Mitsubishi Electric FR-A820-00046 Instruction Manual page 346

Position control under vector control and PM sensorless vector control
Home position return error
● If home position return is not normally completed, the following warnings appear on the opera-
tion panel.
Operation
panel
indication
HP1
HP2
HP3
Tab. 5-58:
● The Home position return failure (ZA) signal is output while the home position return warning is
occurring. To use the ZA signal, set "56 (positive logic) or 156 (negative logic)" in any of Pr. 190 to
Pr. 196 (Output terminal function selection) to assign the function.
5 - 166
Name
Home position return setting
error
Home position return
uncompleted
Home position return
parameter setting error
Home position return warning
Cause
The home position setting has failed.
Start signal for the point table positioning has turned ON without
completing home position return.
The proximity dog signal is turned OFF during transition from the
home position return speed to the creep speed when home
position return is performed in the dog type or dog type back end
reference .
The position command is given for the motor to reach the post-
dog travel distance during transition from the home position
return speed to the creep speed when home position return is
performed in the count type .
The position command is given for the motor to reach the total of
the post-dog travel distance and home position shift distance
during deceleration from the creep speed after the proximity dog
signal is turned OFF in the dog type back end reference.
The speed did not reach the creep speed in the count type with
front end reference.
An unavailable home position return method is selected.
Parameters