
5.3 Examples of Using the Positioning Control Function
Visual KV
Series
5
Chapter 5 Positioning Control
3-262
Ladder example of a return to the zero point
A return to the zero point is performed.
When start signal 0000 turns ON, the machine moves at a high speed in the CCW
direction. When the zero point sensor turns ON, the machine decelerates, moves at
a low speed in the CW direction, then stops in the position at which the zero point
sensor turns OFF (at the end of the CW direction).
■ Program example
Range detected by
zero point sensor
Low speed
Forced stop
Start
Deceleration
and stop
High-speed
0001
0002
0003
0004
0005
0006
0007
0008
0009
0010
0011
0012
0013
0014
0015
0016
0017
0018
0019
2008
2002
EI
1005
SET
HSP
0003
#65535
DW
#00000
DW
#00500
DW
#10000
DW
#00500
DM1484DM1485DM1482DM1481DM1480
DW
0503
RES
2413
RES
1006
RES
2309
RES
1000
DIFU
0000 1000
2309
1007
DIFU
1005 1007
2309
0503
SET
2413
SET
#65535
DW
#00000
DW
#00500
DW
#10200
DW
#00200
DM1484DM1485DM1482DM1481DM1480
DW
1006
1006
2309
2310
1006
END
INT
0003
1005
RES
1006
SET
2308
SET
1005
RETI
ENDH
2308
RES
Return to zero point
Zero point sensor: 0003 Start signal: 0000 Pulse output: 0502
Rotation direction: 0503
Initial setting
Moves at high speed in the CCW direction.
When the zero point sensor turns ON, moves at low speed in the CW direction.
Detects the rising/falling edge of the zero point sensor (003), stops, and
then changes direction.
KVNKA Chap 05.p65 08.3.11, 0:09 PM262
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