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6ES7 331-1KF01.. och PT100 problems..

Created by: NickeNyfiken at: 6/9/2010 4:15 PM (8 Replies)

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6/9/2010 4:15 PM	Rate (0)
NickeNyfiken Posts: 65 Rating: (1)	Hello Having an AI-Card (6ES7331-1KF01)config for 4-20mA. Have connected an PT100 with converter (0-100C->4-20mA) Feeds the PT100 with 24V+ and the value from PT100 to I+ (ch 2 (12)). Then M- to 0V (ch 2 (15)). The messuringvalue is aprox. 10C* higher than it should be, when i connect an simulator on the card it seems to be OK, there must be som kind of missmatch. the powerunit is grounded on the M-. Any idé??? Hej Har kopplat in en PT100 givare med omvandlare i huvudet 0-100->4-20mA. Problemet är att jag ligger cirka 10 grader över vad jag borde. Har kopplat +24V ut till givaren, svaret tillbaka in på I+ samt minus på M- (ch 2 Uttag 12 och 15). Simulerar jag direkt på kortet verkar det stämma linjärt, någon idé.
NickeNyfiken Posts: 65 Rating: (1)	Last edited by: NickeNyfiken at: 6/9/2010 4:45 PM Last edited by: NickeNyfiken at: 6/9/2010 4:38 PM
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This contribution was helpful to 1 thankful Users UMENCHO

6/9/2010 4:40 PM	Rate (0)
UMENCHO Diamond Member Joined: 3/21/2006 Last visit: 9/10/2024 Posts: 10228 Rating: (1181)	Hello, Please, could you translate in English language. Or perhaps someone elase could do this. International version of forum with official English language. Best regards, Hristo Mihalev

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6/9/2010 4:41 PM	Rate (0)
Gebhardt Karl Platinum Member Joined: 7/16/2006 Last visit: 1/2/2024 Posts: 1502 Rating: (176)	Hi Vær oppmerksom på at engelsk er et forum her. Har de spør henne hvorfor, selv i dette språket. Har de har denne forståelsen, siden de ikke solen kan bli hjulpet. Hej Bemærk venligst, at engelsk er et forum her. Har de spørger hende hvorfor, selv i dette sprog. Har de denne forståelse, da de ikke solen kan blive hjulpet. Gruss
	Karl
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6/9/2010 4:48 PM	Rate (0)
Gebhardt Karl Platinum Member Joined: 7/16/2006 Last visit: 1/2/2024 Posts: 1502 Rating: (176)	Hi >The messuringvalue is aprox. 10C* higher than it should be, >when i connect an simulator on the card it seems to be OK, >there must be som kind of missmatch. the powerunit is grounded on the M-. >Any idé??? Perhaps a scaling problem. At first. Tell mit the temperatureon senor, what mA you have. As example: Sensor 20°C --> 3 mA Sensor 100°C --> 20 mA As example Tell us the value for20°C, 100°C Messuring with an external gauche. ( Digital current measurement)
	Karl
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This contribution was helpful to 2 thankful Users UMENCHO Lucky123

6/10/2010 7:34 AM	Rate (0)
NickeNyfiken Posts: 65 Rating: (1)	Hi When simulate direct on the card (Pin 12 och 15) 4mA=0C* 20mA=100C* So no scaling problem.
NickeNyfiken Posts: 65 Rating: (1)
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6/10/2010 4:57 PM	Rate (0)
Gebhardt Karl Platinum Member Joined: 7/16/2006 Last visit: 1/2/2024 Posts: 1502 Rating: (176)	Hi >When simulate direct on the card (Pin 12 och 15) >4mA=0C* >20mA=100C* >So no scaling problem. O.K. conecting the PT100 --> conerter --> Pin 12, 15) Integrate only for test the "Digital current measurement". Put the Sensor in ICE-Water (0°C) --> How mA do you have (You must have 4 mA) Put the Sensor in hot Water (100°C) --> How mA do you have (You must have 20mA) As example If you have 0°C --> 0mA If you have 100°C --> 20mA You have a scaling problem. Test if you can change from 0-20mA to 4-20mA. (PT100 converter) Have you a Datasheet from your converter ? Type ? I think, this can solve you problem.
	Karl
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6/11/2010 9:40 AM	Rate (0)
NickeNyfiken Posts: 65 Rating: (1)	Hi It's an INOR PT100 calibrited 0-100C*-->4-20mA
NickeNyfiken Posts: 65 Rating: (1)
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6/11/2010 7:00 PM	Rate (0)
Gebhardt Karl Platinum Member Joined: 7/16/2006 Last visit: 1/2/2024 Posts: 1502 Rating: (176)	Hi Do you have make the test from my information (6/10/2010, 4:57 PM ) With this information can you test the converter.
	Karl
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6/11/2010 7:04 PM	Rate (0)
Gebhardt Karl Platinum Member Joined: 7/16/2006 Last visit: 1/2/2024 Posts: 1502 Rating: (176)	Hi Do you have the type from the converter ? It give more than 1 pice. http://www.inor.com/
	Karl
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