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

Page: 738 / 1218

(A) Application parameters Parameters
5 - 536
Orientation from the forward rotation direction (Pr. 393 = "1, 11") (Vector control)
●
This method is used to improve the stopping precision and maintain the mechanical precision
when the backlash is large.
●
If the motor is running in the forward rotation direction, it will make an orientation stop with the
same method as "orientation from the current rotation direction".
●
If the motor is running in reverse, it will decelerate, change to the forward rotation direction, and
then orientation stop will be executed.
Orientation from the reverse rotation direction (Pr. 393 = "2, 12") (Vector control)
●
If the motor is running in the reverse rotation direction, it will make an orientation stop with the
same method as "orientation from the current rotation direction".
●
If the motor is running in forward, it will decelerate, change to the reverse rotation direction, and
then orientation stop will be executed.
P
WARNING:
If the X22 is turned OFF while the start signal is input, the motor will accelerate toward the speed
of the current speed command. Therefore, to stop, turn the forward rotation (reverse rotation)
signal OFF.
Fig. 5-255:
Orientation from the forward rotation direction
I001585E, I001586E
Fig. 5-256:
Orientation from the reverse rotation direction
I001587E, I001588E
Speed
(forward
rotation)
ON
ON OFF
OFF
Speed
(reverse
rotation)
X22
ORA
ON
ON OFF
OFF X22
ORA
Time
Time
Speed
(forward
rotation)
ON
ON OFF
OFF
Speed
(reverse
rotation)
X22
ORA
ON
ON OFF
OFF X22
ORA
Time
Time