Omron CPM2C Operation Manual page 151

5-6 Maintenance Inspections
Inspection Items
Inspection items
Power supply Determine whether the voltage fluctuation
at the power supply terminals is within
specifications.
Environmental Is the ambient temperature inside the
conditions co d t o s
panel appropriate?
Is the ambient humidity inside the panel
appropriate?
Has dirt or dust collected?
I/O power supply Is the voltage fluctuation measured at the
I/O terminals within the standard range?
Installation status
Are all units securely installed?
Are all connection cables and connectors
inserted completely and locked?
Are any of the external wiring screws
loose?
Are any of the external wiring cables
frayed?
Product service life Contact output relay
Battery (CPM2C-BAT01)
Required Tools
In order for your SYSMAC system to operate in optimum condition, be sure to
carry out daily or periodical inspections.
The main system components of a SYSMAC system are semiconductors, and it
contains few components with limited lifetimes. Poor environmental conditions,
however, can lead to deterioration of the electrical components, making regular
maintenance necessary.
The standard period for maintenance checks is 6 months to 1 year, but more fre-
quent checks are required if the PC is operated in more demanding conditions.
If the criteria are not met, adjust to within the specified ranges.
Details
Standard Tools (Required)
• Screwdrivers (Phillips and flat-blade)
• Voltage tester or digital voltage meter
• Industrial alcohol and a cotton cloth
Measurement Devices (May be Needed)
• Synchroscope
• Cathode-ray oscilloscope
• Thermometer, hygrometer
Note Do not attempt to disassemble, repair, or modify the PC in any way.
Criteria
20.4 to 26.4 VDC

0 to 55 C
10% to 90% RH with no
condensation
None
Each I/O terminal must
conform to the specifications
Nothing is loose
Nothing is loose
Nothing is loose
No external abnormalities
Electrical:
Resistance load:
150,000 operations
Inductive load:
100,000 operations
Mechanical:
20,000,000 operations

2 years at 25 C
Section 5-6
Remarks
Tester
Thermometer
Hygrometer
Visual inspection
Tester
Phillips screwdriver
Visual inspection
Phillips screwdriver
Visual inspection
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