Yaskawa MP940 - Manual (Page 428)

Motion Control
11.2.5 Zero Point Return Mode
11-26
Operating Conditions
Input a limit switch signal width at least twice that of the high-speed scan setting.
Ladder Logic Program Example
Fig 11.15 RUN Commands (DWG H01)
The example in the above illustration has been greatly simplified. In actual operation, each
register can be controlled from the user program.
H0110
RUNMOD
⇒ OWC0C0
LSDEC
OBC0C1F
IB00100
RUN
OBC0C10
RUNPB
IB00110
DEND
Set the zero point return mode to
ON.
IB00100: Limit switch signal (DECLS)
Driver RUN command (RUN)
When IB00110 turns ON, the zero
point return operation starts. When
the zero point return operation is com-
pleted, the zero point return comple-
tion signal IBC0C0F (ZRNC) turns
ON.