Danfoss iC7 Series Application Manual page 206

Application Guide | iC7 Series Industry
Parameter 1007
Number:
Data Type: UINT
The following are the selections for the parameter.
Selection Number Selection Name
0 Step and Ramp
1 Ramp
2 Step
Speed Ramps (Menu Index 5.8.6)
6.6.9.7
Speed Ramps Overview
6.6.9.7.1
Ramps are used for reaching the desired speed reference in a controlled manner. The parameters in the Speed Ramps parameter group is
used to select the ramp type and to adjust their shapes.
Ramps 1–4 can be configured as linear or S-ramps. A linear ramp provides the motor a constant acceleration. The S-ramp allows the drive
to compensate for jerk in the application and/or to reduce sway.
The following diagram illustrates how the ramp parameters are used for adjusting the ramp profiles.
Speed
(3) (4)
(1)
Figure 70: Speed Ramps
1 Ramp acceleration time
3
Ramp acceleration increase time for S-ramps
5 Ramp deceleration increase time for S-ramps
Furthermore, the drive supports a variable ramp profile, which allows the changing of the acceleration and deceleration time
dynamically with analog inputs.
6.6.9.7.2 Speed Ramp Settings (Menu Index 5.8.6.1)
P 5.8.6.1.1 Ramp Selector
Select the speed ramp.
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Time
(5) (6)
(2)
Unit:
Access Type:
Selection Description
Step increment and ramp thereafter.
Ramp increment.
Step increment.
2 Ramp deceleration time
4
Ramp acceleration decrease time for S-ramps
6 Ramp deceleration decrease time for S-ramps
Parameter Descriptions
–
Read/Write
AB480436531518en-000601 / 136R0283