Maintenance Inspections |
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Maintenance Inspections |
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| In order that your SYSMAC system operates in optimum condition, be sure to | |||||
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| carry out daily or periodical inspections. |
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Inspection Items |
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| The main system components of a SYSMAC system are semiconductors, and it | ||||||
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| contains few components with limited lifetimes. Environmental conditions, how- | |||||
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| ever, can lead to electrical element deterioration, making regular maintenance | |||||
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| necessary. |
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| The standard period for maintenance checks is 6 months to 1 year, but depend- | |||||
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| ing on the environment checks may need to be more regular. | |||||
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| If the criteria are not met, adjust to within the specified ranges. | |||||
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| Inspection items |
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| Details | Criteria | Remarks | |||
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Power supply |
| Determine whether the | Within the voltage variation | Tester | |||||
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| voltage fluctuation is within | range (see note) |
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| the standard at the power |
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| supply terminal. |
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Environmental conditions |
| Is the ambient temperature | 0 to 55_C |
| Thermometer | ||||
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| inside the panel |
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| appropriate? |
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| Is the ambient humidity | 10% to 90% RH with no | Hydroscope | ||||
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| inside the panel | condensation |
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| appropriate? |
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| Has dirt or dust collected? | None |
| Visual inspection | |||
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I/O power supply |
| Is the voltage fluctuation | Each I/O must conform to | Tester | |||||
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| measured at the I/O | the specifications |
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| terminal within the standard |
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| range? |
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Installation status |
| Are all units securely | Nothing is loose |
| Positive screwdriver | ||||
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| installed? |
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| Are all connection cables | Nothing is loose |
| Visual inspection | |||
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| and connectors inserted |
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| completely and locked? |
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| Are any of the external | Nothing is loose |
| Positive screwdriver | |||
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| wiring screws loose? |
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| Are any of the external | No external abnormalities | Visual inspection | ||||
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| wiring cables frayed? |
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Product service life |
| Contact output relay | Electrical: |
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| Resistance load: 300,000 |
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| operations |
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| Inductive load: 100,000 |
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| operations |
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| Mechanical: |
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| 10,000,000 operations |
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| Note Power supply voltage variation range. |
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| Power supply |
| Allowable voltage fluctuation range | |||
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| 100 to 120 VAC |
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| 85 to 132 VAC | ||
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| 200 to 240 VAC |
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| 170 to 264 VAC | ||
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| 24 VDC |
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| 20.4 to 26.4 VDC | ||
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