Re: Phase Perfect Simple
¿ªÔÆÌåÓýI will throw this tid-bit here for someone who might be stuck with PP Simple model that faults every time machine is turned off due to braking or another nuisance fault.This should only be used for a nuisance fault. If one is to take advantage of this, it is imperative that one keeps an eye on the fault log to ensure that a serious fault has not occurred. Imran Malik On Sep 23, 2024, at 10:47?PM, Imran Malik <imranindiana@...> wrote:
? Bruce, I forgot to thank you for sharing the error code. That helped me understand the issue with PP Simple model and braking. I still don¡¯t have enough information to know how Enterprise overcomes this other than the line filter which would help minimize the voltage unbalance during braking. Imran Malik On Sep 23, 2024, at 8:24?PM, Imran Malik <imranindiana@...> wrote: ?Yes Aaron, braking is done by DC injection in Felder machines. At least what I have seen so far. 3 phase AC to DC conversion exists but it costs more. Imran Malik On Sep 23, 2024, at 8:13?PM, Aaron Inami via groups.io <ainami@...> wrote: ? I think I read somewhere that electronic motor breaking in these machines are done by sending flat-line DC current through the motor windings (as opposed to alternating current).? It would make sense that the brake board uses only single-phase power.? There is likely an AC-to-DC power supply on it which really only works with single phase input.
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-Aaron
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imran
