Troubleshooting a PLC Output

This video shows how to troubleshoot a PLC output. I used a Micrologix 1400 and the program is RSLogix 500. I hope this video helps the watch understand the basic principles of troubleshooting an output on a PLC
Join me as I walk you through common problems you may encounter with PLC outputs and provide step-by-step guidance on diagnosing and fixing them. From understanding error codes to checking wiring connections, we cover it all.
Whether you're a seasoned PLC programmer or just starting out, this video offers valuable insights and practical tips to get your system back up and running smoothly. Troubleshooting PLC outputs doesn't have to be daunting, and with the right knowledge, you can solve issues efficiently.
Stay tuned for real-world examples, troubleshooting scenarios, and expert advice to help you overcome any challenges you may face with your PLC outputs. Don't forget to like, comment, and subscribe for more PLC troubleshooting tips and tricks!
#PLCTroubleshooting #PLCOutputs #PLCProgramming #IndustrialAutomation #TroubleshootingTips #ExpertAdvice #DIYTech
#klettetech
@KletteTech

[@naimhasan2877]

Very good explanation. I like it. Thank you so much for your informative tutorial.

[@renzonieves4156]

Thank you so much; A very clear and slow explanation. Easy to understand, step by step.

[@tektonelec4695]

Great video and on point. During my time in electrical industrial maintenance the most common PLC module we would find failed were both SLC relay output cards as well as Compactlogix. The relay outputs would typically be failed in the closed position especially on power open, power closed valves. Something to keep in mind is that 120V Triac outputs commonly leak current in the off state and can mimic almost full line voltage to a voltmeter with the output in the off state without a load attached.

[@KletteTech]

Well said! And Great advice. Thank you commenting and sharing your knowledge.

[@gechoemiru9931]

That is great. Thank you

[@user-nb7lf5wb4e]

So Super informative video thanks for nice shearing sir 🇵🇰💖

[@tjwiltube]

Nice job, Pat!

[@KletteTech]

Thanks T-Dog.

[@vishnunath5202]

Great video. 👍

[@KletteTech]

Thanks 👍

[@k50159]

Thank you so much

[@KletteTech]

You Welcome

[@mw3blackopsglitches]

Great video!!

[@KletteTech]

Thanks!

[@ilyass_bouarasse]

Thanks for this vidio

[@KletteTech]

Most welcome

[@theelectricianguy]

Good job sir, exactly how I would have done it. I’ve actually ran into this out in the field several times, had 2 output cards with bad relay terminals not putting out voltage. You don’t see it much but I always like to add circuit breakers on my outputs when I build and wire control panels, a lot of times the output in the field could possibly take out the output it’s attached to. Good video!

[@gechoemiru9931]

Is it possible to attach the manual to see it clearly. It will be more clear for me if I can see the wiring diagram.

[@emiliohuerta2658]

thank you so much im between a tech 2 and tech 3 at my profession and had a little hard time understanding this. Now if i may adk a question so in this case if i dont have a laptop available, how do i force the button to stay on while i check?

[@KletteTech]

I do not believe you can. You would have to know the logic that is in the program and activate the inputs

[@alexzhitomirets5864]

Is it common to wire 120V load through the PLC outputs or better to wire a low voltage relay first? Let's say I have an air solenoid valve (120V).

[@scoutsx_d4441]

solenoid valves are inductive loads which will generate back emf. Typically the solenoids come with built in diode protection, but it is always good to put an interposing relay to separate the output from the load. Cheap solution and much safer.

[@alexzhitomirets5864]

Thanks, that's what I was thinking.

[@KletteTech]

Agreed. For simple pilot lights and other low current devices you can wire through the PLC

[@garrettsmith6679]

So you activated the output manually and it’s not coming on so you know it’s not the trigger signal or input to activate that output. But which input is suppose to active that output?

[@KletteTech]

That is determined by the logic that is programmed into RSLogix 500

[@garrettsmith6679]

@@KletteTech so the plc receives data from whatever that light is referencing to? Also how do the inputs work, do they correlate directly with a certain output or do you program any input to whatever output you want? Thanks for the responses

[@daveb9370]

@@garrettsmith6679you can program any input to any output. Another quick test is to use a jumper wire from the correct voltage source, in this case 120 vac, from the input to the output terminal, and if the device works, you know the output is bad.

[@garrettsmith6679]

⁠@@daveb9370right!!

[@garrettsmith6679]

@@daveb9370 right!!