Mitsubishi Q12PRHCPU - 8.1.3 When the SYSTEM A;B LED is flashing

8
TROUBLESHOOTING
8.1 Troubleshooting Flow
8.1.3 When the "SYSTEM A/B" LED is flashing
8 - 8
1
OVERVIEW
2
SYSTEM CONFIGURATION
3
TRACKING CABLE
4
PROCEDURE FOR STARTING UP A REDUNDANT SYSTEM
5
REDUNDANT SYSTEM FUNCTIONS
6
REDUNDANT SYSTEM NETWORKS
7
PROGRAMMING CAUTIONS
8
TROUBLESHOOTING
8.1.3 When the "SYSTEM A/B" LED is flashing
The following flow (Diagram 8.5) is for the case where the control system CPU module
"SYSTEM A/B" LED is flashing while the redundant system is running.
Power on the standby system.
NO
YES
YES
NO
NO
NO
The "SYSTEM A/B" LED is flashing
Power off the standby system.
Has the
tracking cable
been connected to the
control system and standby
system CPU
modules?
NO
Is the tracking cable
connector secured to the
CPU module with
screws?
Is the "SYSTEM A/B"
LED lit?
Secure the tracking cable connector
to the CPU module with screws
( )
Is the "SYSTEM A/B"
LED lit?
Disconnecting the tracking cable from
the control system and standby system
CPU modules
( )
Are there bent pins
on the tracking
cable connector?
YES
YES
YES
Completed
Connecting the tracking cable to the control
system and standby system CPU modules
( )
Connecting the tracking cable
connector to the control system and
standby system CPU modules
( )
Power off the standby system.
2)1)
Section 3.3
Section 3.3
Section 3.3
Section 3.3