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SD710 Series Servo Drive User's Manual Chapter 12 Motion Control
20
12.2.7 Sequential operation
Sequential operation (Pn802.X=3 ) is the third operation mode for internal multi-segment positions, starting from Pr1 and
the end segment is controlled by the value of Pn803. For example, if Pn803=4, the sequential multi-segment position
runs from Pr1 to Pr4 when triggered. after the first round, the starting point is controlled by Pn804, and the operation ends
after the first round if Pn804=0 or Pn804>Pn803. If 0 < Pn804 ≤ Pn803, the starting point becomes the path pointed by
Pn804 after the first round. There is no delay time during the sequential multi-segment position operation.
Table 12-7 Example of a Sequential Multi-Segment Position Run
steps
Items
Specific actions
1
Mode
Selection
Pn000.X=0
(control mode is position control )
Pn002.X=2
(Position control command source is internal multi-segment position )
Pn802.X=3
(select sequential operation mode ).
Pn204=0, Pn206=20000
(23-bit encoder motor, electronic gear ratio is 8388608: 20000 ).
2
Terminal
Assignment
Pn601.YX=0x01
(assign terminal X1 as servo enable terminal S-ON ).
Pn604.YX=0x20
(assign terminal X4 as internal position trigger terminal CTRG ).
3
Multi-
segment
position Pr
command
setting
Pn803 = 4
, (the internal multi-segment position endpoint is set to Pr4 ).
Pr1: Pn810=0x0000, Pn811=0x0000, Pn812=100000.
Pr2: Pn814=0x0000, Pn815=0x1111, Pn816=200000.
Pr3: Pn818=0x0000, Pn819=0x2222, Pn81A=300000.
Pr4: Pn81C=0x0000, Pn81D=0x3333, Pn81E=400000.
Acceleration and deceleration time 0 ~ 3, target speed 0 ~ 3, and delay 0 ~ 3 are default
values.
4
Terminal
trigger
sequence
multi-
segment
position
Enable servo; make Pn804=2 (0<Pn804<Pn 803 ), slide CTRG from 0 to 1, then trigger the
single multi-segment operation command. The speed waveform of the operation is shown in
the figure below :
v/rpm
t
100
200
500
1000
5
Modify
Pn804 to
run again
(a) Slide CTRG from 1 to 0 to stop the sequential multi-segment position operation.
Let Pn804 = 5 (Pn804 > Pn803 or Pn804 = 0 ).
The single multi-segment operation command is triggered again and the speed waveform of
the operation is shown in the figure below:
v/rpm
t
100
200
500
1000