4
- 2
4
PROCEDURE FOR STARTING UP A REDUNDANT
SYSTEM
POINT
When switching power on again, switch power on more than 5 seconds after
switching power off. Failure to do so may disable a normal start of the redundant
system because an inrush current of higher than the specified value may flow or
the tracking communication circuit in the CPU module may not be initialized.
Connecting to the PC in which GX Developer is Installed
...Refer to
(1) Start up GX Developer in the GX Developer installed PC.
(2) Connect the PC in which GX Developer is installed to the system A CPU module.
Writing Parameters and Programs to CPU
...Refer to
Write the parameters and programs created with GX Developer to the CPU modules of System A
and System B.
Restarting System A and System B
*3
...Refer to
(1) Power off system A and system B, or toggle RESET/L.CLR switch of CPU module.
(2) Simultaneously power on system A and system B, or simultaneously set the RESET/L.CLR
switches of both CPU modules to reset switch neutral position.
Error Check
...Refer to
Check if the "ERR." LEDs of system A and system B CPU modules are OFF.
If the "ERR." LEDs are ON/flashing, check the error cause using the System Monitor or
diagnostics*
4
of GX Developer, and eliminate it.
Checking the Control System/Standby System
...Refer to
Check the control system/standby system by the "CONTROL" LED status of each CPU module.
Running Standby System (System B) CPU Module
...Refer to
(1) Set the RUN/STOP switch of standby system CPU module (the "CONTROL" LED is OFF) to
the RUN position, and confirm that the "RUN" LED of CPU module is OFF.
(2) Confirm that the "ERR." LED of standby system CPU module is ON.
Confirm that the error cause is "OPE.MODE DIFF. (error code: 6010)" *
5
using the System
Monitor or diagnostics
*4
of GX Developer.
If the error is caused by the parameter or programs related to other than "OPE.MODE
DIFF.", correct the parameters or programs of system A and system B.
