Author Topic: Bench Testing AC Transducer  (Read 1293 times)

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Offline am1Topic starter

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Bench Testing AC Transducer
« on: April 01, 2024, 04:35:04 pm »
Hi all,

I have a AC current transducer that I want to bench test to ensure I am getting a 4-20mA output. I am using a AE001 unit. It is very simple, with only an M12 cable that I have wired the following way: L+ on 24V supply of PLC (brown wire) , L- on GND of PLC (blue wire) , and IO-Link output of PLC (black wire). I am using an X20DS4387 IO-link module. When I wire and power my PLC, I get no output when live monitoring my PLC. I am unsure how to externally bench test this as there are no terminals on this CT like other transducers I have worked with.
(https://autosen.com/en/Condition-Monitoring/AC-current-sensors/Current-sensor-with-IO-Link-AE001)

For context I previously used an ACT050-42L-F with an IFM DP2200 wired the same way to my PLC that worked well. With no load, I see an output of 4.0 mA. My goal is two eliminate these two components with this one sensor.  I am new to instrumentation so all advice is appreciated. Thanks!

I do not have a lot of testing/measuring instruments aside from a basic MM, basic signal generator, and a variable PS. See below:

https://www.amazon.com/Adjustable-Generator-Simulator-Controller-Calibration/dp/B0991ZSBHJ/

https://www.amazon.com/SHNITPWR-Universal-Adjustable-Switching-100V-240V/dp/B08N4R48LJ/
« Last Edit: April 01, 2024, 04:51:38 pm by am1 »
 

Offline jwet

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Re: Bench Testing AC Transducer
« Reply #1 on: April 01, 2024, 06:01:11 pm »
I looked at Manual, black wire is the IO-Link out (Out 1).  4-20 mA is on out 2, the white wire.
 

Offline am1Topic starter

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Re: Bench Testing AC Transducer
« Reply #2 on: April 01, 2024, 06:35:02 pm »
Ah, I was was under the impression that the IO-link output would take take of the signal conversion of 4-20 to a IO signal. Unfortunately the only analog input module I have is for +/-10V signals (X20AI4222). I have this IO-Link module (X20DS4387) that can operate as IO-link or standard input/outputs, so I wanted to see if it would be possible to get my output while eliminating the converter. But I guess a convertor is needed if I am using this hardware?
 

Offline jwet

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Re: Bench Testing AC Transducer
« Reply #3 on: April 01, 2024, 07:07:22 pm »
A work around could be a 500 ohm precision resistor across your input. 
 
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