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Home Parker Community Technologies Electromechanical Group Electromechanical Knowledge Base Why does the drive fault to 3 phase-fail after the drive is enabled?
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Why does the drive fault to "3 phase-fail" after the drive is enabled?

The three-phase voltage isn't present at the input of the drive.

  • Verify the 3-phase voltage at terminal L1, L2, and L3
  • Check all fuses (Including the coding fuses on the Power Board). The manual of the 590+ has a power board layout of the drive dependent on the frame size and has a diagram of the fuses that run along the input terminals you should check.
  • A common cause that is application-dependent is an Emergency stop fitted to the system that has cut power to the input terminals. If you have an emergency stop on the system tied to the input mains of the drive ensure that it is not interfering. 
16JUN2016 LS
5JUN19 JD
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