11 TROUBLESHOOTING

MELSEC-Q

 

Error Code

 

 

Corres-

 

Error Contents and Cause

Corrective Action

ponding

 

(SD0)

1

 

 

 

CPU

 

 

 

 

 

 

 

 

 

Because this is a CPU module hardware error, contact your nearest

 

 

6100

 

A CPU module tracking memory error was detected during initial.

Mitsubishi representative.

 

 

 

To replace the module, replace the standby system CPU first, then

Q4AR

 

 

 

 

 

 

 

 

the control system CPU.

 

 

 

 

 

 

6101

 

The CPU module detected an error during the handshake for

Check the condition of the other stations.

 

 

 

tracking.

 

 

 

 

 

 

 

6200

 

The standby system in a redundant system is switched to the

Check the control system condition.

 

 

 

control system.

Q4AR

 

 

 

 

 

6210

 

The control system in a redundant system is switched to the

Check the control system condition.

 

 

 

 

 

standby system.

 

 

 

 

 

 

 

6220

 

The standby system in a redundant system could not be switched

Check the standby system condition.

 

 

 

from the control system to the standby system because of an error

 

 

 

 

status or other reason.

 

 

 

6221

 

Switching is disabled because of a bus switching module error.

Because this is a bus switching module hardware error, contact

 

 

 

your nearest Mitsubishi representative.

 

 

 

 

 

 

 

6222

 

Switching is disabled because a multiplexed master station of a

Check the remote I/O network setting.

 

 

 

remote I/O network was installed in the standby station during initial.

 

 

 

 

 

 

 

 

 

(1) In a multiple CPU system, at CPU module fault occurred at a

(1) Read the error individual information at a peripheral device,

 

 

 

 

station where "all station stop by stop error of PLC " was

check the error of the PLC resulting in CPU module fault, and

 

 

 

 

selected in the operating mode.

remove the error.

 

 

7000

 

(2) High Performance model QCPU of function version A was

(2) Remove the High Performance model QCPU of function version

 

 

 

loaded in a multiple CPU system.

A from the main base unit.

 

 

 

 

 

 

 

 

In a multiple CPU system, station 1 resulted in stop error at power-

Read the error individual information at a peripheral device, check

QCPU

 

 

 

on and the other stations cannot start. (This error occurred at

the error of the CPU module resulting in CPU module fault, and

 

 

 

stations 2 to 4)

remove the error.

function

 

 

 

(1) There is no response from the target station in a multiple CPU

(1) Reset the High Performance model QCPU and run it again. If

Ver. B

 

 

 

the same error is displayed again, it is a hardware fault of any

or later

 

 

 

system at initial communication stage.

 

7002

 

CPU module. Consult your sales representative.

 

 

 

(2) High Performance model QCPU of function version A was

 

 

 

 

(2) Remove the High Performance model QCPU of function version

 

 

 

 

loaded in a multiple CPU system configuration.

 

 

 

 

A from the main base unit.

 

 

 

 

 

 

 

 

 

There is no response from the target station in a multiple CPU

Reset the High Performance model QCPU and run it again. If the

 

 

7003

 

same error is displayed again, it is a hardware fault of any CPU

 

 

 

system at initial communication stage.

 

 

 

 

module. Consult your sales representative.

 

 

 

 

 

 

 

 

 

(1) Faulty CPU is loaded in a multiple CPU system.

(1) Read the error individual information at a peripheral device, and

 

 

 

 

(2) High Performance model QCPU of function version A is loaded

 

 

 

 

in a multiple CPU system configuration.

change the faulty station.

 

 

7010

 

(An error is detected at the High Performance model QCPU of

(2) Change the station of function version A for function version B.

 

 

 

function version B.)

(3) Do not reset the CPU modules of PLC No.2 to 4. Reset the High

QCPU

 

 

 

 

 

 

(3) In a multiple CPU system, any of stations 2 to 4 was reset during

Performance model QCPU of PLC No.1 and restart the multiple

 

 

 

function

 

 

 

power-on.

CPU system.

 

 

 

Ver. B

 

 

 

(This error occurs at only the station which was reset.)

 

 

 

 

 

or later

 

 

 

In a multiple CPU system, a PLC fault occurred at a station where

Read the error individual information at a peripheral device, check

 

 

 

 

 

7020

 

"all station stop by stop error of PLC" was not selected in the

 

 

 

operation mode.

the error of the CPU module resulting in CPU module fault, and

 

 

 

 

(The error is detected at the High Performance model QCPU of

remove the error.

 

 

 

 

other than the station where the CPU module fault occurred.)

 

 

 

9000

 

Annunciator F was set ON

Read the error individual information at a peripheral device, and

 

 

 

check the program corresponding to the numerical value

 

 

 

 

 

(annunciator number).

 

 

9010

 

Error detected by the CHK instruction.

Read the error individual information at a peripheral device, and

 

 

 

check the program corresponding to the numerical value (error

 

 

 

 

 

number) there.

 

 

 

 

Storage of data onto ROM was completed normally in automatic

 

QCPU

 

 

 

Set the parameter enable drive to standard ROM, switch power on

function

 

9020

 

write to standard ROM.

 

 

again, and perform boot operation from standard ROM.

Ver. B

 

 

 

(BOOT LED also flickers.)

 

 

 

 

or later

 

 

 

 

 

 

 

 

In the multiple CPU system, an error occurred in the CPU module

Use the software package of the corresponding CPU module to

QCPU

 

10000

 

function

 

 

other than the Process CPU/High Performance model QCPU.

check the details of the error that occurred.

Ver. B

 

 

 

 

 

or later

1 Characters in parentheses ( ) indicate the special register numbers where individual information is being stored.

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