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Energy meter Lovato

Hello, I'm a Labview beginner. I need to acquire the pulse output signal from a Lovato DME D300 T2 device with a USB-6001. What is possible and how is the wiring done?
I thank in advance whoever wants to answer.

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Message 1 of 6
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You have to use the counter resource on PFI0/1 to count the pulses from your energy meter.

 

santo_13_0-1631626123686.png

 

I would need to look into your energy meter to suggest the right connection. Maybe someone would else reply before me if they get the time.

 

Santhosh
Soliton Technologies

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Message 2 of 6
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If it can be useful at this link you can find the energy meter manual:

 

https://www.lovatoelectric.com/Download/I332IGB09_12.pdf

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Message 3 of 6
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Not easy though, below are the issues,

  • USB 6001 inputs are only 5V tolerant
  • Your energy meter has two outputs, but they require 10-30V for operation
    santo_13_0-1631639153485.png

     

Do you have an external 12V DC supply that you can use here and a bunch of resistors?

 

Santhosh
Soliton Technologies

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Message 4 of 6
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Your device states 10-30V for operation but worth a try for the below connection

santo_13_0-1631639573155.png

 

Using the output in PNP configuration, use NI MAX test panel to monitor pulse count,

santo_13_1-1631639706722.png

santo_13_2-1631639755504.png

 

 

 

Santhosh
Soliton Technologies

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Message 5 of 6
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Thank you, you are very kind. I will try this setup by running the 5V energy meter. If this does not work, an external power supply with resistors must be provided. I ask you the kindness to post the scheme of this solution as well. Thanks

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