Mitsubishi Electric MELSERVO-J4 MR-J4-TM Instruction Manual page 67

6. CONTROL MODE
2) Method 4 (Homing on positive home switch and index pulse) and Method 6 (Homing on negative
home switch and index pulse)
The following figure shows the operation of Homing method 4. The operation direction of Homing
method 6 is opposite to that of Homing method 4.
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
Home position return speed
3 ms or shorter
Home position
return direction
Forward
rotation
Servo motor speed 0 r/min
Reverse
rotation
Home position
shift distance
When a home position return is started from the proximity dog
Forward
rotation
Servo motor speed
0 r/min
Home position return start position
6 - 24
Deceleration time constant
Creep speed
Proximity dog
Proximity dog
Home position
return direction
When the stroke end is detected
Home position
shift distance
Home position return
position data
Home position
return position data
Home position return start position
Stroke end
The servo motor stops due to
the occurrence of [AL. 90].