Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

Page: 374 / 1218

Position control under vector control and PM sensorless vector control Parameters
5 - 172
If it is set under PM sensorless vector control, Home position return parameter setting error (HP3)
occurs.
6
Count type front end
reference
Deceleration starts at the front end of the proximity dog, and the position is shifted by the post-
dog travel distance and home position shift distance. The position after the shifts is set as the
home position.
Set pulses required for changing the speed from the home position speed to the creep speed or
more as the total of the post-dog travel distance and home position shift amount.
I002826E
NOTE Home position return automatic back-off function
In a system that uses home position return with proximity dog, if the home position return is com-
manded while the motor is in a position within the proximity dog, the motor moves out of the
proximity dog once, then starts deceleration to stop when it comes to the proximity dog again.
The home position return is performed automatically after that.
Pr. 1282 Setting
Home position return
method
Description
Tab. 5-59: Home position return methods (3)
Vector Vector Vector
PM PM PM
0
Home position
return speed
Point table 1
deceleration time
Creep speed
Time
Home position
shift amount
Home
position
Position command
speed
Point table
selection signal
Point table 1
acceleration time
Proximity dog
Proximity dog
signal (X78)
Servo-ON (LX)
Start signal
Post dog travel
distance
X76
Creep speed
Home position return start position
Home position
Home position
return speed
Proximity dog