6. SERVO MOTOR DRIVING
b) Automatic repeat positioning operation by incremental value command method
Example 1. Operations when "10" is set to the auxiliary function of point table No. 4
Point table
No.
1
2
3
4
Operation sequence
1) Starting with point table No. 2
2) Executing point table No. 3
3) Executing point table No. 4
4) Executing again point table No. 2 used at start-up when "10" is set to the auxiliary function
of point table No. 4
5) Repeating the above execution in the sequence of 1), 2), 3), 4), 2), 3), 4)
Forward rotation
Servo motor speed
0 r/min
Reverse rotation
Position address
Target point table
Controlword bit 4
(New set-point)
Point actual value
(Note)
Note. "Point actual value" is not outputted in an automatic continuous operation.
Position data
Servo motor
[10
STM
μm]
speed [r/min]
4.00
1500.00
5.00
3000.00
10.00
2000.00
5.00
1000.00
Point table No. 2
Speed
1)
(3000.00)
5.00
0
ON
OFF
Acceleration
Deceleration
time constant
time constant
[ms]
[ms]
200
100
100
150
150
200
300
100
Point table No. 3
2)
Speed
(2000.00)
Point table No. 3
5.00
10.00
2
6 - 58
Dwell [ms]
150
100
200
150
Point table No. 2
Point table No. 4
Speed
3)
(3000.00)
Speed (1000.00)
Speed
(2000.00)
2)
5.00
5.00
15.00
Auxiliary
function
1
3
1
10
4)