Mitsubishi Electric MELSERVO-J5 MR-J5 Series User Manual page 51

■Method 3 (Homing on positive home switch and index pulse) and Method 5 (Homing on
negative home switch and index pulse)
The following figure shows the operation of Homing method 3. The homing direction of Homing method 5 is opposite to that of
Homing method 3.
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 homing is started from the proximity dog
Homing direction
Servo motor speed 0 r/min
Reverse
rotation
The homing start position is automatically moved back to the position
just before the proximity dog, and homing starts from here.
• When the stroke end is detected
Forward
rotation
Servo motor speed 0 r/min
Homing start position
Homing speed
3 ms or shorter
Home position
shift distance
Proximity dog
Homing direction
The servo motor stops with [AL. 090].
Deceleration time constant
Creep speed
Homing start position
Stroke end
Homing position data
Proximity dog
2 CONTROL MODE
2.1 Control mode [G] [WG]
2
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