Mitsubishi Q2ACPU User Manual

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22. TROUBLE SHOOTING
6210
[CONTROL WAIT ]
The control system in a redundant system is
switched to the standby system.
(This can be detected from the standby system of
the redundant system.)
■Collateral informationmmon
• Common Information:Reason(s) for system
switching
• Individual Information:–
■Diagnostic Timing
• Always
Check the control system condition.
RUN:
On
ERR.:
Off
CPU Status:
Continue
Q4AR
6220
[CAN'T EXE. CHANGE]
• Since the standby system is in an error or similar
status in the redundant system, the control
system cannot be switched to the standby
system.
• When an attempt was made to execute system
switching, the control system could not be
switched to the standby system due to a network
error of the control system.
(This can be detected from the control system of
the redundant system.)
■Collateral informationmmon
• Common Information:Reason(s) for system
switching
• Individual Information:–
■Diagnostic Timing
• At switching request
Check the standby system condition.
RUN:
On
ERR.:
On
CPU Status:
Continue
6221
[CAN'T EXE. CHANGE]
Switching is disabled because of a bus switching
module error.
(This can be detected from the control system of
the redundant system.)
■Collateral informationmmon
• Common Information:Reason(s) for system
switching
• Individual Information:–
■Diagnostic Timing
• At switching request
This is a bus switching module hardware fault.
(Contact your local Mitsubishi representative.)
6230
[DUAL SYS. ERROR]
The link module mounted on the standby system
CPU module is the remote master station.
■Collateral informationmmon
• Common Information:–
• Individual Information:–
■Diagnostic Timing
• Always
Check the system configuration status.
Error
Code
Error Contents and Cause Corrective Action
LED Status
CPU Status
Corresponding
CPU

Mitsubishi Q2ACPU Specifications

General

Brand	Mitsubishi
Model	Q2ACPU
Category	Controller
Language	English