
N O T I C E
N O T I C E
Parameter type: Option
Data type: Uint8
Parameter Descriptions
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: False
Setup: All setups
Change during operation: True
AU275636650261en-000101 / 130R0334