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

Page 354

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15. ABSOLUTE POSITION DETECTION SYSTEM

M2

M10

C2

M11

T2

M9039

END

5

5

M10

PLS

M11

SET

C2

D7

T2

K1

M11

RST

D100

A0

DMOV

ABS transfer
retry control

ABS transfer retry start pulse

Setting retry flag

Retry counter

Retry wait timer (100ms)

Resetting retry flag

Saving received shift data

Checksum NG

Retry start
pulse

Retry
counter

Retry flag set

Retry wait timer

PC RUN

(Continued from preceding page)

POINT

When absolute position data is received at power ON, for example, if a

negative coordinate position which cannot be handled by the A1SD71 is
detected, the ABS coordinate error (Y4B ON) is generated. If this error is
generated, move the axis into the positive coordinate zone in JOG operation.
Then, turn OFF the servo-on pushbutton switch and turn it ON again.

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