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 signal is turned ON, this is regarded as a transmission error and the ABS time- out warning (AL.E5) is output.

ON

ABS transfer mode

OFF

5s

ON ABS request

OFF Signal is not turned ON

ON

Send data ready

OFF

Yes

AL.E5 warning

No

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 signal is turned OFF, this is regarded as the transmission error and the ABS time-out warning (AL.E5) is output.

ON

ABS transfer mode

OFF

5s

ON ABS request

OFF Signal is not turned OFF

ON

Send data ready

OFF

Yes

AL.E5 warning

No

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Mitsubishi Electronics MR-J2S- A instruction manual Transmission error