Festo Электромотор MTR-DCI - Manual (Page 158)

5. Commissioning
5-70
Festo P.BE-MTR-DCI-PB-EN en 1209a
5.8.5 Record Select: Executing a position set record
In the status “Operation enabled”, a record can be started.
This function is usually used for:
– Moving to any position in the record list by the PLC
– Processing a positioning profile by linking records
– Known target positions which seldom change (change of
formula).
Sequence
1. Set the desired record number in the output data of the
master. Up till the start, the controller continues to re-
spond with the number of the record last executed.
2. With a rising edge at START (CPOS.B1) the controller ac-
cepts the record number and starts the positioning task.
3. The controller signals with the rising edge on Acknow-
ledge Start that the PLC output data have been accepted
and that the positioning task is now active. The position-
ing command is executed irrespective of whether Start
(CPOS.B1) has been reset to zero or not.
4. When the record is concluded, MC (SPOS.B2) is set.
Possible causes of faults:
– Homing has not been carried out
– The target position and/or the preselect position cannot
be reached
– Invalid record number