Nidec Control Techniques Digitax-SF DA21223, Instruction Manual

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31
Digitax SF I
nstruction Manual
Operation
６
6. Operation
5. Position Control Mode
5.
Position Control Mode
Example of Operation 4 Continuous Speed Changes (Positioning
in the
Opposite Direction)
This procedure executes a series of positioning motion
following
the point numbers
in order
.
Motion instructions per point numbers are executed with no interruptions and the rotational
speed changes continuously. Positioning motion will continue up to (not including) the point
number whose Running Motion is “single”.
Set Running Motion of all enabled point numbers = “continuous”, and specify the first point
number for turning on CW drive signal PCSTART1.
For this motion group, set Dwell Time = 0 ms.
Example of Point Table Setting (for motion with continuous speed changes in reverse direction)
No. Position Rotational
Speed
[
rpm
]
Acceleration
Time
[ms]
Deceleration
Time
[ms]
Dwell Time
[ms]
Command
Method
Running
Motion
Positioning
Complete
[pulse]
Enable/
Disable
1 5,000 300 100 200 0 Relative
continuous
20 enable
2 3,000 200 (disable) (disable) 0 Relative
continuous
20 enable
3 -4,000 100 (disable) (disable) 20 Relative single 20 enable
For the last enabled point number, set Running Motion = “single”.
The acceleration/deceleration setting of the first point number that is selected upon CW start PCSTART1 ON will
be applied, and the settings of subsequent point numbers will be discarded.
ON
−
Input
PCSEL1…4
Input
(Output)
MEND
PCSTART1
ON
OFF
OFF
0 [
rpm
]
ON
OFF
ON
1
Point
No.1
Point
No.3
Command
Point
No.2
(Output)
PM1…3
1
1
1 2 3
OFF
Input
SVON
−
0 [pulse]
0
0
0
Signal Name Description Chart
State
of Servo
Select
Point No.
Start
Motor
Rotational
Speed
Position
Error
Motion
Complete
Point No.
Rotational Speed No.3
Rotational Speed No.1
Rotational Speed No.2
Acceleration Time No.1
Positioning Complete
No.3
(Waiting for Positioning
Complete)
Dwell Time
No.3
Deceleration Time No.1
Parameter No. 644.0＝0
Parameter No. 644.0＝1
Parameter No. 644.0＝2