Mitsubishi Electric MELSERVO-J5 MR-J5 Series User Manual page 55

■Method 19 and Method 21 (Homing without index pulse)
The following figure shows the operation of Homing method 19. The homing direction of Homing method 21 is opposite to that
of Homing method 19.
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
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
Homing position data
3 ms or shorter
Proximity dog
Homing direction
The servo motor stops with [AL. 090].
Deceleration time constant
Travel distance after proximity dog
Creep speed
Proximity dog
Homing start position
Stroke end
+
home position shift distance
2 CONTROL MODE
2.1 Control mode [G] [WG]
2
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