Mitsubishi Electric Melservo-Jet MR-JET-G Series User Manual page 52

■Method 23 and Method 27 (Homing without index pulse)
The following figure shows the operation of Homing method 23. The homing direction of Homing method 27 is opposite to that
of Homing method 23.
Statusword bit 10
Target reached
Statusword bit 12
Homing attained
Servo motor speed
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 servo motor returns at the stroke end
Servo motor speed
Homing starts from here.
*1 This cannot be used with the software limit.
2 CONTROL MODE
50
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
Homing direction
0 r/min
Reverse
rotation
Homing direction
Forward
Homing start position
rotation
0 r/min
Reverse
rotation
Deceleration time constant
Homing speed
Homing position data
Creep speed
Proximity dog
Homing start position
Proximity dog
Travel distance after proximity dog
+
home position shift distance
Proximity dog
*1
Stroke end