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  1. W

    MARK VIE COMMUNICATION FAULT WITH EX2100 EXCITER

    It would help to know what communication protocol your system is using between the Mark VIe and the EX2100. From what you’ve described, it sounds like the Mark VIe was upgraded, but the EX2100 was not, and I’ve seen communication issues arise when newer controllers interface with older...
  2. W

    EX2100 tripping 41 breaker during generator start up

    Denis, A few thoughts based on what you’re seeing: The 41E breaker disconnects the exciter from the generator. If it’s tripping, it’s worth confirming whether you’re actually losing positive DC output at the moment of the event. The audible hum could point to a rectifier/SCR issue under load...
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