Power flex 4 single phase to 3 phase VSD.

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  • Donny2derby
    Badcaps Veteran
    • Apr 2023
    • 228
    • Uk

    #1

    Power flex 4 single phase to 3 phase VSD.

    Hi all.

    We've had a drive fail at work. It says it's outputting according to the LCD screen but when tested there's no voltage at all.

    Got it down the workshop for a quick visual but nothing obvious on the caps etc.

    Anyone got any experience with these?

    Thanks.
    Last edited by Donny2derby; 04-02-2024, 05:51 AM.
  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 30965
    • Albion

    #2
    must be shit if it doesnt monitor the outputs!
    got any pcb pictures?

    Comment

    • Donny2derby
      Badcaps Veteran
      • Apr 2023
      • 228
      • Uk

      #3
      Originally posted by stj
      must be shit if it doesnt monitor the outputs!
      got any pcb pictures?
      😂😂 they’re the easiest, simplest, most basic drive you could imagine! 2 wire control with a potentiometer which utilises an output for the common.

      But the advantage they have is that even the simplest of simpletons could figure out how to wire them up.

      I had a go at disassembly earlier and they’re the equivalent of a moulded plug on a domestic appliance. They simply can’t be taken apart for the end user to be able to attempt any sort of repair!

      Thanks for your input though😁

      Comment

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