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Can be 230 VAC main module and analog expansion modules together?

Created by: Andrus_Saar at: 3/18/2024 6:13 PM (4 Replies)

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3/18/2024 6:13 PM	Rate (0)
Andrus_Saar Joined: 10/15/2022 Last visit: 10/20/2024 Posts: 67 Rating: (2)	Hello If the LOGO! main module is 230 VAC powered and there is also a 230 V expansion module (relay), can 24 V expansion modules (AM2 , AM2 RTD, AM2 AQ) also be connected to this set ? Last place of course. Is LOGO! analog expansion module AM2 inputs can tolerate 24 VDC voltage, even if it is defined as 0-10 V input within the program. That is, the behaviour is the same as for the universal inputs of the 12/24VDC main module. Andrus Translated with DeepL.com (free version)
	Last edited by: Jen_Moderator at: 03/19/2024 11:22:31 Text formatting optimized.
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3/18/2024 6:22 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 11/6/2024 Posts: 34151 Rating: (4254)	Siemens doesn't write anything about this in the manual. But I assume that the behavior is the same as with base modules with 0-10V inputs. But if you want a binding answer, then ask Siemens directly via a Support Request.

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3/18/2024 6:28 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 11/6/2024 Posts: 34151 Rating: (4254)	If you insert an analog expansion module behind the last 230VAC module, then you can also insert 12/24 VDC digital expansion modules further to the right. But no further 230 VAC modules either. Background: The analog expansion modules have electrical isolation on the bus on the input side.

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3/18/2024 6:42 PM	Rate (0)
Ella_68 Gold Member Joined: 6/11/2019 Last visit: 11/6/2024 Posts: 2307 Rating: (102)	I wouldn't experiment with it and would stick to the instructions in the device manual. Greetings Ella_68 (translated with Google)

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3/18/2024 7:39 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 11/6/2024 Posts: 34151 Rating: (4254)	Ella_68 I wouldn't experiment with it and would stick to the instructions in the device manual. Greetings Ella_68 (translated with Google) Where does he write that he wants to experiment? How do you come to this conclusion?

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