Mitsubishi Electric FR-A800 Series Instruction Manual page 310

 Example 1 of positioning operation using point table (automatic
continuous positioning operation)
The following figure shows an operation example using the following point table.
Point table
1 100
2 50
Position command
speed
0
Target position
Servo ON
(LX)
STF
RH
NOTE
• During continuous operation, the position command speed drops to 0 in each point table operation before starting the next
point table operation.
• During continuous operation, no point table selection signal is received. Select the position feed length using point table before
turning ON the start command. Only the maximum frequency can be changed during operation.
 Example 2 of positioning operation using point table (Automatic loop
positioning operation using the point table selected at the start of the
operation)
The following figure shows a loop operation example using the point table 2 to point table 4 in the following point table. The
operation is started from the point table 2 (start point). Set "12" in the auxiliary function of the point table 4 (end point).
Point table
1 50000
2 70000
3 100000
4 60000
*1 The positioning operation is the loop. To stop the operation, turn OFF the STF (STR) signal, or turn ON the X87 (sudden stop) input signal.
Operation:
1.
The operation is started from the point table 2 (start point).
2.
The operation is switched to the one using the point table 3.
3.
The operation is switched to the one using the point table 4 (end point).
4.
According to the setting in the auxiliary function for the point table 4 (Pr.1237 = "12"), the operation is switched to
the one using the point table 2 selected at the start (loops back to the start point from the end point).
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Target position
Maximum
speed (Hz)
Upper Lower
0 60
0 30
Point table 1
60Hz(Pr.4)
5s
5s
(Pr.1222) (Pr.1223)
6s
(Pr.1226)
Dwell time (Pr.1224)
1000000
ON
ON
ON
Maximum
Target position
speed (Hz)
60
20
10
5
search engine
Acceleration Deceleration
time(s) time(s)
5 5
6 6
Point table 2
30Hz(Pr.5)
6s
(Pr.1227)
Time
500000
Acceleration Deceleration
time (s) time (s)
1 1
2 2
4 4
3 3
5.5 Position control under vector control and PM sensorless vector control
Dwell time
Auxiliary function
(ms)
1 (absolute position,
1000
continuous)
10 (incremental position,
0
individual)
Dwell time
Auxiliary function
*1
(ms)
1 (absolute position,
100
continuous)
11 (incremental position,
100
continuous)
1 (absolute position,
100
continuous)
12 (incremental position,
100
continuous)
5. PARAMETERS
1
2
3
4
5
6
7
8
9
10
309