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15. ABSOLUTE POSITION DETECTION SYSTEM
(c) To detect the ABS time-out warning (AL.E5) at the servo amplifier, the time required for the ABS
request signal to go OFF after it has been turned ON (ABS request time) is checked. If the ABS
request remains ON for longer than 1s, it is regarded that an fault relating to the ABS request
signal or the send data ready signal has occurred, and the ABS communication error is generated.
The ABS communication error occurs if the ABS time-out warning (AL.E5) is generated at the
servo amplifier due to an ABS request OFF time time-out.
OFF
ON
OFF
ON
OFF
ON
1s
ABS transfer mode
ABS request
Send data ready
ABS communication
error
The signal does
not go OFF
NO
YES
15.10.2 Error resetting conditions
Always remove the cause of the error before resetting the error.
Output coil
Name
AD71 1PG
Servo status Resetting condition
ABS communication error Y49 Y11 Ready (RD) signal off Reset when servo-on PB (X36)
signal turns off.
For AD71
Reset when servo-on PB (X36)
signal turns from off to on.
ABS checksum error Y4A Y12 Ready (RD) signal on
For FX-1PG
Reset when servo-on PB (X36)
signal turns off.
ABS coordinate error Y4B Ready (RD) signal on Reset when servo-on PB (X36)
signal turns from off to on after a
motion to (
) coordinate is made by
jog operation.
Servo alarm Y48 Y10 Ready (RD) signal on Reset when alarm reset PB turns
on or power switches from off to on.