Appendices
A - 100
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
A-4 Sysmac Error Status Codes
This section lists and describes the error event codes that you can see in Sysmac Studio.
The errors (events) that can occur in 1S-series AC Servo Drives with Built-in EtherCAT Communica-
tions are given on the following pages.
Event levels are given in the table as follows:
Min: Minor fault level
Obs: Observation
Info: Information
Refer to the NJ/NX-series Troubleshooting Manual (Cat. No. W503) for all of the event codes that may
occur in an NJ/NX-series Controller.
A-4-1 Error List
Event code
(hex)
Event name Description Assumed cause
Level
Refer-
ence
Min
Obs
Info
04B30000 Regeneration Cir-
cuit Error Detected
during Power ON
*1
An error of the Regenera-
tion Circuit was detected at
power ON.
• Power supply voltage is
insufficient at power ON, or
rising slowly.
• Power supply voltage fluctu-
ated at power ON.
• L1, L2, and L3 terminals are
not connected or discon-
nected.
• N1 and N2 terminals are
opened.
• Servo Drive failure.
√ P. A-114
04B50000 Inrush Current Pre-
vention Circuit
Error
*2
An error of inrush current
prevention circuit was
detected.
• Inrush current prevention
circuit failure
√ P. A-116
04B60000 Regeneration Cir-
cuit Error
*2
An regeneration circuit error
was detected.
• There is a short circuit
between B2 and N2/N3.
• Regeneration circuit failure
• Noise into wiring of the
external regeneration regis-
tor.
√ P. A-116
05430000 ESC Error An error occurred in the
EtherCAT slave communi-
cations controller.
• Error of the EtherCAT slave
communications controller
or false detection when the
AL status code is 0051 hex
• Error access from the
non-OMRON EtherCAT
master when the AL status
code is 0050 hex
√ P. A-117
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