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Absolute position detection system – MITSUBISHI ELECTRIC MELSERVO MR-J2S- A User Manual

Page 361

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15. ABSOLUTE POSITION DETECTION SYSTEM

M11

M10

Y31

X22

M12

Y32

X22

Y32

X22

T200

4

4

5

5

Y32

RST

M12

PLS

Y32

SET

T200

K1

M9

M6

K1

D9

K0072

H0000

DFROP

D3

D3

K

D*P

D3

D9

D3

D P

M6

M24

M8

SET

K1

D3

K1154

H0000

DTOP

K1

K9003

K1150

H0000

TO

Y10

SET

Y10

X1

X4

XA

Y10

RST

12)

13)

15)

14)

7)

ABS request
control

Restoring absolute
position data.

Writing absolute
position data to
A1SD75

ABS request reset

ABS 2 bits request

ABS request set

10ms delay timer

Transmitted data read enabled

*1: Reading A1SD75 home
position address (Note2)

Inserting constant K for conversion

into the unit of feed per pulse

Adding home position address
to absolute position

ABS data ready

*1: Changing X-axis current

*1: Writing No. 9003 data for

Positioning start

Switching start signal off on
completion of positioning

(Continued from preceding page)

(To be continued)

ABS 2 bits
completion

Checksum 2 bits completion

ABS transfer
mode

Ready to send
ABS data

ABS 2 bits request

ABS request

Ready to send ABS data

10ms delay timer

Checksum
OK

(Note1)

Checksum
OK

Change
flag

Positioning
start

Start com-
pletion

BUSY

Error detection

Note1. When the unit setting parameter value of the A1SD75 positioning module is changed from "3" (pulse) to "0" (mm), the

unit is 0.1 m for the input value. To set the unit to 1 m, add this program to multiple the feed value by 10.
2. The home position address loaded from flash ROM of normal positioning module can be obtained.
For updating the home position address by the home position setting,
refer to (2)(f)Data set type home position return in this Section.

position

changing current value