Mitsubishi Electric MELSERVO-MR-J4 GF Series Instruction Manual page 84

■Method 24 and Method 28 (Homing without index pulse)
The following figure shows the operation of Homing method 24. The operation direction of Homing method 28 is opposite to
that of Homing method 24.
Statusword bit 10
Target reached
Statusword bit 12
Homing attained
Servo motor speed
Z-phase
DOG (Proximity dog)
Controlword bit 4
Homing operation start
*1 The home position shift distance can be changed with [Pr. PT07] and [Pr. PT69].
*2 The travel distance after proximity dog can be changed with [Pr. PT09] and [Pr. PT71].
• When a home position return is started from the proximity dog
Home position return direction
Servo motor speed
Home position shift distance
Travel distance after proximity dog
• When the movement is returned at the stroke end
Servo motor speed
Home position shift distance
Travel distance after proximity dog
*1 This is not available with the software limit.
6 SERVO MOTOR DRIVING
82
6.1 Homing mode (hm)
ON
OFF
ON
OFF
Acceleration time
Home position return speed
constant
Forward
rotation
0 r/min
10 ms or shorter
Reverse
rotation
ON
OFF
ON
OFF
ON
OFF
Forward
rotation
0 r/min
Reverse
rotation
+
Proximity dog
Home position return
position data
Forward
rotation
0 r/min
Reverse
rotation
+
Home position shift distance
Deceleration time
constant
Travel distance after proximity dog
Creep speed
Proximity dog
Proximity dog
Home position return position data
Home position return start position
Home position return direction
Home position return
start position
*1
+
*2
Home position return
position data
*1
Stroke end