14. Adding and Replacing Modules
14-10
14.4 OD.RING module (LQE510-E)
This section explains how to replace an OD.RING module or add a new OD.RING module to the system.
Replacing a module involves removing the existing module and then installing a new one. For details on these
procedures, see
14.4.1
and
14.4.2
respectively.
OD.RING module parameters are registered in the CPU module. Therefore, no parameter setting is required
when replacing the module.
14.4.1 Removing the OD.RING module
(1) Make a note of the information displayed on the indicator of the CPU module, and whether each of its
LEDs(RUN, ALARM, STBY, ERR) is on, off, or blinking. Similarly, make a note of the state of the
LEDs on the OD.RING module.
(2) Slide the LADDER RUN/STOP switch on the CPU module from RUN to STOP, and confirm that
LDRSTP
appears on the indicator.
(3) Use the RAS menu in BASE SYSTEM/S10VE to save the CP and HP error log information for the CPU
module. For details on how to save this information, see
8.4.6.2 RAS menu: Error Log Display
.
(4) Make a note of the state of the MODU No. and CPL No. setting switches on the OD.RING module.
(5) Slide the CPU RUN/STOP switch on the CPU module from RUN to STOP, and confirm that
CPUSTP
appears on the indicator.
(6) Turn off the power switch of the power supply module.
(7) Make a note of the cable connections to the connectors on the OD.RING module. This is so you can
reconnect the cables correctly later.
(8) Disconnect any optical fiber cables connected to the OD.RING module. To protect against dust and dirt,
cover the ends of the optical fiber cables and the connectors on the OD.RING module with dust-proof
caps.
(9) Loosen the module fixing screws(M4) at the top and bottom of the OD.RING module, and remove the
OD.RING module from the mount base.
WARNING
● To avoid accident or electric shock, turn off the power switch on the power supply module before
removing or installing a module.
Notice
● Static electricity might damage a module or cause it to malfunction. Discharge any static electricity
from your body before touching the equipment.
● If you disconnect optical fiber cables from multiple modules at once, communication might be
interrupted. Replace one module at a time.
● If you disconnect an optical fiber cable to replace a module while the ring is broken, communication
will no longer be possible. Before replacing a module, look up the module RAS table and make sure
that the ring is not broken.
● During module replacement, a disconnection will be detected and shown in the RAS table. However,
communication will still take place as normal between the OD.RING modules in other units.
Summary of Contents for S10VE
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