2/7/2015 8:28 AM | |
Posts: 1 Rating: (0) |
I'm having a rather different problem running 2 motors from one VFD. I have one MCP for each motor after the VFD, but the MCPs overheat when running from the VFD and the MCPs trip way before they should, when I bypass the VFD and running straight at 60Hz the MCPs are cool and don't trip and are OK. I'm guessing it has something to do with harmonics that heat up the thermal coils in the MCPs. The current is within range running with VFD or without VFD, so the current is not what is causing the MCPs to trip. To make this run I turned the MCP protection all the way to maximum. I still need this to run this way with a MCP for each motor, I wonder if there are a different type of MCPs that are ok to work after the VFD. -------------- |
Last edited by: Min_Moderator at: 2/9/2015 5:01:37 PMNew subject after splitting |
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