MCV_Decouple
The “MCV_Decouple” FB decouples an axis, i.e. it is deactivated in order to replace a motor, for example. The sequence of the internally commanded FBs is shown in the flow chart below.
Block diagram

FB parameters
VAR_IN_OUT | ||
Variable name | Data type | Description |
Axis | AXIS_REF | Axis reference |
VAR_INPUT | ||
Variable name | Data type | Description |
Execute | BOOL | The axis coupling sequence is triggered on a rising edge |
VAR_OUTPUT | ||
Variable name | Data type | Description |
Done | BOOL | The axis was decoupled successfully. |
Error | BOOL | Is TRUE if an error occurs in the FB. |
ErrorID | WORD | Error code |
Behaviour of the FB:
- The sequence of axis decoupling is listed in the diagram below.
- At the beginning of the sequence the current axis position is saved to parameter P-AXIS-00152 (pos_refpkt).
Flow chart
