Appendices
A - 124
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
Event name Overspeed Error Event code 08440000 hex
Meaning The encoder detected the overspeed.
Source
EtherCAT Master Function Mod-
ule
Source details
Slave
Detection
timing
Continuously
Error
attributes
Level
Minor fault
Recovery
Error reset
(after cycling
slave power)
Log category
System log
Effects User program Continues. Operation Power drive circuit is OFF
Indicators
EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System
-defined
variables
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
The motor is rotated by external
forces
Take countermeasures so that the
motor is not subjected to external
forces if the motor is rotated by
external forces.
Take countermeasures so that the
motor is not rotated by external
forces.
Encoder failure and false detec-
tion
If this event occurs repeatedly, the
encoder is faulty. Replace the
motor.
None
Attached
information
None
Precautions/
Remarks
AL status code: -, Error No.: 4700 hex
Event name Encoder Memory Error Event code 08450000 hex
Description The encoder detected a non-volatile memory error.
Source
EtherCAT Master Function Mod-
ule
Source details
Slave
Detection
timing
Continuously
Error
attributes
Level
Minor fault
Recovery
Error reset
(after cycling
slave power)
Log category
System log
Effects User program Continues. Operation Power drive circuit is OFF
Indicators
EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System
-defined
variables
Variable Data type Name
None None None
Cause and
correction
Assumed cause Correction Prevention
False detection due to a data
read error that was caused by
excessive noise
If this event occurs after you
cycled the power supply, the
encoder is faulty. Replace the
motor.
None
Non-volatile memory failure
Encoder failure
Attached
information
None
Precautions/
Remarks
AL status code: -, Error No.: 4301 hex