User`s manual

Error code list Troubleshooting
MELSEC System Q, Hardware 11 – 37
11.3.2 Error code list (2000 to 2999)
Error
code
Error contents and cause Corrective action
LED status
CPU
status
Corre-
sponding
CPU
RUN ERR.
2000
UNIT VERFIY ERR.
In a multiple CPU system, a CPU module incom-
patible with the multiple CPU system is moun-
ted.
Collateral information
Common Information:
Module No. (Slot No.); For Remote I/O net-
work: Network No./Station No.
Individual Information: —
Diagnostic Timing
When an END instruction executed
Replace the CPU module incompatible with the
multiple CPU system with a CPU module com-
patible with the multiple CPU system.
OFF/ON Flicker/
ON
Stop/
Continue
(can be set
in the
parameters
at error
occur-
rence)
Qn(H)
(Function
version is B or
later)
QnPH
UNIT VERFIY ERR.
The I/O module status is different from the I/O
module information at power ON.
I/O module (or intelligent function module) is not
installed properly or installed on the base unit.
Collateral information
Common Information:
Module No. (Slot No.); For Remote I/O net-
work: Network No./Station No.
Individual Information: —
Diagnostic Timing
When an END instruction executed
Read the error common information at the GX
(IEC) Developer, and check and/or change the
module that corresponds to the numerical
value (module number) there.
Alternatively, monitor special registers SD150
to SD157 using GX (IEC) Developer, and
check and replace the module where the bit of
its data is "1".
Q00J/Q00/Q01
UNIT VERFIY ERR.
The I/O module status is different from the I/O
module information at power ON.
I/O module (or intelligent function module/spe-
cial function module) not installed properly or
installed on the base unit.
Collateral information
Common Information:
Module No. (Slot No.); For Remote I/O net-
work: Network No./Station No.
Individual Information: —
Diagnostic Timing
When an END instruction executed
Read the error common information at the GX
(IEC) Developer, and check and/or change the
module that corresponds to the numerical
value (module number) there.
Alternatively, monitor special registers
SD1400 to SD1431 using GX (IEC) Developer
and change the output module whose bit has
a value of "1".
When a GOT is bus-connected to the main
base unit or extension base unit, check the
connection status of the extension cable and
the grounding status of the GOT.
Qn(H)
QnPH
QnPRH
QnU
2001
UNIT VERFIY ERR.
During operation, a module was mounted on the
slot where the empty setting of the CPU module
was made.
Collateral information
Common Information: Module No. (CPU No.)
Individual Information: —
Diagnostic Timing
When an END instruction executed
During operation, do not mount a module on the
slot where the empty setting of the CPU module
was made.
OFF/ON Flicker/
ON
Stop/
Continue
(can be set
in the
parameters
at error
occur-
rence)
Q00J/Q00/Q01
(Function
version is B or
later)
QnU
2010
BASE LAY ERROR
More than applicable number of extension
base units have been used.
When a GOT was bus-connected, the CPU
module was reset while the power of the GOT
was OFF.
Collateral information
Common Information: Base No.
Individual Information: —
Diagnostic Timing
At power ON/ At reset
Use the allowable number of extension base
units or less.
Power on the Progammable Controller and
GOT again.
OFF Flicker Stop Q00J/Q00/Q01
(Function
version is B or
later)
QnPRH
Q00UJ-, Q00U-,
Q01U- and
Q02UCPU)
2011
BASE LAY ERROR
The QA1S6B, QA6B or QA6ADP+A5B/
A6B was used as the base unit.
Collateral information
Common Information: Base No.
Individual Information: —
Diagnostic Timing
At power ON/ At reset
Do not use the QA1S6B, QA6B and
QA6ADP+A5B/A6B as the base unit.
OFF Flicker Stop Q00J/Q00/Q01
(Function
version is B or
later)
QnPH
QnPRH
QnU
Tab. 11-4: Error code list (2000 to 2999) for PLC CPUs of MELSEC System Q