YASKAWA FS100 Maintenance Manual page 159

Alarm Alarm Name Sub
Number Code
1328 DEFECTIVE ENCODER
1329 DEFECTIVE SERIAL
ENCODER COMMAND
1330 MICRO PROGRAM
TRANSMIT ERROR
1349 POWER LOST
DETECTION
(SERVO)
1352 SERIAL ENCODER
CORRECTION ERROR
Meaning Cause
Sub Code: Signifies the axis in Connection failure
which the alarm occurred
Module failure (encoder)
Servo control board failure
Sub Code: Signifies the axis in Connection failure
which the alarm occurred
Module failure (encoder)
Servo control board failure
Sub Code: Signifies the axis in Servo control board failure
which the alarm occurred
Instant power failure
Sub Code: Signifies the axis in Connection failure
which the alarm occurred
Remedy
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connecting or inserting state of the
following cables.
{Robot axis}
·Cables between the controller and the encoder.
{External axis}
·Cables between the controller and the encoder
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the encoder.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connecting or inserting state of the
following cables.
{Robot axis}
·Cables between the controller and the encoder.
{External axis}
·Cables between the controller and the encoder.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the encoder.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace controller. Save the CMOS.BIN before
replace controller to be safe.
Check if the primary power supply voltage is dropping.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connecting or inserting state of the
following cables.
{Robot axis}
·Cables between the controller and the encoder.
{External axis}
·Cables between the controller and the encoder.
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