MITSUBISHI ELECTRIC MELSERVO MR-J2S- A - Manual (Page 319)

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15. ABSOLUTE POSITION DETECTION SYSTEM
(2) Transmission error
(a) Time-out warning(AL.E5)
In the ABS transfer mode, the time-out processing shown below is executed at the servo. If a time-
out error occurs, an ABS time-out warning (AL.E5) is output.
The ABS time-out warning (AL.E5) is cleared when the ABS transfer mode (ABSM) changes from
OFF to ON.
1) ABS request OFF-time time-out check (applied to 32-bit ABS data in 2-bit units check sum)
If the ABS request signal is not turned ON by the programmable controller within 5s after the
send data ready (TLC) is turned ON, this is regarded as a transmission error and the ABS time-
out warning (AL.E5) is output.
OFF
ON
OFF
ON
OFF
ON
5s
ABS transfer mode
ABS request
Send data ready
AL.E5 warning
Signal is not turned ON
No
Yes
2) ABS request ON-time time-out check (applied to 32-bit ABS data in 2-bit units check sum)
If the ABS request signal is not turned OFF by the programmable controller within 5s after the
send data ready (TLC) is turned OFF, this is regarded as the transmission error and the ABS
time-out warning (AL.E5) is output.
OFF
ON
OFF
ON
OFF
ON
5s
ABS transfer mode
ABS request
Send data ready
AL.E5 warning
Signal is not turned OFF
No
Yes