Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 166

Method -8 and -40 (dog cradle type home position return)
The following figure shows the operation of Homing method -8. The operation direction of Homing method -40 is opposite to
that of Homing method -8.
Statusword bit 10
Target reached
Statusword bit 12
Homing attained
Forward
rotation
Servo motor speed
Reverse
rotation
Z-phase
DOG (Proximity dog)
Controlword bit 4
Homing operation start
• When a home position return is started from the proximity dog
Forward
rotation
Servo motor speed 0 r/min
Reverse
rotation
• When the movement is returned at the stroke end
Forward
rotation
Servo motor speed
0 r/min
Reverse
rotation
Home position
shift distance
*1 This is not available with the software limit.
4 STARTUP
164
4.6 Home position return mode
ON
OFF
ON
OFF
Acceleration time
constant
Home position return speed
0 r/min
3 ms or shorter
ON
OFF
ON
OFF
ON
OFF
Home position
return direction
Home position
shift distance
Proximity dog
Home position return
position data
Deceleration time constant
Proximity dog
Home position
return position data
Home position return start position
Home position
return direction
Home position return
start position
Creep speed
Home position return
position data
Proximity dog
Stroke end
*1
Home position
shift distance