Mitsubishi Electric Q26UD(E)HCPU User Manual page 131

No. Name
*4
22)
CONTROL LED
*4
23)
SYSTEM A LED
*4
24)
SYSTEM B LED
*4
25)
TRACKING connector
*1 When a cable is connected to the RS-232 connector at all times, clamp the cable to prevent a poor connection, moving,
and disconnection by unintentional pulling.
The Q6HLD-R2 type RS-232 connector disconnection prevention holder is available as a clamp for RS-232 connector.
*2 Because the DIP switches are located out of reach of fingertips, operate it with a tool such as screwdriver. Careful
attention must be paid to prevent the switch part from being damaged.
*3 Operate the RUN/STOP switch and RESET/L. CLR switch with your fingertips.
To prevent the switch from being damaged, do not use any tool such as screw driver.
*4 Applicable only to the Redundant CPU.
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 turns on in the debug mode.
The LED of the CPU module on the system A side turns on.
On: System A
Flash:
When the tracking cable is disconnected while the system runs normally as the system A.
(It lasts until the system A side tracking cable is connected.)
Off: System B (The SYSTEM B LED turns on.)
Note that this LED turns on in the debug mode.
The LED of the CPU module on the system B side turns on.
On: System B
Flash:
When the tracking cable is disconnected while the system runs normally as the system B
(It lasts until the system B side tracking cable is connected.)
Off: System A (The SYSTEM A LED turns on.)
Note that this LED turns off in the debug mode.
Connector for connecting system A or B with the tracking cable.
CPU module
RS-232 cable
Fixing screw
CHAPTER 6 CPU MODULE
Application
Q6HLD-R2
6
129