Home Position Return Retry Function/Dwell Time At The Home Position Return Retry - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

Home position return retry function/dwell time at the home
position return retry
Valid/invalid of home position return retry is set.
When the valid of home position return retry function is set, the time to stop at return of travel direction is set with dwell time at
the home position return retry.
Operation for the proximity dog method home position return by setting "valid" for home position return retry function is shown
below.
• Acceleration time  Deceleration time
Home position
return direction
(5)
(4)
Proximity
dog
The temporary stop is made during
time set in the "dwell time at the
home position return retry".
Valid/invalid of home position return retry function by the home position return method is shown below.
: Valid : Invalid
Home position return methods
Proximity dog method
Count method
Data set method
Dog cradle method
Stopper method
Limit switch combined method
Scale home position signal detection method
Dogless home position signal
reference method
Driver home position return method
The temporary stop is made during
time set in the "dwell time at the
home position return retry".
(1)
(6)
Home
Home position
position
return start
(3)
Zero point
Valid/invalid of the parameter block setting








Operation A
Operation B 

Operation C

(1) It travels to preset direction of
home position return.
(2) If the external upper/lower limit
switch turns OFF before the
detection of proximity dog, a
deceleration stop is made.
(2)
(3) After a deceleration stop, the
temporary stop is made during
time set in the "dwell time at the
home position return retry" and
it travels to reverse direction of
home position return with the
home position return speed.
(4) A deceleration stop is made by
the proximity dog OFF.
External limit switch
(5) After a deceleration stop, the
temporary stop is made during
time set in the "dwell time at the
home position return retry" and
it travels to direction of home
position return.
(6) Home position return ends.
3 PARAMETERS FOR POSITIONING CONTROL
3.4 Home Position Return Data
3
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