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%
Parameter type: Range, 1 - 99%
Setup: All setups
Conversion index: 0
Data type: Uint8
Change during operation: True
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
Parameter type: Range, 1 - 2000 ms
Setup: All setups
Conversion index: -4
Data type: Uint16
Change during operation: True
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
Time (s)
Inc
e
3
0
b
a
1
5
8
.1
2
P 3-95
Illustration 55: Increase Actual Reference
Speed
Time (s)
Dec
Inc
e
3
0
b
a
1
5
9
.1
2
P 3-95
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%
Parameter type: Range, 0.01 - 200%
Setup: All setups
Conversion index: -2
Data type: Uint16
Change during operation: True
AU275636650261en-000101 / 130R0334
152 | Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide
Summary of Contents for VLT AutomationDrive FC 301
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