Mitsubishi Q01CPU User Manual page 143

4
HARDWARE SPECIFICATIONS OF THE CPU MODULE
No. Name
*4
21)
BACKUP LED
*4
22)
CONTROL LED
*4
23)
SYSTEM A LED
*4
24)
SYSTEM B LED
25)
TRACKING connector
Table4.8 Part Names
Indicates the backup or separate mode while the system is running normally.
ON (green) : Backup mode
OFF (red) : The status in which control (RUN) cannot be continued by system
switching
ON (orange) : Separate mode
OFF : Debug mode
The LED indication is as shown below when the memory copy from control system to
standby system is executed.
Memory copy executing
Memory copy normally
completed
For the memory copy from control system to standby system, refer to the manual
below.
QnPRHCPU User's Manual (Redundant System)
Indicates the CPU module operates as control system or standby system.
ON : Control system (The standby system is normal and system switching is
available.)
OFF : Standby system
Note that this LED lights up in the debug mode.
The LED of the CPU module on the system A side lights up.
ON : System A
Flicker : The tracking cable is disconnected while the system runs normally as
system A.
(It lasts until the system A side tracking cable is connected.)
OFF : System B (The SYSTEM B LED lights up.)
Note that this LED lights up in the debug mode.
The LED of the CPU module on the system B side lights up.
ON : System B
Flicker : The tracking cable is disconnected while the system runs normally as
system B
(It lasts until the system B side tracking cable is connected.)
OFF : System A (The SYSTEM A LED lights up)
Note that this LED goes off in the debug mode.
*4
Connector for connecting system A or B with the tracking cable (QC TR).
4.3 High Performance Model QCPU, Process CPU and Redundant CPU
Application
In backup mode
Control system Standby system
ON (red) ON (red)
ON (red) ON (red)
4.3.1 Part Names
In separate mode
Control system Standby system
ON (orange) ON (orange)
ON (orange) ON (orange)
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