Mitsubishi Electric MELSERVO-JET MR-JET User Manual page 60

■Method 3 (Homing on positive home switch and index pulse) and Method 5 (Homing on
negative home switch and index pulse)
The following figure shows the operation of Homing method 3 when the home position shift distance is a positive value. The
homing direction of Homing method 5 is opposite to that of Homing method 3.
Statusword bit 10
Target reached
Statusword bit 12
Homing attained
Servo motor speed
Z-phase
DOG (Proximity dog)
Controlword bit 4
Homing operation start
• When homing is started from the proximity dog
Servo motor speed
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
Servo motor speed
2 CONTROL MODE
58
2.1 Control mode
ON
OFF
ON
OFF
Acceleration time constant
Forward
rotation
0 r/min
3 ms or shorter
Reverse
rotation
ON
OFF
ON
OFF
ON
OFF
Homing direction
0 r/min
Reverse
rotation
Homing direction
Forward
rotation
0 r/min
Homing start position
Homing speed
Creep speed
Home position
shift distance
Proximity dog
Homing start position
Stroke end
The servo motor stops with [AL. 090].
Deceleration time constant
Homing position data
Proximity dog