Data Logger WiseGuy Series: Part 2

Data Logger WiseGuy Series: Part 2


Video length: 2:42 2 minute read


Hey, Stacey, again, I’m here for part two of our data logging WiseGuy series, and this morning I’m going to talk to you a little bit about how to use this tool for a specific application.

Looking at the data what you see here, is a CSV file that I’ve opened up in Excel. And we’ve got the voltage, the hertz, the amps. The DC bus levels, discharge pressure.

So, I’m going to analyze this from a real-world instance. This was something that happened in the field of one of our Regulator packages. And I’m going to look primarily at the current and the discharge pressure.

So, if we look at this graph, what we’ve done, we’ve created a trend graph with both the discharge pressure, which is the top line, and the motor current, which is the bottom line. And this fault that actually shut the unit down was a low-discharge pressure fault.

So, if you notice the discharge pressure starts varying; it starts oscillating. Until eventually it comes over here to the end and we see a drop off and it hits a low discharge-pressure fault.

So, at the same time that the discharge pressure was varying, the motor current was varying. So, the load was varying with the discharge pressure. So, that tells us a lot.

This was on a positive displacement belt-driven application. So, I know that when I hit that low-discharge pressure fault, my current was also oscillating. So, what that tells me is that more than likely my belt was slipping and that was causing the low-discharge pressure. So, as that load turned, the belt was slipping under the load and, eventually, it started slipping enough that we get a low-discharge pressure fault.

So, it really helped me, by looking at the data, to identify what could be the potential problem. And I was able to go out and check that the belt was worn. They replaced the belt and they were back up and running.

I really hope this was helpful. Keep an eye out for more videos in this series that we’re putting out. I really hope these help you out.

If you have any questions, you can contact us any time. You can call our number at 205-661-3642 or email us at sales@spocautomation.

Thanks a lot.

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