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4. OPERATION
(3) Timing chart
The following shows the timing chart that starts after selection of the program including the "ZRT"
command.
ON
OFF
ON
OFF
ON
OFF
ON
OFF
td
ON
OFF
Movement complete (PED)
Home position return
completion (ZP)
Servo motor speed
Z-phase
Proximity dog (DOG)
Forward rotation start (ST1)
Home position
Proximity dog
5ms or more
Parameter No. 41
Acceleration time
constant
Home position return
speed Parameter No. 9
Parameter No. 41
Deceleration time constant
Creep speed
Parameter No. 10
Home position shift
distance Parameter No. 11
Home position address
Parameter No. 42
3ms or less
Forward
rotation
0 r/min
The address on completion of home position return is the value automatically set in parameter No.42
(home position return position data).
(4) Adjustment
In dog type home position return, adjust to ensure that the Z-phase signal is generated during dog
detection. Locate the rear end of the proximity dog (DOG) at approximately the center of two
consecutive Z-phase signals.
The position where the Z-phase signal is generated can be monitored in "Within one-revolution
position" of "Status display".
OF
0655360
ON
Servo motor Z
phase
Proximity dog
(DOG)
Proximity
dog