Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 160

■Method 33 and Method 34 (Homing on index pulse)
The following figure shows the operation of Homing method 34. The operation direction of Homing method 33 is opposite to
that of Homing method 34.
Statusword bit 10
Target reached
Statusword bit 12
Homing attained
Forward
rotation
Servo motor speed
Reverse
rotation
Z-phase
Controlword bit 4
Homing operation start
• When the stroke end is detected
Forward
rotation
Servo motor speed
0 r/min
Home position return start position
■Method 35 and Method 37 (Homing on current position)
The following figure shows the operation of Homing method 35 and Homing method 37. These methods can be performed in
the servo-off status.
Statusword bit 12
Homing attained
Forward
rotation
Servo motor speed
Reverse
rotation
Controlword bit 4
Homing operation start
4 STARTUP
158
4.6 Home position return mode
ON
OFF
ON
OFF
Acceleration time
constant
0 r/min
3 ms or shorter
Home position return
position data
ON Home position shift distance
OFF
ON
OFF
Home position
return direction
ON
OFF
0 r/min
ON
OFF
Deceleration time
constant
Creep speed
Creep speed
Stroke end
The servo motor stops due to
the occurrence of [AL. 90].
Home position return position data