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Omron CJ2 - Inspection and Maintenance

Omron CJ2
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7-1
CJ2 CPU Unit Hardware User’s Manual
7
This section describes the inspection and maintenance that is required for CJ2 PLCs.
7-1 Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7-1-1 Inspection Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7-1-2 Unit Replacement Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
7-2 Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7-2-1 Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7-2-2 Operation When Battery Is Exhausted or Not Installed . . . . . . . . . . . . . . . . . . 7-8
7-3 Power Supply Unit Replacement Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10
Inspection and Maintenance

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