Vibration sensor overflow values

Hello,

I have installed vibration sensor 0ACS100A.00-1 on field for measuring vibrations on generator. For communication module I am using X20CM4810. PLC is configured to be OPCUA server and is sending values every 100ms to other OPCUA clients.

Problem occurs when the sensor starts sending overflow values for this two parameters: RmsRaw and RmsHighFrequency. The values are 256000.0 dor REAL format and they happen almost every day for a period of couple of minutes to half an hour period. The rest of the values reading from sensor are good. Could this problem relate to generator on field or is this some error that sensor is generating based in software?

Also there is no correlation with other values, RMS just randomly goes to overflow and I do not know what causes it.

Hi @Pikaneli ,
Welcome to our B&R community!
Have you installed the latest hw upgrade available for the module X20CM4810?
Which AS version are you using?

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Have you already monitored the other diagnostics variables available on the module?

Ciao
Valerio

Hi,

I have not monitored the other overflow variables and I am not sending them through OPCUA, just the frequency bands and the rest important. If this overflow variables are important I can send them with OPCUA as well next time I go on the field so we can check their values when the overflow of RMS occurs.

Automation studio version is V6 and automation studio HW Upgrade is installed.

Hello @Pikaneli ,

take a look according “Autogain, AutogainDelay and overflow” in the documentation of the X20CM4810 module.
Maybe increasing the AutogainDelay in the configuration of the module can help with your issues.

Automation Help - X20CM4810 - Autogain, AutogainDelay and overflow

Best reagrds,
Florian

I will try that next time i go to the field.

Thank you for your help, and I will keep you updated.