YASKAWA FS100 Maintenance Manual page 160

Alarm Alarm Name Sub
Number Code
1355 SERIAL ENC
MULTITURN LIMIT
ERROR
1400 ENCODER ERROR 1
(CONVEYOR)
Meaning Cause
Connection failure
Module failure
(encoder)
Servo control board failure
Sub Code: Signifies the axis in Connection failure
which the alarm occurred
Connection failure
Module failure
(encoder)
Servo control board failure
An error occurred at conveyor Cable (defect), Module failure
encoder 1. (encoder)
Remedy
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connection and insertion of the following
cables and connectors.
{Robot axis}
·Cable between encoders
·EAXA-CN508
{External axis}
·Cable between encoders
·EAXB-CN0534,535,536
(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, check the connection and insertion of the following
cables and connectors.
{Robot axis}
·Cable between encoders
·EAXA-CN508
{External axis}
·Cable between encoders
·EAXB-CN0534,535,536
(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.
Replace the encoder cable or encoder of the conveyor encoder 1.
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