10 MAINTENANCE AND INSPECTION
10.1 Daily Inspection
The items that must be inspected daily are listed below.
Daily inspection
Item |
| Inspection Item | Inspection | Judgment Criteria | Remedy | |
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| Check that fixing screws | The screws and cover must be installed | Further tighten the | |
1 | Installation of base unit | are not loose and the | ||||
securely. | screws. | |||||
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| cover is not dislocated. | |||
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| Installation of I/O | Check that the module is |
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2 | not dislocated and the unit | The unit fixing hook must be engaged and | Securely engaged | |||
module | fixing hook is engaged | installed securely. | the unit fixing hook. | |||
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| securely. |
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| Check for loose terminal | Screws should not be loose. | Retighten terminal | |
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| screws. | screws | ||
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3 | Connecting conditions | Check distance between | The proper clearance should be provided | Correct. | ||
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| Solderless terminals. | between Solderless terminals |
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| Check connectors of | Connections should no be loose. | Retighten connector | |
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| extension cable. | mounting screws. | ||
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| Power supply | Check that the LED is ON. | The LED must be ON. (Abnormal if the |
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| "POWER" LED | LED is OFF.) |
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| CPU | Check that the LED is ON | The LED must be ON. (Abnormal if the |
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| "RUN" LED | in RUN status. | LED is OFF.) |
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| CPU | Check that the LED is | The LED must be OFF. (Abnormal if the |
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| LED | "ERR." LED | OFF. | LED is ON or flickering.) |
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| CPU | Check that the LED is | The LED must be OFF. (Abnormal if the |
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| "BAT." LED | OFF. | LED is ON.) |
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| indication |
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| The LED must be ON when the input |
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4 |
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| power is turned ON. | Follow Section 10.2. | ||
| Input LED | Check that the LED turns | The LED must be extinguished when the |
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| Module | ON and OFF. | input power is turned OFF. |
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| (Abnormal if the LED does not turn ON or |
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| turn OFF as indicated above.) |
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| The LED turns ON when the output power |
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| is turned ON. |
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| Output LED | Check that the LED turns | The LED must be extinguished when the |
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| ON and OFF. | output power is turned OFF. |
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| (Abnormal if the LED does not turn ON or |
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| turn OFF as indicated above.) |
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10
10 - 2 | 10 - 2 |