Mitsubishi Electric Melservo-Jet MR-JET-G Series User Manual page 63

■Method -11 and -43 (dogless Z-phase reference homing)
The following figure shows the operation of Homing method -11. The homing direction of Homing method -43 is opposite to
that of Homing method -11.
• When homing is performed from near the Z-phase, the homing completion position varies. The
recommended start position for homing can be found by rotating the servo motor about a half-turn away
from the homing direction.
ON
Statusword bit 10
Target reached
OFF
ON
Statusword bit 12
Homing attained
OFF
Acceleration time
constant
Forward
rotation
Servo motor speed 0 r/min
Reverse
rotation
ON
Z-phase
OFF
ON
Controlword bit 4
Homing operation start
OFF
• When the stroke end is detected
Forward
rotation
Servo motor speed 0 r/min
Homing start position
Homing speed
Homing position data
3 ms or shorter
Home position
shift distance
Homing direction
The servo motor stops with [AL. 090].
Deceleration time constant
Creep speed
Stroke end
2 CONTROL MODE
61
2.1 Control mode
2