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14. ABSOLUTE POSITION DETECTION SYSTEM
14.11 Absolute position data transfer errors
14.11.1 Corrective actions
(1) Error list
The number within parentheses in the table indicates the output coil or input contact number of the
A1SD75.
Name
Output coil
Description Cause Action
AD75 1PG
(Note)
ABS
communication
error
Y39 Y11 1. The ABS data transfer mode
signal (Y41) is not completed
within 5s.
2. The ready to send signal
(X32) is not turned OFF within
1s after the ABS data request
signal (Y42) is turned ON.
3. The ready to send signal
(X32) remains OFF for longer
than 1s.
1. Wiring for ABS transfer mode
signal, ABS data request
signal, or ready to send signal
is disconnected or connected
to the DOCOM terminal.
Correct the wiring.
2. Programmable controller
ladder program incorrect.
Correct the ladder.
3. Faulty programmable
controller output or input
module.
Change the input or output
module.
4. Faulty printed board in the
servo amplifier.
Change the amplifier
5. Power supply to the servo
amplifier is OFF.
Turn on the power to the servo
amplifier.
ABS data
checksum
error
Y3A Y12
ABS data sumcheck resulted
in mismatch four times
consecutively.
1. Wiring for the ABS data signal
(ABS bit 0 (PF), bit 1 (ZSP)) is
disconnected or connected to
the SG terminal.
Correct the wiring.
2. Programmable controller
ladder program incorrect.
Correct the ladder.
3. Faulty Programmable
controller input module.
Change the input module.
4. Faulty printed board in the
servo amplifier.
Change the amplifier.
Servo alarm Y38 Y10
Alarm occurred in the servo
amplifier.
1. Emergency stop (EMG) of the
servo amplifier was turned off.
After ensuring safety, turn EMG
on.
2. Trouble (ALM) of the servo
amplifier was turned on.
Refer to chapter 9 and take
action.
Note. Refer to (2) of this section for details of error occurrence definitions.
