6F3B0253
9. Maintenance and Checks
9.2 Daily checks
! | CAUTION | 1. Pay special attention during the maintenance work to minimize the risk | |
of electrical shock. | |||
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2.Turn off power immediately if the
To maintain the system and to prevent troubles, check the following items on daily basis.
Item |
| Check |
| Corrective measures |
Status LEDs | PWR | Lit when internal 5V is | If the LEDs are not normal, see | |
| (power) | normal. | 10. Troubleshooting. | |
| RUN | Lit when operating |
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| normally. |
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| FLT (fault) | Not lit when operating |
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| normally. |
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Mode control | Check that the mode control switch is | Turn this switch to R (RUN) side. | ||
switch | in R (RUN) side. Normal operation is |
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| performed when this switch is in R |
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| (RUN) side. |
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Input LEDs | Lit when the corresponding input is | • | Check that the input terminal | |
| ON. |
| • | screw is not loose. |
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| Check that the input terminal | |
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| • | block is not loose. |
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| Check that the input voltage is | |
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| within the specified range. |
Output LEDs | Lit when the output is ON and the | • | Check that the output terminal | |
| corresponding load should operate. | • | screw is not loose. | |
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| Check that the output terminal | |
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| • | block is not loose. |
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| Check that the output voltage | |
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| is within the specified range. |
Basic Hardware and Function 277
