4.8.2.1 Set speed setting
The target speed is preset via vl20 vl target velocity. The resolution is 1 rpm
.
Setting the target speed
Resolution 1 rpm
The target speed can be preset with higher resolution with vl21. This object is not
defined according to CiA402
Setting the target speed
Resolution: 1/8192 rpm = 0.000122 rpm
Parameters vl20 and vl21 are added to a common target speed.
4.8.2.2 Target speed limitation
The target speed is limited in the function block Velocity limits. The settings are
made via the following objects.
vl velocity min amount for
Minimum speed in FOR direction of rotation (pos. speeds)
vl velocity max amount for
Maximum speed in FOR direction of rotation (pos. speeds)
vl velocity min amount rev
Minimum speed in REV direction of rotation (neg. speeds)
vl velocity max amount rev
Maximum speed in REV direction of rotation (neg. speeds)
Figure 36: Target speed limitation
4.8.2.3 Controlword in the velocity mode
The properties of some controlword bits depend on the OperationMode. In velocity
mode they are defined as follows:
VL velocity max amount for (vl05)
Output (ru05)
Input (vl20 + vl21)
VL velocity min amount for (vl04)
VL velocity min amount rev (vl06)
VL velocity max amount rev (vl07)
To Next Page
Loading...
Need help?
General
