20.PROFINET COMMUNICATION
8) Method 24 and Method 28 (Homing without index pulse)
The following figure shows the operation of Homing method 24. The operation direction of Homing
method 28 is opposite to that of Homing method 24.
Home position return speed
Deceleration time
constant
Creep speed
Home position return
position data
Proximity dog
Home position shift distance
+
Travel distance after proximity dog
Servo motor speed
Reverse
rotation
0 r/min
Forward
rotation
Statusw ord bit 10
Target reached
ON
OFF
ON
OFF
Statusw ord bit 12
Homing attained
ON
OFF
ON
OFF
Controlw ord bit 4
Homing operation start
ON
OFF
Z-phase
DOG (Proximity dog)
Acceleration time
constant
3 ms or shorter
Servo motor speed
Reverse
rotation
0 r/min
Forward
rotation
Home position
return direction
Home position return start position
Home position shift distance
+
Travel distance after proximity dog
Home position
return position data
Proximity dog
When a home position return is started from the proximity dog
Servo motor speed
Reverse
rotation
0 r/min
Forw ard
rotation
Stroke end (Note)
Home position
shift distance
Home position
return direction
Home position return
start position
Home position return
position data
Proximity dog
The software limit cannot be used with these functions.
When the movement is returned at the stroke end