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- FAQ > Controllers > Programmable Controllers MELSEC > MELSEC-F Series > Main Unit > The power supply lamp of a running programmable controller suddenly turned off or flashes
FAQ
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The power supply lamp of a running programmable controller suddenly turned off or flashes
The power supply lamp of a running programmable controller suddenly turned off or flashes
- Category :
Answer
Check whether the lamp is back to normal after disconnecting the wiring of the "24V" (service power supply) terminal.
If the lamp is back to normal, the service power capacity may be exceeded due to a load short-circuit and too much load current, possibly opearting the protection function.
If the lamp is not back to normal, please consult your local Mitsubishi representative.
If the lamp is back to normal, the service power capacity may be exceeded due to a load short-circuit and too much load current, possibly opearting the protection function.
If the lamp is not back to normal, please consult your local Mitsubishi representative.
- Product Name
- FX1S, FX1N, FX1NC, FX2N, FX2NC, FX3S, FX3G, FX3GC, FX3U, FX3UC
- Product Category
- Main unit
- Series
- MELSEC-F series
