Mitsubishi Electric FR-A820-00046 Instruction Manual page 370

Position control under vector control and PM sensorless vector control
Position command
Position feed length
Fig. 5-62:
● Set "0" as the dwell time to perform variable speed operation.
Example of positioning operation by point tables (automatic continuous positioning operation
using the point table selected at the start of the operation)
● When the operation is repeated from the point table 2 to 4.
● Setting: The operation is started using the point table 2 (start point). Set "12" in the auxiliary
function of the point table 4 (end point).
Point table
1
2
3
4
Tab. 5-58:
The positioning operation is repeated. To stop the operation, turn OFF the STF (STR) signal, or turn
ON the X87 (sudden stop) input signal.
● Operation sequence
The operation is started using the point table 2 (start point).
The operation is switched to use the point table 3.
The operation is switched to use the point table 4 (end point).
According to the setting in the auxiliary function for the point table 4 (Pr. 1237 = "12"), the
operation is switched to use the point table 2 selected at the start (loops back the start point from
the end point).
Steps
5 - 168
Acceleration time (1 s)
of point table 1
speed
30 Hz
(Pr. 4)
0
50000
0
Servo ON
(LX)
STF
ON
RH
RM
RL
Positioning operation by point tables
Target Maximum
position speed (Hz)
50000 60
70000 20
100000 10
60000 5
Settings for point tables
to are repeated.
Deceleration time (1 s)
of point table 1
20 Hz
(Pr. 5)
10 Hz
(Pr. 6)
30000 20000
50000 80000
ON
ON
Acceleration Deceleration
time (s) time (s)
1 1
2 2
4 4
3 3
5 Hz
(Pr. 24)
60000
100000
Dwell time
Auxiliary function
(ms)
1 (absolute position,
100
continuous)
11 (incremental position,
100
individual)
1 (absolute position,
100
continuous)
12 (incremental position,
100
individual)
Parameters
Time
160000
I002537E