Mitsubishi Electric Melservo-Jet MR-JET-G Series User Manual page 47

■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 homing direction of Homing method 6 is opposite to that of
Homing method 4.
ON
Statusword bit 10
Target reached
OFF
ON
Statusword bit 12
Homing attained
OFF
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
Forward
rotation
Servo motor speed 0 r/min
Reverse
rotation
Home position shift distance
• When the stroke end is detected
Forward
rotation
Servo motor speed 0 r/min
Homing start position
Acceleration time constant
Homing speed
3 ms or shorter
Proximity dog
Homing direction
The servo motor stops with [AL. 090].
Deceleration time constant
Creep speed
Proximity dog
Homing position data
Homing start position
Stroke end
Home position
shift distance
Homing position data
2 CONTROL MODE
45
2.1 Control mode
2