Safeguard controller SIDE A load going up to 94%

Hi,

We have an installation of 22 dual safeguard nodes,six set of redundant connectivity servers with comon xA 4.1 SV.

In one of our node only side A load is going up to 94% and it usually gets normalised with in 40-50 seconds, with in this span of time load gradually increases to 90% and become to normal or current running load (52%)

Anybody has faced such issue ?

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Singh.H Rank: 1140

Asked 3 years ago

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Answers

Have you performed any ANPER Task Load analysis?

With some iterations the analysis shall be able to tell what process (task) that is responsible for the unexpected load increase.

I seem to recollect that SG400 can have an issue with some analogue IO board supervision. There was also some issue with a serial UART on the AC410 main CPU board that could cause load increase - terminating the serial port with a resistor could solve that (or upgrade to a later hardware revision).

Please contact your regional ABB support center for advice.

/Stefan

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