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Megan MannAug 16, 2025
What to do if PWR LED is off on LSIS Controller?
- LLeslie YatesAug 16, 2025
If the PWR LED is off on your LSIS Controller, first verify that the rated voltage is being supplied to the PLC. If the voltage supply is normal, it may indicate a hardware problem. Contact an A/S office or customer center for assistance.