Danfoss iC7-Automation & iC2-Micro Drive
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Mar 07, 2024 11:03 am
Cause : DC under voltage comes when the DC-link voltage (DC) drops below the undervoltage limit, the drive trips after a fixed time delay. The time delay varies with unit size.
- Check that the supply voltage matches the drive voltage.
- Perform the input voltage test.
- Perform the soft charge circuit test.