KEYENCE Visual KV Series - Manual (Page 286)

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
DM1484 DM1485 DM1482 DM1481 DM1480
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
DM1484 DM1485 DM1482 DM1481 DM1480
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 PM 262