Mitsubishi Electric 800 Series, Инструкция по эксплуатации, Страница: 474 / 727

(A) Application parameters
PARAMETERS
473
5
GROUP
A
5.14.9
Orientation control
The inverter can adjust the stop position (Orientation control) using a position detector (encoder) attached to a place
such as the main shaft of the machine.
A vector control compatible option is required.
Because
Pr.350 Stop position command selection is initially set to "9999", the orientation control function is invalid.
Pr. Name
Initial
value Setting
range
Description
350
A510

Stop position command
selection
9999
0 Internal stop position command (Pr.356)
1 External stop position command (FR-A8AX 16-bit data)
9999 Orientation control invalid
351
A526

Orientation speed
2 Hz 0 to 30 Hz
Turning ON the X22 signal decelerates the motor speed to the set
value.
352
A527

Creep speed
0.5 Hz 0 to 10 Hz
After the speed reaches the orientation speed, the speed
decreases to the creep speed set in
Pr.352 as soon as the current
position pulse reaches the creep switchover position set in Pr.353 .
353
A528

Creep switchover
position
511 0 to 16383
354
A529

Position loop switchover
position
96 0 to 8191
As soon as the current position pulses reach the set position loop
switchover position, control is changed to the position loop.
355
A530

DC injection brake start
position
5 0 to 255
After the motor moves into the position loop, the motor stops by
the DC injection brake when the current position pulses reach the
specified start position of the DC injection brake.
356
A531

Internal stop position
command
0 0 to 16383
When "0" is set in Pr.350 , the internal position command is
activated and the setting value of Pr.356 becomes the stop
position.
357
A532

Orientation in-position
zone
5 0 to 255 Set the in-position width at a stop of the orientation.
358
A533

Servo torque selection
1 0 to 13 Operation at orientation completion can be selected.
359
C141

852
C241

Encoder rotation
direction
1
0
Set when using a motor for
which forward rotation (encoder)
is clockwise (CW) viewed from
the shaft Set for the operation at 120 Hz
or less.
100
Set for the operation at a
frequency higher than 120 Hz.
1
Set when using a motor for
which forward rotation (encoder)
is counterclockwise (CCW)
viewed from the shaft Set for the operation at 120 Hz
or less.
101
Set for the operation at a
frequency higher than 120 Hz.
360
A511

16-bit data selection
0
0 Speed command When Pr.350 = "1" is set and
the FR-A8AX is mounted
together, set the stop position
using 16-bit data.
Stop position command is
input as binary regardless of
the
Pr.304 setting.
1
16-bit data is used as the
external position command as
is.
2 to 127
Set the stop position by dividing
up to 128 stop positions.
361
A512

Position shift
0 0 to 16383
Shift the home position using a compensation value without
changing the home position of the encoder. The stop position is a
position obtained by adding the setting of
Pr.361 to the position
command.
362
A520

Orientation position loop
gain
1 0.1 to 100
When the servo torque function is selected using Pr.358 , the
output frequency for generating servo torque gradually increases
to the creep speed of
Pr.352 according to the slope set in Pr.362 .
Although the operation becomes faster when the value is
increased, hunting may occur in the machine.
363
A521

Completion signal output
delay time
0.5 s 0 to 5 s
The orientation complete signal turns ON after going into the in-
position width and waiting for the set time. Also, the signal turns
OFF after going out of the in-position width and waiting for the set
time.
V/F V/F V/F Magnetic flux Magnetic flux Magnetic flux Vector Vector Vector
CW
CCW