Name: Omron NJ Series
Brand: Omron
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NJ-series Troubleshooting Manual (W503)

This section provides information that is required to troubleshoot errors. It introduces

the types of errors that can occur on an NJ-series Controller, the operation that occurs

in response to errors, and the methods you can use to check for errors. Refer to Sec-

tion 2 Error Troubleshooting Methods for information on troubleshooting errors.

1-1 Overview of NJ-series Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1-1-1 Types of Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1-1-2 CPU Unit Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1-2 Fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1-2-1 Types of Fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1-2-2 Checking for Fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1-3 Non-fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1-3-1 Types of Non-fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1-3-2 Checking for Non-fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

1-3-3 Resetting Non-fatal Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

Overview of Errors

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