Orientation Control; Pr. 396 To Pr. 399) - Mitsubishi Electric FR-A700 Instruction Manual

Motor brake and stop operation
6.13.6 Orientation control (Pr. 350 bis Pr. 366, Pr. 369, Pr. 393,

Pr. 396 to Pr. 399)

This function is used with a position detector (encoder) installed to the spindle of a machine tool,
etc. to allow a rotation shaft to be stopped at the specified position (oriented). Option FR-A7AP
is necessary. Pr. 350 Stop position command selection is initially set to "9999", orientation con-
trol function is invalid.
Pr.
Name
No.
Stop position command
350
selection
351
Orientation speed
352
Creep speed
Creep switchover
353
position
Position loop switcho-
354
ver position
DC injection brake start
355
position
Internal stop position
356
command
Orientation in-position
357
zone
358
Servo torque selection
Encoder rotation
359
direction
6 - 266
V/F V/F V/F Magnetic flux Magnetic flux Magnetic flux
Initial Setting
Description
Value Range
Internal stop position command
0
(Pr. 356)
External stop position command
9999
1
(FR-A7AX 16-bit data)
9999 Orientation control invalid
Decrease the motor speed to the set
2 Hz 0 to 30Hz value when the orientation command
(X22) is given.
After the speed reaches the orientation
0.5 Hz 0 to 10Hz
speed, the speed decreases to the
creep speed set in Pr. 352 as soon as
the current position pulse reaches the
511
0 to 16383
creep switchoverposition set in
Pr. 353.
As soon as the current position pulse
reaches the set position loop switcho-
96 0 to 8191
ver position, control is changed to
position loop.
After changed to position loop, DC
injection brake is applied and the
5 0 to 255 motor stops as soon as the current
position pulse reaches the set DC
injection brake start position.
When "0" is set in Pr. 350, the internal
position command is activated and the
0
0 to16383
setting value of Pr. 356 becomes a
stop position.
Set the in-position zone at a stop of the
5 0 to 255
orientation.
Functions at orientation completion
1 0 to 13
can be selected.
0
Encoder
Clockwise direction as viewed from
A is forward rotation.
1
1
Encoder
Counter clockwise direction as viewed
from A is forward rotation.
Vector Vector Vector
Parameters referred to
Parameter
Refer to
Section
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