NO4I; Brand Allen Bradley · Allen Bradley. Main Product. Technical Reference. SLC 4-Channel Analog I/O Modules User Manual. Legislation and. Find the Other Automation NO4I-USER-MANUAL at PDF Supply. The new NO4I-USER-MANUAL is available online and will ship today. Download. The new NO4I can be purchase online and your order will ship today. Download the technical manual for wiring and installation instructions.

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You may find the solution to be using a seperate power supply to power the analog loops.

All logos and trademarks are properties of their respective companies. This is with the simulator at the control panel.

I’m having a difficult time with some analogs actually all on an SLC and I’d like you comments and suggestions. Also, don’t rule out the input 1764-no4i. A separate power supply may help solve this, meaning all instruments will take power from this power supply. I’m going to go out on a 146-no4i and suggest that the problem is probably not noise, at least not localized to the current loops.

Grounding, shielding, bad PS. Please read those terms and conditions carefully. By Bob Peterson on 9 March, – 8: I have never ever done that and have never had problems. When you say that you are 5 bits off the expected value, do you mean that, for example, when you are expecting an unscaled value manial binary you get a value of binary ?

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We can’t use any damping or filtering because some of these signals are used for leak detection and damping masks, or at least dampens, leak detection sensing.

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17446-no4i It’s free, and you can customize the content you view, as well as being able to subscribe to threads and topics, getting new posts delivered to your email as they appear. By Joe on 5 March, – Not just a picture from the manufacturer’s website, but the actual piece of equipment you would receive.

If not you might want to disconnect each individual analog and reland one at a time and see if there is one that is causing problem and try with and without an optical isolater on each point. Thank you for submitting your InstraView Request!

By Ron on 9 March, – Due to phasing difference between two different power sources that is one item could be on phase A and other on B.

It also provides 4 analog output channels. Check wiring connections and terminations.

Manuals On-line — I/O Library

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Buying used equipment doesn’t always have to be a shot in the dark. Is this in a panel installation or being bench tested? You have clicked on the “? Are there any junction boxes between the PLC input card and the transmitters? Stock Quick Quote. You had not mentioned if you are using ma or V analog signal from those instruments.

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Please contact us to complete your request. You must be a Control. Use double quotes around phrases, as follows: We appreciate your interest in using our InstraView website! If manjal connect it in simulate using the loop PS we get the same 5-bit noise. Ground loops can be a problem if attached at both ends. You may have some issues with noise nanual the conduit carrying the wire isn’t isolated from say discreet control signals or motor leads.

1746-no4o should be tied to earth ground at one end only, not the PS return, also typically the PS return should be tied to ground as well, unless there is some reason you need it floating.

Help keep our servers running How many transmitters are run off the power supply?