Mitsubishi Electric MELSERVO MR-J3 A Series, Instruction Manual

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14. 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 time-out error (AL.E5) occurs.
4) The functions of output signals such as ABST, ABSB0, and ABSB1 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
CN1 Pin No.
ABS transfer mode (ABSM): OFF ABS transfer mode (ABSM): ON
22 Positioning completion ABS transmission data bit 0
23 Zero speed ABS transmission data bit 1
25 During torque limit control ABS transmission data ready