Mitsubishi Electric MELSERVO-J5 - Page 90

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2 CONTROL MODE
2.1 Control mode [G]
■Method -10 and Method -42 (Dog type front end reference homing)
The following figure shows the operation of Homing method -10 when the home position shift distance is a positive value. The
homing direction of Homing method -42 is opposite to that of Homing method -10.
*1 After the front end of the proximity dog is detected, if the rear end of the proximity dog is detected without reaching the creep speed, [AL.
090] occurs. Revise the length of the proximity dog, or revise both the homing speed and creep speed.
• When homing is started from the proximity dog
• When the servo motor returns at the stroke end
*1 This cannot be used with the software limit.
Statusword bit 10
Target reached
Statusword bit 12
Homing attained
0 r/min
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Controlword bit 4
Homing operation start
*1
Deceleration time constant
Homing speed
Travel distance after proximity dog
+
home position shift distance
Acceleration time
constant
Homing position data
Forward
rotation
Servo motor speed
3 ms or shorter
Reverse
rotation
Creep speed
Proximity dog
DOG (Proximity dog)
0 r/min
Homing direction
Proximity dog
Servo motor speed
Reverse
rotation
Homing start position
The homing start position is automatically moved back to the position
just before the proximity dog, and homing starts from here.
0 r/min
Homing direction
Stroke end
*1
Proximity dog
Homing start position
Forward
rotation
Servo motor speed
Reverse
rotation
Homing starts from here.