Maintenance Inspections - Omron SYSMAC CPM2B Operation Manual

Maintenance Inspections

8-5

Maintenance Inspections

Inspection Items
Inspection items
Power supply Determine whether the voltage fluctu-
ation at the power supply terminals is
within specifications.
Environmental con- Is the ambient temperature inside the
ditions 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 Boards securely installed?
Are all connection cables and connec-
tors 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 (C500-BAT08)
Required Tools
174
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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 condi-
tions, 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
frequent checks are required if the PLC is operated in more demanding condi-
tions.
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 PLC in any way.
Criteria
Within the voltage variation range:
24-V DC model: 20.4 to 26.4 V DC
12-V DC model: 10.8 to 14.4 V DC
0 to 55°C
35% to 85% RH with no condensa-
tion
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:
300,000 operations
Inductive load:
100,000 operations
Mechanical:
10,000,000 operations
5 years
Section 8-5
Remarks
Tester
Thermometer
Hygrometer
Visual inspection
Tester
Phillips screw-
driver
Visual inspection
Phillips screw-
driver
Visual inspection
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