Mitsubishi Electric MELSERVO-J4 series, Instruction Manual

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152
4 STARTUP
4.6 Home position return mode
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Method 7 and Method 11 (Homing on home switch and index pulse)
The following figure shows the operation of Homing method 7. The operation direction of Homing method 11 is opposite to
that of Homing method 7.
• When a home position return is started from the proximity dog
• When the movement is returned at the stroke end
*1 This is not available with the software limit.
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
3 ms or shorter
Home position return speed
Deceleration time constant
Home position shift distance
Home position return position data
ON
OFF
Proximity dog
Creep speed
Z-phase
DOG (Proximity dog)
Acceleration time
constant
Home position
return direction
Home position return start position
After retracting to before proximity dog,
the home position return starts from here.
Servo motor speed
Reverse
rotation
0 r/min
Proximity dog
The home position return starts from here.
Home position
return direction
Home position return start position
Servo motor speed
Forward
rotation
Reverse
rotation
0 r/min
Proximity dog
Stroke end *1