Danfoss VLT AutomationDrive FC 301 Programming Manual page 152

VLT AutomationDrive FC 301/302
Programming Guide
Enter the proportion of the total ramp-up time (parameter 3-41 Ramp 1 Ramp Up Time) where the deceleration torque increases. The
larger the percentage value, the greater the jerk compensation achieved, and thus the lower the torque jerks in the application.
Parameter 3-84 Quick Stop S-ramp at Decel. End
Table 254: Parameter 3-84 Quick Stop S-ramp at Decel. End
3-84 Quick Stop S-ramp at Decel. End
Default value: 50%
Conversion index: 0
Enter the proportion of the total ramp-down time (parameter 3-42 Ramp 1 Ramp Down Time) where the deceleration torque decrea-
ses. The larger the percentage value, the greater the jerk compensation achieved, and thus the lower the torque jerks in the applica-
tion.
Parameter 3-89 Ramp Lowpass Filter Time
Table 255: Parameter 3-89 Ramp Lowpass Filter Time
3-89 Ramp Lowpass Filter Time
Default value: 1 ms
Conversion index: -4
Use this parameter to set how smoothly the speed changes.
5.4.10 3-9* Digital Pot.Meter
The digital potentiometer enables increase or decrease of the actual reference by adjusting the setup of the digital inputs using the
functions increase, decrease, or clear. To activate the function, set at least 1 digital input to increase or decrease.
Speed
P 3-95
Inc
Illustration 55: Increase Actual Reference
Speed
P 3-95
Dec
Inc
Illustration 56: Increase/Decrease Actual Reference
Parameter 3-90 Step Size
Table 256: Parameter 3-90 Step Size
3-90 Step Size
Default value: 0.1%
Conversion index: -2
152 | Danfoss A/S © 2022.12
Parameter type: Range, 1 - 99%
Data type: Uint8
Parameter type: Range, 1 - 2000 ms
Data type: Uint16
Time (s)
Time (s)
Parameter type: Range, 0.01 - 200%
Data type: Uint16
Parameter Descriptions
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: True
Setup: All setups
Change during operation: True
AU275636650261en-000101 / 130R0334