YASKAWA FS100 Maintenance Manual page 158

Alarm Alarm Name Sub
Number Code
1326 DEFECTIVE ENCODER
ABSOLUTE DATA
1327 ENCODER OVER
SPEED
Meaning Cause
Sub Code: Signifies the axis in Connection failure
which the alarm occurred
Module failure (encoder)
Servo control board failure
External environment
Sub Code: Signifies the axis in Connection failure
which the alarm occurred
Encoder failure
Servo control board failure
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)Check the following settings.
Replace the defective motor (encoder).
·Check the position after the alarm.
(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)Check the following settings.
·Check the grounding condition of Manipulator.
·Check whether it is installed into the strong magnetic field.
·Check the position after the alarm.
(1)Turn the power OFF then back ON.
(2)Turn the servo OFF where the axis does not fall off while turning ON the
servo.
(3)Replace the battery of the alarm occurring axis if the alarm and encoder
back-up error occur again.
(4)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
Replace the defective motor (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.
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