Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 154

■Method 7 and Method 11 (Homing on home switch and index pulse)
The following figure shows the operation of Homing method 7. The operation direction of Homing method 11 is opposite to
that of Homing method 7.
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
Servo motor speed 0 r/min
Reverse
rotation
After retracting to before proximity dog,
the home position return starts from here.
• When the movement is returned at the stroke end
Forward
rotation
Servo motor speed
0 r/min
Reverse
rotation
The home position return starts from here.
*1 This is not available with the software limit.
4 STARTUP
152
4.6 Home position return mode
ON
OFF
ON
OFF
Home position return speed
Acceleration time
constant
0 r/min
3 ms or shorter
Home position shift distance
ON
OFF
ON
OFF
ON
OFF
Home position
return direction
Proximity dog
Home position
return direction
Proximity dog
Home position return start position
Deceleration time constant
Creep speed
Home position return start position
Home position return position data
Proximity dog
Stroke end *1