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

Page 316

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15 - 9

15. ABSOLUTE POSITION DETECTION SYSTEM

1) The ready (RD) is turned ON when the ABS transfer mode (ABSM) is turned OFF after

transmission of the ABS data.
While the ready (RD) is ON, the ABS transfer mode (ABSM) input is not accepted.

2) Even if the servo-on (SON) is turned ON before the ABS transfer mode (ABSM) is turned ON,

the base circuit is not turned ON until the ABS transfer mode (ABSM) is turned ON.
If a servo alarm has occurred, the ABS transfer mode (ABSM) is not received.
The ABS transfer mode (ABSM) allows data transmission even while a servo warning is
occurring.

3) If the ABS transfer mode (ABSM) is turned OFF during the ABS transfer mode, the ABS

transfer mode is interrupted and the ABS time-out warning (AL.E5) occurs.

4) The functions of output signals such as ZSP, TLC, D01, and INP change depending on the

ON/OFF state of the ABS transfer mode (ABSM).
Note that if the ABS transfer mode (ABSM) is turned ON for a purpose other than ABS data
transmission, the output signals will be assigned the functions of ABS data transmission.

Output signal

Symbol

Pin No.

ABS transfer mode (ABSM): OFF

ABS transfer mode (ABSM): ON

(Note)

D01

CN1B-4

Positioning completion

ABS data bit 0

ZSP

CN1B-19

Zero speed

ABS data bit 1

TLC

CN1B-6

During torque limit control

Send data ready

(Note)

INP

CN1A-18

Positioning completion

ABS data bit 0

Note. CN1B-4 and CN1A-18 output the same signals. (To enter the positioning completion signal into INPS of the A1SD75,

connect CN1A-18.)