Danfoss VLT AutomationDrive FC 302 Programming Guide

The position and speed controllers are executed on the fastest control task (up to 7 kHz depending on the switching frequency) in
flux with motor feedback for PM motors and on the 1 ms task for induction motors. In dynamic mode, the position and speed con-
trollers are also executed on the fastest ontrol task for induction motors. This mode significantly improves control performance for
induction motors.
Option
Name
Description
[0]*
Off
Dynamic mode is not activated.
[1]
On
Dynamic mode is activated.
Parameter 40-55 Modulation Index
Table 1368: Parameter 40-55 Modulation Index
40-55 Modulation Index
Default value: 100%
Parameter type: Range, 80 - 106%
Setup: All setups
Conversion index: 0
Data type: Uint8
Change during operation: True
N O T I C E
This parameter is for IPM and SPM motors in VVC+ control principle only.
Activate this parameter by setting parameter 14-03 Overmodulation to [2] User Defined. Use this parameter to set the maximum mod-
ulation index and thus trim the application, especially if running with high-power motors without sine-wave filters. Increasing the
maximum modulation index increases the motor voltage and improves efficiency and stability. Setting the modulation index too
high may lead to torque ripples on the motor shaft.
Parameter 40-58 Control Word Source Internal
Table 1369: Parameter 40-58 Control Word Source Internal
40-58 Control Word Source Internal
Default value: [1] FC RS485
Parameter type: Option
Setup: 2 setups
Conversion index: -
Data type: Uint8
Change during operation: False
Option
Name
Description
[0]
None
[1]*
FC RS485
[2]
FC USB
[3]
Option A
[4]
Option B
[5]
Option C0
[6]
Option C1
AU275636650261en-000101 / 130R0334 | 667Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide

Danfoss VLT AutomationDrive FC 302 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 302
Category	DC Drives
Language	English