YASKAWA FS100 Maintenance Manual page 117

Alarm Alarm Name Sub
Number Code
8
100 COMMUNICATION 1
ERROR (servo#1)
2
Meaning Cause
An error was detected in Setting error
communications with the I/O
module board connected with 8th
serial bus when the control power
turned ON.
Connection failure
Board failure (I/O module)
Main CPU board failure
The error was detected during the Setting error
check of the serial communication
watchdog data.
Counter value received from
Servo control board is invalid.
Connection failure
Servo control board failure
Main CPU board failure
The error was detected during the Setting error
check of the number of the serial
communications.
Counter value received from
Servo control board is OFF by
one cycle.
Remedy
(1)Check the following settings.
·The rotary switch setting which specifies slot numbers of each I/O module
·I/O module settings in maintenance mode
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, check the connecting or inserting state of the
following cables or connectors.
·IO module cable of the corresponding slot.
·Terminator
·24V power of the corresponding IO module.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the following board. Save the CMOS.BIN
before replace the board to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
(1)Turn the power OFF then back ON.
(2)If the alarm occurs again, replace the controller. Save the CMOS.BIN before
replacement to be safe.
117 of 348