Mitsubishi QJ71BR11 User Manual

8 TROUBLESHOOTING
MELSEC-Q
8 - 146 8 - 146
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
Error
Code
(SD0)
*1
Error Contents and Cause Corrective Action
Corresponding
CPU
6300
Any of the following errors was
detected in the backup mode.
• The standby system has not started
up in the redundant system.
• The standby system has developed
a stop error in the redundant
system.
• The CPU module in the debug mode
was connected to the operating
control system.
• Check whether the standby system
is on or not, and if it is not on, power
it on.
• Check whether the standby system
has been reset or not, and if it has
been reset, unreset it.
• Check whether the standby system
has developed a stop error or not,
and if it has developed the error,
remove the error factor and restart it.
• When the CPU module in the debug
mode was connected to the control
system operating in the backup
mode, make connection so that the
control system and standby system
are combined correctly.
QnPRH
6310
Any of the following errors was
detected in the backup mode.
• The control system has not started
up in the redundant system.
• The control system has developed a
stop error in the redundant system.
• The CPU module in the debug mode
was connected to the operating
standby system.
• The error occurred at a startup since
the redundant system startup
procedure was not followed.
• The standby system exists but the
control system does not exist.
• Check whether the system other
than the standby system is on or
not, and if it is not on, power it on.
• Check whether the system other
than the standby system has been
reset or not, and if it is has been
reset, unreset it.
• Check whether the system other
than the standby system has
developed a stop error or not, and if
has developed the error, remove the
error factor, set the control system
and standby system to the same
operating status, and restart.
• When the CPU module in the debug
mode was connected to the control
system operating in the backup
mode, make connection so that the
control system and control system
are combined correctly.
• Confirm the redundant system
startup procedure, and execute a
startup again.
QnPRH

Mitsubishi QJ71BR11 Specifications

General

Brand	Mitsubishi
Model	QJ71BR11
Category	Controller
Language	English