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   rec.crafts.metalworking      Metal working and metallurgy      215,319 messages   

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   Message 214,390 of 215,319   
   David Billington to Richard Smith   
   Re: rod-mill project - "mains" electric    
   30 May 25 12:47:04   
   
   From: djb@invalid.com   
      
   On 30/05/2025 10:10, Richard Smith wrote:   
   > That bit of "headroom" "saved the day".   
   > (the device, the VFD, refuses to go above 60Hz output - likely don't   
   > want "the heat" from people turning up at hospital with bits of motor   
   > embedded in them?)   
      
   In my limited experience with 2 VFDs they come with a default maximum   
   output frequency, 50Hz IIRC with mine, which you have to change in the   
   configuration if you want to run faster. The first ABB VFD was changed   
   to 100Hz, the 2nd a Chinese one to 400Hz. RTFM.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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