Mitsubishi Electric MELSERVO-J4 series, Instruction Manual

Page: 153 / 646

4 STARTUP
4.6 Home position return mode
151
4
■
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.
• When a home position return is started from the proximity dog
• When the stroke end is detected
Home position
shift distance
Proximity dog
3 ms or shorter
Home position return speed
Deceleration time constant
Creep speed
Home position return
position data
Servo motor speed
Reverse
rotation
0 r/min
Forward
rotation
Statusword bit 10
Target reached
ON
OFF
ON
OFF
Statusword bit 12
Homing attained
ON
OFF
ON
OFF
Controlword bit 4
Homing operation start
ON
OFF
Z-phase
DOG (Proximity dog)
Acceleration time
constant
Home position
return direction
Home position return start position Home position
shift distance
Servo motor speed
Reverse
rotation
0 r/min
Home position
return position data
Forward
rotation
Proximity dog
Home position return start position
Home position
return direction
Servo motor speed
Forward
rotation
0 r/min
The servo motor stops due to
the occurrence of [AL. 90].
Stroke end