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Diane WrightAug 14, 2025
How to fix control power supply undervoltage on Omron R88D-KN ML2 Sries Servo Drives?
- Mmonica03Aug 14, 2025
If you're experiencing control power supply undervoltage with your Omron Servo Drives, start by measuring the voltage between the L1C and L2C lines on the connectors and the terminal block. The issue might stem from a low power supply voltage or a momentary power interruption, so try increasing the power supply voltage. Insufficient power supply capacity can also cause this, especially with inrush current when the main power supply is turned on, suggesting a need to change the power supply. In some instances, the Servo Drive may be faulty due to a circuit issue, requiring replacement.
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