Omron CJ1W-MA - REV 10-2008, Operation Manual

Page: 492 / 644

465
Error Codes Section 12-4
b = Beginning word of Axis Operating Input Areas specified in Common
Para (Axis No.
−
1)
×
25
Error information in this area indicates errors that have occurred in individual
axes.
The Axis error code is indicated as 3
@@@
hex or 4
@@@
hex.
If an Axis Error Flag turns ON, error processing must be performed for the
corresponding axis.
Determine the cause of the error using the indicator display and error code,
isolating the location of the error as either in the PCU or in the Servo Drive/
Machine.
12-4-2 List of Error Codes
PCU Common Errors
The above errors for which the RUN indicator is not lit occur when starting
PCU operations, such as turning ON the power or restarting the Unit. The
PCU system does not start correctly if any of these errors occurs, so the Error
Flags and error codes cannot be checked from the CPU Unit.
Indicator status Category Error
name
Error
code
Probable
cause
Clearing method Operation
after error
RUN ERC ERH ERM MLK
Erro
rs at
po
w
e
ru
p
Not lit Not lit Not lit Not lit Not lit CPU Unit
power
interrup-
tion Power
interrup-
tion --- Power is not
being supplied
correctly to
the CPU Unit. Check the power supply
voltage being supplied to
the CPU Unit and make
sure the correct power is
being supplied. ---
Unit sys-
tem error Watch-
dog timer
operation --- The PCU sys-
tem is not
operating cor-
rectly. Make sure that the PCU
is installed correctly, and
turn the power OFF and
ON again. If the error
occurs again, replace
the PCU. System
stopped
Not lit Not lit Lit Not lit Not lit Setting
error Unit num-
ber error --- The PCU's
unit number is
the same as
another Unit. After changing the unit
number, cycle the power
and create the I/O tables
from the CPU Unit. System
stopped
Unit rec-
ognition
incom-
plete --- The PCU is
not registered
in the CPU
Unit's I/O
tables, or the
registered sta-
tus does not
match. Create the I/O tables for
the CPU Unit again. System
stopped
Data
transfer
error Data
transfer
error --- The transfer of
data between
the PCU and
CPU Unit at
initialization of
the PCU could
not be exe-
cuted cor-
rectly. Make sure that the PCU
is installed correctly, and
turn the power OFF and
ON again. If the error
occurs again, replace
the PCU or CPU Unit. System
stopped
Not lit Lit Not lit Not lit Not lit Unit mal-
function Common
memory
error --- The internal
circuits of the
PCU have
malfunc-
tioned. Replace the PCU. System
stopped
Not lit Lit Lit Not lit Not lit Unit rec-
ognition
error Unit rec-
ognition
error --- The CPU Unit
has not recog-
nized the PCU
correctly. Replace the PCU. System
stopped