Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 155

■Method 8 and Method 12 (Homing on home switch and index pulse)
The following figure shows the operation of Homing method 8. The operation direction of Homing method 12 is opposite to
that of Homing method 8.
ON
Statusword bit 10
Target reached
OFF
ON
Statusword bit 12
Homing attained
OFF
Acceleration time
constant
Forward
rotation
Servo motor speed 0 r/min
Reverse
rotation
ON
Z-phase
OFF
ON
DOG (Proximity dog)
OFF
ON
Controlword bit 4
Homing operation start
OFF
• When a home position return is started from the proximity dog
Home position
return direction
Forward
rotation
Servo motor speed
0 r/min
Reverse
rotation
Home position
shift distance
• 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.
Home position return speed
3 ms or shorter
Proximity dog
Home position return start position
Home position
return direction
Proximity dog
Home position return
Home position return
position data
start position
Deceleration time constant
Creep speed
Proximity dog
Home position
return position data
Stroke end
4.6 Home position return mode
Home position
shift distance
Home position return
position data
*1
4 STARTUP
153
4