Mitsubishi Electric MELSERVO-J4 Instruction Manual page 79

General-purpose/multi-network interface ac servo/servo amplifier
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5. CiA 402 DRIVE PROFILE
(d) Method -4 and -36 (stopper type home position return)
The following figure shows the operation of Homing method -4. The operation direction of Homing
method -36 is opposite to that of Homing method -4.
ON
Statusword bit 10
OFF
Target reached
ON
Statusword bit 12
OFF
Homing attained
Forward
rotation
Servo motor speed
0 r/min
Reverse
rotation
Controlword bit 4
ON
Homing operation start
OFF
ON
TLC (Limiting torque)
OFF
Torque limit value
Note 1. When Method -4 is set, the torque limit value of Positive torque limit value (60E0h) is applied. When Method -36 is set, the
torque limit value of Negative torque limit value (60E1h) is applied.
2. If the torque limit value is reached, TLC remains on after the home position return is completed.
Servo motor speed
POINT
Since the workpiece collides with the mechanical stopper, the home position
return speed must be low enough.
Acceleration time
constant
Torque limit value (Note 1)
Home position
return direction
Forward
rotation
0 r/min
Home position return start position
When the stroke end is detected
Home position return speed
3 ms or shorter
5 ms or longer
Stopper time [Pr. PT10]
[Pr. PT11]
Stroke limit
The servo motor stops due to
the occurrence of [AL. 90].
5 - 44
Home position return
position data
Stopper
(Note 2)
Torque limit value (Note 1)

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