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How to connect Liquiphant FTL 20 to S7 SM321 32xDi 24V DC

2/5/2008 9:24 AM	Rate (0)
MGT2 Posts: 5 Rating: (0)	Hello, I have probably very simply question. Could you help me and provide schema of wiring conection between SM 321 32xDI module and E+H liquiphant FTL20 (24 DC V). As I understand this is 3-wire level swicth or I am wrong???? How to connect this swich to digital imput card?? Where should be connected additional (R=external load) ?? You can find plug drawing in attachment Thanks in advance Attachment eh.JPG (588 Downloads)
MGT2 Posts: 5 Rating: (0)
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2/5/2008 1:54 PM	Rate (0)
DenisM Posts: 7 Rating: (0)	as i can see, this is typical 3 wire connection + (1)and -(2) of the source, and +(3) of the signal with -(2) of the source--- i asume that this is a relay in betwen 3 and 1
DenisM Posts: 7 Rating: (0)	Last edited by: DenisM at: 05.02.2008 14:04
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2/5/2008 2:34 PM	Rate (0)
MGT2 Posts: 5 Rating: (0)	Hi unfortunatlly, I am "green" from this area, could you explain me more clear how this 3- wire switch should be connected?? for what we have this "relay" ???
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2/5/2008 11:26 PM	Rate (0)
Chook Experienced Member Joined: 6/13/2006 Last visit: 9/21/2023 Posts: 201 Rating: (8)	DenisM as i can see, this is typical 3 wire connection + (1)and -(2) of the source, and +(3) of the signal with -(2) of the source--- i asume that this is a relay in betwen 3 and 1 Yes, I'm aslo thinking that way Many Thanks chook
	[IMG]http://i17.tinypic.com/66b7jas.jpg[/IMG]
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2/6/2008 9:27 AM	Rate (0)
DenisM Posts: 7 Rating: (0)	in this mometnt i'm in germany so i don't have a full connection to interent and don't have anyone to ask of my coleagues. If this is level switch then you connect pin 3 and 2 to a something, as told i don't have a right documentation and i wouldn't want to say something wrong. relay is for switching, it is a level SWITCH? isn't it?
DenisM Posts: 7 Rating: (0)
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2/6/2008 11:23 AM	Rate (0)
MGT2 Posts: 5 Rating: (0)	Yes this is level switch. But for what to use this relay?? It is realy necessary?? and how (+) and (-) should be connected to PLC card?? At from should come 24 volts?? I supose that I now but I would like to confirm only my information. Thanks in advance.
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2/6/2008 12:45 PM	Rate (0)
DenisM Posts: 7 Rating: (0)	relay is necessary because of switching, and i think that 24 volts should be conected directly to the PLC card over the switch (so that switch can control the signal) i think that should be the way i scatched (in att) correct me if i'm wrong... Attachment untitled.JPG (632 Downloads)
DenisM Posts: 7 Rating: (0)
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2/6/2008 1:01 PM	Rate (0)
MGT2 Posts: 5 Rating: (0)	You are right. It is exactlly what I am thinking. This clarifing my doubts. Thanks for help and keep well. :)
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