IMC102T PCF AC under voltage, auto acknoledge! ??

AG_Serad · ‎Nov 25, 2021

Hello,

I'm using the IMC102T.

I configured to detect the AC under Voltage (180V)

According the user manual, §2.2.2.3, it is say that in case of under or over votlage, the PFC goes to Fault State.

THis is the case.

But when voltage return back over 180V, the fault is acknowledged and the PFC state leaves FAULT to STOP.. Anf the PFC_FaultFlag return to 0!

The UM indicate we must make PFC_FaultClear.

I think the need of clear ourself the fault is a correct behavior.

CUrrently, if a brief under voltage occurs, the PFC goes to fault, then to stop without any means to know what append!

PLease could you check that?

psb · ‎Nov 07, 2022

Hello,

The AC side OVP and UVP are automatically cleared in the FaultFlags variable when the AC RMS voltage is back within the valid range. When a fault is triggered, it would cause the state machine to shift from RUN to FAULT state. When faults are all cleared, it would cause the state machine to shift from FAULT back to STOP state. It requires users to restart the PFC after a fault is cleared.

Best Regards,
Sai

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IMC102T PCF AC under voltage, auto acknoledge! ??

Re: IMC102T PCF AC under voltage, auto acknoledge! ??