Event code Event name Description Assumed cause
Level
Reference
Min Obs Info
088A0000 hex Enable Cir-
cuit Failure
A circuit error was de-
tected in the diagno-
sis of the enable cir-
cuit.
(1) There is a contact failure
on the control terminal block
board.
√
page
A-275
(2) Enable circuit logic error
(3) An enable circuit (safety
stop circuit) failure (single fail-
ure) was detected.
38A50000 hex Locked by
Password
An incorrect user
password was en-
tered more than the
specified number of
times.
(1) User password 1 or 2 was
entered more than the speci-
fied number of times.
√
page
A-276
68460000 hex Motor Over-
load Warning
The current value
reached the overload
warning level.
(1) Motor overload warning
√
page
A-277
68470000 hex
Cooling Fin
Overheat
Warning
The cooling fin tem-
perature rose.
(1) The inverter
’s ambient
temperature exceeds the
specified range.
√
page
A-278
(2) The cooling air passage is
blocked.
(3) The flow volume of the
cooling fan dropped because it
reached the end of life or
failed.
(4) The load is large.
68480000 hex Life Warning The main circuit ca-
pacitor
, PCB electro-
lytic capacitor
, or cool-
ing fan reached the
end of life.
(1) Life warning
√
page
A-279
28130000 hex EtherCAT
Communica-
tions Error
An error occurred in
EtherCAT communi-
cations.
(1) An EtherCA
T communica-
tions cable is disconnected,
broken, short-circuited, or has
a contact failure in a daisy
chain configuration.
√
page
A-280
(2) In a ring topology configu-
ration, the ring disconnection
status occurred or was fixed.
(3) Noise
(4) Failure in the EtherCAT
physical layer of an inverter
28140000 hex Analog Input
Reference
Command
Loss Detect-
ed
The frequency refer-
ence by analog input
was rapidly reduced
to 10% or less.
(1) Reference command loss
detected
√
page
A-281
68490000 hex PID Warning
Output
A warning (absolute
value warning, devia-
tion warning) occurred
in PID control.
(1) PID warning output
√
page
A-281
Appendices
A-217
M1 Series EtherCAT Type User’s Manual (I670)
A-5 Sysmac Error Status Codes
A
A-5-1 Error List