Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 494

Replacing the Duplex Unit
458
Duplex Unit
Standby CPU
CPU
The standby CPU will also stop
(power OFF) when the DPL
Switch is set to NO USE.
Note Once the DPL Switch is set to NO USE, the power to the Duplex
Unit will remain OFF even if the DPL Switch is switched to USE un-
less the Duplex Unit has been removed. If you want to restart the
same Duplex Unit, remove the Duplex Unit, mount it again, and pro-
ceed to step 4.
2. Remove the Duplex Unit. Verify that the new Duplex Unit's DPL Switch is
set to NO USE and mount the new Duplex Unit.
Standby CPU Active CPU
Note When removing and mounting the Unit, move the Unit smoothly so
that it is not disconnected/reconnected repeatedly. After mounting
the Unit, secure it by tightening the mounting screws to the proper
torque.
3. Verify that the new Duplex Unit's LEFT CPU and RIGHT CPU Operating
Switches are both set to USE (supply power to the CPU Units).
Active CPU
CPU
Set the DPL Switch to NO USE.
DPL
The active CPU will continue
operating independently.
Verify that the new Duplex Unit's DPL Switch
is set to NO USE before mounting the Unit.
Section 11-7
DPL
USE USE
NO USE NO USE
Verify that all of the Duplex Unit's
LED Indicators are OFF.
DPL
USE
NO USE