Pilz PNOZ ms4p speedcontrol - Manual (Page 30)

9.2 Example with position control
9 Application examples
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9-2
9.2 Example with position control 9200 Example with position control 9-
Evaluation of bit: "Unfeasible or single-channel signal from the
incremental encoder", with position control
Diagnostic bit 10: "Unfeasible or single-channel signal from the incre-
mental encoder" may be set during position control as a result of jitter
on the encoder.
The set bit can be tolerated, i.e. evaluated in the user program in such a
way that a shutdown will not occur if the following conditions are met:
` An additional position control signal must be provided from an exter-
nal control system (e.g. PLC) and
` The signal must have the following status conditions:
– Position control: Signal status = 1
– Operation: Signal status = 0
During operation, diagnostic bit 10 must be evaluated in the user pro-
gram in such a way that a set bit leads to a safety-related error reaction
(shutdown).
Application example:
PNOZmulti Base Unit
PNOZ
ms3p
ms4p
PLC
Drive Contr
ol
M
Enable
Position Control