Inspection And Maintenance - Omron CJ2 User Manual

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Inspection and Maintenance

CJ2 CPU Unit Hardware User's Manual
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
7
7-1

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