Handling When Replacing Units - Omron CRT1 - 10-2008 Operation Manual

Device Maintenance

12-3-3 Handling when Replacing Units

Precautions When
Replacing Units
Settings after Unit
Replacement
502
Inspection Inspection details
item
Installation Has the Unit been
secured?
Are the communica-
tions cable connec-
tors inserted
properly?
Are the external wir-
ing screws loose?
Are the connection
cables damaged?
Networks are constructed from a Master Unit and Slave Units. If a Unit is mal-
functioning, the entire network will be affected. The malfunctioning Unit must
be replaced quickly. To restore network functions as quickly as possible, it is
recommended that spare Units are kept on hand ready to replace malfunc-
tioning Units immediately.
Heed the following precautions when replacing nodes after a periodic inspec-
tion has revealed a problem.
Check that the new Unit does not have errors after replacement.
If returning malfunctioning devices for repair, attach a detailed description of
the malfunction to the device and send the device to the OMRON representa-
tive listed at the end of this manual or to your OMRON representative.
If contacts are defective, wipe them with a clean pure cotton cloth that has
been soaked in industrial alcohol.
After replacing a Unit, make the switch and other settings the same as before
the Unit was replaced.
Criteria Inspection method
No looseness Phillips screwdriver
No looseness Phillips screwdriver
No looseness Phillips screwdriver
No visible damage Visual inspection
Section 12-3