A - 175
 Appendices
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
A-4  Sysmac Error Status Codes
A
A-4-2  Error Descriptions
 
 
Event name EtherCAT Communications Warning Event code 84B00000 hex
Description An EtherCAT communications error occurred more than one time.
Source
EtherCAT Master Function Mod-
ule
Source details
Slave
Detection 
timing
Continuously
Error 
attributes
Level
Observation
*1
*1. You can change the level to minor fault by using Warning Level Change 3 Selection (4020-07 hex).
Recovery
---
Log category
System log
Effects User program Continues. Operation Not affected.
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
An EtherCAT communications 
cable is disconnected, broken, 
short-circuited, or has a contact 
failure in a daisy chain configura-
tion.
Connect the EtherCAT communi-
cations cable securely. If the cable 
is broken, replace it.
Confirm that the EtherCAT com-
munications cable is not broken 
before use, and connect it 
securely.
• In a ring topology configura-
tion, the ring disconnection sta-
tus occurred.
• In a ring topology configura-
tion, the ring disconnection sta-
tus was fixed.
Refer to 13-4 Method for Broken 
Ring Maintenance and Inspection 
on page 13-5 and perform inspec-
tion.
Noise Take noise countermeasures so 
that the noise does not affect the 
EtherCAT communications cable.
Take noise countermeasures so 
that the noise does not affect the 
EtherCAT communications cable.
Failure of the EtherCAT physical 
layer of a Servo Drive
If this event occurs again after you 
performed all corrections shown 
above, replace the Servo Drive.
None
Attached 
information
None
Precautions/
Remarks
AL status code: -, Error No.: B200 hex
Event name Unit Restarted Event code 90A00000 hex
Description Restart was performed.
Source
EtherCAT Master Function Mod-
ule
Source details
Slave
Detection 
timing
Operation by 
user
Error 
attributes
Level
Information
Recovery
---
Log category
System log
Effects User program Continues. Operation Not affected.
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
Restart was performed --- ---
Attached 
information
None
Precautions/
Remarks
AL status code: 8000 hex, Error No.: -