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AM2 destroyed-what did I do wrong?

Created by: magnus at: 10/4/2006 7:39 AM (4 Replies)

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10/4/2006 7:39 AM	Rate (0)
magnus Posts: 8 Rating: (0)	I wanted to use the 4-20mA option on the AM2 module for a pressure transmitter. To test it, I connected the input I on the AM2 to the 24V powersupply, via a resistor giving 8 mA of current. It worked for a few seconds- then no current is flowing. I switched over to the other input- the same thing happening again and the module seems destroyed. Siemens has no electric wiring diagram over the modules, so I don't know what I did wrong. Should M be connected to - (mass)? Anybody have some information? Thanks in advance/Magnus
magnus Posts: 8 Rating: (0)
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10/5/2006 9:45 AM	Rate (0)
Fux Posts: 661 Rating: (123)	Hi magnus, perhaps the following wiring diagram from Siemens will answer your question. http://support.automation.siemens.com/WW/view/en/23425009 I think this diagram is also added to your AM2-module if it was new. Regards Fux
Fux Posts: 661 Rating: (123)	Last edited by: Fux at: 10/5/2006 9:46 AM
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10/5/2006 1:38 PM	Rate (0)
magnus Posts: 8 Rating: (0)	Thanks indeed- would help me a lot, of course. Just, what is the role of the resistor between the power supply and the + on the AM2? Anybody knows? BR Magnus
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10/5/2006 1:46 PM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 11/19/2024 Posts: 8770 Rating: (1171)	Hello magnus, In my opinion it isn't a Resistor But a fuse Best regards, Wizard

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10/5/2006 2:28 PM	Rate (0)
magnus Posts: 8 Rating: (0)	ah, could be. I'll try now to connect a new AM2, which I got this morning [:P]and hopefully it will not break. Thanks everybody/Magnus
magnus Posts: 8 Rating: (0)
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