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ZERO POINT RETURN CONTROL
The details and usage of "zero point return control" are explained in this chapter.
Zero point return control includes "machine zero point returns" that establish a machine
zero point without using address data, "data setting method zero point return" that
establishes the stop position of manual operation as a zero point and "high-speed zero
point returns" that store the coordinates established by the machine zero point return,
and carry out positioning
to that position.
Zero point returns carried out by sequence programs from the PLC CPU are explained
in this chapter.
Refer to the AD75 Software Package Operating Manual for details on zero point returns
using the AD75 software package.
8.1 Outline of zero point return control............................................................................... 8- 2
8.1.1
Three types of zero point return control ......................................................... 8- 2
8.2 Machine zero point return ............................................................................................ 8- 4
8.2.1
Outline of the machine zero point return operation ....................................... 8- 4
8.2.2
Machine zero point return method ................................................................. 8- 5
8.2.3
Zero point return method (1): Near-point dog method .................................. 8- 6
8.2.4
Zero point return method (2): Stopper stop method 1) .................................. 8- 8
8.2.5
Zero point return method (3): Stopper stop method 2) ................................ 8- 11
8.2.6
Zero point return method (4): Stopper stop method 3) ................................ 8- 14
8.2.7
Zero point return method (5): Count method 1) ........................................... 8- 16
8.2.8
Zero point return method (6): Count method 2) ........................................... 8- 18
8.3 Data setting method zero point return ....................................................................... 8- 20
8.4 High-speed zero point return ..................................................................................... 8- 21
8.4.1
Outline of the high-speed zero point return operation ................................. 8- 21
8.5 Positioning to the zero point ....................................................................................... 8- 23
Chapter 8
8 - 1
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APPEN-
DICES
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