Recent content by HobbyBrauer

For anyone having EMI issues I highly encourage you to read this manual from Allen-Bradley cover-to-cover. https://literature.rockwellautomation.com/idc/groups/literature/documents/rm/gmc-rm001_-en-p.pdf After reading it, I changed a few things in my panel and it has been rock solid ever...

Here’s a pic. My question is instead of running all of these loops from COM to COM is there a better way?

Yeah I was noticing the same thing. Huge voltage drop on channels 6-8 and I'm using the largest wire gauge possible with the terminal blocks. So I'm assuming you haven't come across a board with a single common? If so, what is my best option here? Maybe a ring circuit with channels 1 and 8...

How is everyone wiring their relay board? I have the recommended 8-channel DIN mountable one from the order list with 24v coils. My issue is that all the devices controlled by it use 24vDC power so I have all the commons on the relay channels daisy chained and the first linked to the 24vDC bus...

@BrunDog Gotcha. I get what the loop would look like but but how do I tell it to only loop for x seconds or x times before exiting going on if the switch state doesn't change?

What is the proper format to script a time delay for a wait command? I am writing my auto brew script and I would like it to be so that when the brew alarm is triggered it waits for me to click continue or auto advances after 5 seconds in certain places. For example, with hop additions when the...

Will definitely try playing with the RTD wires tonight strange though that they are all running parallel but only one of them is displaying the spikes (RTD 1). In terms of separation I tried to layout the bottom rail so as to accomplish this. The far left is RTDs, then analog sensors, then DC...

The entire panel is 240vAC the only item that uses 120v is the glycol chiller so 240v main distribution breakers and then the 120v chiller has a fuse built into the device for protection. The terminal block next to the left hand ssr is not bonding the ground and neutral it simply is acting as a...

Okay so interesting results from tonight's experiments but definitely a step in the right direction. First, isolating the DC ground immediately helped, the intensity and frequency of spikes when switching local inductive loads was drastically reduced. I then traced my wire routing to ensure as...

I agree something is definitely off here. I will snap some photos and upload when I get home tonight. I did pop in a second MOV across the relay contacts for the inductive load (glycol chiller) and this did nothing to reduce them. I'm going to try floating the DC ground tonight as well and see...

@Ozarks_Mountain_Brew I'm lost as well. So your saying you use diodes on signal wires like a check valve would be used in plumbing?

@BrunDog Yes all grounds are tied together and this bus is tied to protective (AC) ground. All the EMI I am seeing is when high-draw inductive devices turn on or off. To me there are two separate things that need addressing. The first is the EMI generated by ac elements connected to the panel...

Where are you placing this diode and what type did you use?

I'm just noticing some RTD spikes (well drops to -196C actually) on my system. I was able to solve my earlier problem with them by installing diodes on my contactors which prevented the spike when shutting down the contactor. However, now I am seeing spikes from all sorts of places. I installed...

It was just the BC application PC was working flawlessly and I did not get any warnings beforehand. What I have found is when I click close application on the windows taskbar it will normally give BC the kick and pop-up with the shut down options which I then cancel out of and goes back to...