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Unread December 3rd, 2019, 09:41 AM   #1
mad4x4
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Book 0-30v Analog Input

Any ideas on who to convert 0-30v to 4-20mA or 0-10v I know I can use a potential divider with a few resistors but need something that can be "Bought" and rail mounted rather than "made"


Need t get a 24v Battery condition signal into a PLC for monitoring over profibus. Only have spare 4-20mA analog inputs.
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Unread December 3rd, 2019, 09:48 AM   #2
geniusintraining
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Just a simple resistor would get your 30v to 10v, not sure of the size you would need but I go from 0-24vdc to 0-10vdc all the time with a resistor, the size depends on what you are connecting to, mine range from 75 ohm to 300k
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Unread December 3rd, 2019, 09:55 AM   #3
mylespetro
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Not sure if loop powering them would be possible in your situation, but maybe look into Acromag's TT238. Multiple range (+/- 75VDC range in your case) DC voltage input, 4-20mA output.
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Unread December 3rd, 2019, 10:04 AM   #4
parky
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Have a look at these:
https://www.spectra-displays.co.uk/s...gnal-converter
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Unread December 3rd, 2019, 10:06 AM   #5
Aabeck
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Go to this voltage divider calculator.

Need to split 30V into 20V & 10V, then watch the 0-10V side. Since it's only a signal only need to divide 1 watt or 0.01 amps.
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Unread December 3rd, 2019, 10:52 AM   #6
jimtech67
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for those in the USA


https://www.omega.com/en-us/communic...15VAC-65V-4-20
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Unread December 3rd, 2019, 11:19 AM   #7
Levi G
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I have a Weidmuller 1481970000 here that would do just that. Weidmuller 1481970000
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Unread December 3rd, 2019, 03:45 PM   #8
g.mccormick
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Automation Direct has 0-50VDC in 4-20MA out
https://www.automationdirect.com/adc.../vdct050-42-24
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Unread December 5th, 2019, 07:15 AM   #9
mad4x4
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Cheers got a solution
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Unread December 5th, 2019, 07:50 AM   #10
geniusintraining
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Quote:
Originally Posted by mad4x4 View Post
Cheers got a solution
What did you end up doing?
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Unread December 6th, 2019, 04:35 PM   #11
goghie
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Quote:
Originally Posted by geniusintraining View Post
What did you end up doing?
Yes, feedbacks are really appreciated.
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