Mitsubishi Electric FR-A820-00046 Instruction Manual page 737

Parameters
Description of orientation operation (Vector control)
● Setting the rotation direction (Pr. 393 "Orientation selection")
Pr. 393 setting
(initial value)
Tab. 5-221: Setting of parameter 393
Orientation from the current rotation direction (Pr. 393 = "0 (initial value)", 10) (Vector control)
● When the orientation command (X22) is input, the motor speed will decelerate from the running
speed to Pr. 351 "Orientation speed." At the same time, the orientation stop position command
will be read in. (The stop position command is determined by the setting of Pr. 350 "Stop position
command selection" and Pr. 360 "16-bit data selection". Refer to the chart below.)
rotation)
rotation)
● When the orientation switchover speed is reached, the encoder Z phase pulse will be confirmed,
and the control will change from speed control to position control (Pr. 362 "Orientation position
loop gain").
● The distance to the orientation stop position is calculated at switching of the control, and the
motor decelerates to a stop with a set deceleration pattern (Pr. 399 "Orientation deceleration
ratio") and enters the orientation (servo lock) state.
● Once in the Pr. 357 "Orientation in-position zone", the orientation complete (ORA) signal is output.
● The home position can be moved using Pr. 361 "Position shift".
FR-A800
Rotation direction
0
Pre-orientation
Forward rotation
1
orientation
Reverse rotation
2
orientation
10 Pre-orientation
Forward rotation
11
orientation
Reverse rotation
12
orientation
Speed
(forward
X22 OFF
ON
OFF
ORA
Speed
(reverse
X22 OFF ON
OFF
ORA
Remarks
Orientation is executed from the current rotation
direction.
Orientation is executed from the forward rotation
direction.
(If the motor is running in reverse, orientation is
executed from the forward rotation direction after
deceleration.)
Orientation is executed from the reverse rotation
direction.
(If the motor is running forward, orientation is
executed from the reverse rotation direction after
deceleration.)
Orientation is executed from the current rotation
direction.
Orientation is executed from the forward rotation
direction.
(If the motor is running in reverse, orientation is
executed from the forward rotation direction after
deceleration.)
Orientation is executed from the reverse rotation
direction.
(If the motor is running forward, orientation is
executed from the reverse rotation direction after
deceleration.)
Fig. 5-254:
Orientation from the current rotation direction
Time
ON
Time
ON
(A) Application parameters
Motor end
orientation
Machine end
orientation
I001583E, I001584E
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