When "Etx.cable Err." Occurs - Mitsubishi Q12PRHCPU User Manual

8
TROUBLESHOOTING

8.1.9 When "ETX.CABLE ERR." Occurs

The following shows the flowchart for when "EXT.CABLE ERR." occurs during operation of
the redundant system.
8
- 21 8.1 Troubleshooting Flow
8.1.9 When "ETX.CABLE ERR." Occurs
Error message [EXT.CABLE ERR.]
was detected.
Are main base unit of control
system and Q65WRB connected
by extension cable?
YES
Are main base unit of standby
system and Q65WRB connected
by extension cable?
YES
Turn ON power supplies of control system
and standby system again.
Does [EXT.CABLE ERR.]
occur again?
NO
Completed
Diagram 8.10 Flowchart for when "EXT.CABLE ERR." occurs
* 1 : As for IN1 connector and IN2 connector of the redundant type extension base unit, connect one to
the control system and connect the other to the standby system.
NO
Turn OFF power supply of control system.
Connect OUT connector of main base unit
of control system and IN1 (IN2) connector
by extension cable.*
NO
Turn OFF power supply of standby system.
Connect OUT connector of main base unit
of control system and IN2 (IN1) connector
of Q65WRB by extension cable.
Turn ON power supply of standby system.
YES
Hardware failure of the following modules is
suspected.
CPU module
1
Main base unit or extension base unit
2
Extension cable
3
Consult your local Mitsubishi service
representative, explaining a detailed
description of the problem.
*1