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Configuring a current sensor for Analgoue Input

Created by: sionshine at: 8/19/2023 2:57 PM (14 Replies)

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8/19/2023 2:57 PM	Rate (0)
sionshine Joined: 12/4/2022 Last visit: 9/5/2024 Posts: 8 Rating: (0)	Hello all. I've purchased a SCT-013-000 100A non-invasive current censor to install on the mains grid side of my electricity supply. It outputs an analogue current of 0-50ma which I need to somehow adapt to the 0-20ma or 0-10v analogue input on my Logo 8 (6ED1052-1CC08-0BA1). The Logo's function is as a valve control unit for a micro hydro scheme and the sensor is required to monitor the exported power. Please could any advise me on how best to achieve this? Thanks in advance.

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8/19/2023 3:11 PM	Rate (1)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 11/18/2024 Posts: 34239 Rating: (4263)	Have you a data sheet of this sensor. You don't write the manufacturer of this sensor. When I search in www i found different specifications of this sensor. If the sensor outputs 0-50 mA then use a 200 Ω resistor. 200 Ω * 0,05 A = 10 V

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8/19/2023 4:01 PM	Rate (0)
sionshine Joined: 12/4/2022 Last visit: 9/5/2024 Posts: 8 Rating: (0)	Thank you for the response. Here is the datasheet. The manufacturer is YHDC What's confusing me is that it doesn't mention a supply voltage. I already have a DC sensor on the inverter which has a 5VDC supply and a 0-2.5v output and that's working fine, but the datasheet for the SCT-013-000 doesn't https://pdf1.alldatasheet.com/datasheet-pdf/view/1155088/YHDC/SCT-013-000.html Thanks again
	Last edited by: sionshine at: 08/19/2023 16:01:52
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8/19/2023 4:14 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 11/18/2024 Posts: 34239 Rating: (4263)	I think the sensor outputs AC, not DC.

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This contribution was helpful to 1 thankful Users sionshine

8/19/2023 5:18 PM	Rate (1)
Ella_68 Gold Member Joined: 6/11/2019 Last visit: 11/18/2024 Posts: 2322 Rating: (102)	Hello sionshine, the sensor cannot be used for the Logo without an additional converter or converter circuit. He's more like an Adoino, RPI or ESP. Better to buy directly what fits the logo according to the norm. An example of this would be the AT-100 B10, or AT-B420L from the AT-B series from LEM. Greetings Ella_68 (translated with Google)

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This contribution was helpful to 1 thankful Users sionshine

8/19/2023 6:15 PM	Rate (0)
sionshine Joined: 12/4/2022 Last visit: 9/5/2024 Posts: 8 Rating: (0)	Greetings Ella_68, I understand thank you. The LEM units seem very expensive at about £100 I have found this which seems more reasonably priced. https://www.ecproducts.co.uk/product/split-core-current-sensor-0-10vdc-output-range-0-100-150-200a-cs-sp10/ Its the split core version I need as I cannot disturb the cables and 100a should give more capacity and resilience the 50a on a domestic supply. So the CS-SP10 version seems like the right one for me Do you think this is suitable? Thanks again sionshine

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8/19/2023 6:33 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 11/18/2024 Posts: 34239 Rating: (4263)	Ella_68 the sensor cannot be used for the Logo without an additional converter or converter circuit. He's more like an Adoino, RPI or ESP. And why you mean this? Do you have experience with Arduino, RPI or ESP? If yes, then tell us more ...

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8/19/2023 11:08 PM	Rate (0)
Ella_68 Gold Member Joined: 6/11/2019 Last visit: 11/18/2024 Posts: 2322 Rating: (102)	sionshine https://www.ecproducts.co.uk/product/split-core-current-sensor-0-10vdc-output-range-0-100-150-200a-cs-sp10/ Yes, that sounds pretty promising and for the money you can't go far wrong. In addition, you have a direct connection to the logo and not some "do-it-yourself" in between. What I personally miss is the information about the dielectric strength (AC/DC) and basic insulation according to IEC 61010-1 standards, as well as the overvoltage category CAT III and other information. I also find the diagram confusing as it starts at 1V. With a tolerance of 1%, you have to decide for yourself whether that's accurate enough for you. It will definitely fit the logo. But keep in mind that the logo can only resolve up to a value of 1000, i.e. in 100mA steps. All I can say about the prices is that quality, longevity and accuracy come at a price. It is not uncommon for the sensors of a controller to be more expensive than the controller itself. I have already installed sensors that cost a 5-digit euro amount... Greetings Ella_68

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8/20/2023 2:36 AM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 11/18/2024 Posts: 34239 Rating: (4263)	ixo65 Ella_68 the sensor cannot be used for the Logo without an additional converter or converter circuit. He's more like an Adoino, RPI or ESP. And why you mean this? Do you have experience with Arduino, RPI or ESP? If yes, then tell us more ... No answer?

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8/20/2023 7:51 AM	Rate (0)
Ella_68 Gold Member Joined: 6/11/2019 Last visit: 11/18/2024 Posts: 2322 Rating: (102)	ixo65 No answer? Why ? , It´s a Logo-Forum !

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