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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 Overcurrent Error Event code 08490000 hex
Meaning The current flowing to the motor exceeded the protection level.
Source
EtherCAT Master Function Mod-
ule
Source details
Slave
Detection
timing
During Servo
ON
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
There is a short-circuit, ground
fault, or contact failure on the U,
V, or W motor cable
Correct the connection of the U, V,
or W motor cable.
Confirm that the motor cables are
not broken and connect them cor-
rectly.
There is a short-circuit on the wir-
ing of External Regeneration
Resistor
Correct the wiring of External
Regeneration Resistor.
Wire the External Regeneration
Resistor correctly when using it.
The insulation resistance failed
between the U, V, or W motor
cable and the motor ground wire
Replace the motor. Confirm that the insulation resis-
tance is insulated between the U,
V, and W motor cable and the
motor ground wire before connect-
ing and using the motor.
False detection due to the noise Take noise countermeasures. Take noise countermeasures
because excessive noise may
cause false detection.
Servo Drive failure If this event occurs again after you
performed all corrections shown
above, replace the Servo Drive.
Do not perform Servo ON/OFF fre-
quently. Doing so may cause a
Servo Drive failure.
Attached
information
None
Precautions/
Remarks
AL status code: -, Error No.: 1400 hex
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