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AM2 no light

Created by: Spoiler-3 at: 5/27/2021 8:34 AM (24 Replies)

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5/27/2021 8:34 AM	Rate (0)
Spoiler-3 Regular Member Joined: 4/28/2021 Last visit: 6/27/2022 Posts: 32 Rating: (0)	Hello I have an AM2 analog block to my Siemens LOGO! red wire to L+, black wire to M, it has 24V. I use it for reading an analog laser sensor. But the green light (RUN/STOP) doesn't go on anymore. Is there a way to reset my analog block? or is it broken?

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5/27/2021 8:38 AM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 12/7/2024 Posts: 34363 Rating: (4281)	Lit the RUN/STOP LED with a other color (red, orange, yellow)?

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5/27/2021 8:41 AM	Rate (0)
Spoiler-3 Regular Member Joined: 4/28/2021 Last visit: 6/27/2022 Posts: 32 Rating: (0)	No, it doenst give any light.

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5/27/2021 8:46 AM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 12/7/2024 Posts: 34363 Rating: (4281)	Are you shure that the power supply is correct connected? Have you measure the voltage? If the RUN/STOP LED not lit with in any color, then is a problem with the power supply or the module is defective. A reset is not possible. You try it with switch off the power supply.

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5/27/2021 8:48 AM	Rate (0)
Spoiler-3 Regular Member Joined: 4/28/2021 Last visit: 6/27/2022 Posts: 32 Rating: (0)	Already tried that, i measured 24V on L+ and M.

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5/27/2021 8:51 AM	Rate (0)
Mr.V Silver Member Joined: 6/19/2019 Last visit: 12/6/2024 Posts: 705 Rating: (77)	It seems it's broken can you show drawing how you connected your laser sensor and power supply to this module

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5/27/2021 8:51 AM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 12/7/2024 Posts: 34363 Rating: (4281)	If the power supply correct connected and you can measure the voltage at the terminal screws of the module and the LED not lit in any color, then I think, the module is defective.

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5/27/2021 8:57 AM	Rate (0)
Spoiler-3 Regular Member Joined: 4/28/2021 Last visit: 6/27/2022 Posts: 32 Rating: (0)	Okay, I will buy another one. I think I know how it happends. I put 24V on L+ and M, and the slider was also in, so maybe he got 48V on it. the sensor was connected with the white wire to AI1
	Last edited by: Spoiler-3 at: 05/27/2021 08:59:00
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5/27/2021 9:04 AM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 12/7/2024 Posts: 34363 Rating: (4281)	Mr.V It seems it's broken can you show drawing how you connected your laser sensor and power supply to this module At first it doesn't matter how the sensor is wired, the RUN / STOP LED must light up in any color if the power supply is OK. I also know from previous contributions from the user that the sensor has already worked.

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5/27/2021 9:04 AM	Rate (0)
Mr.V Silver Member Joined: 6/19/2019 Last visit: 12/6/2024 Posts: 705 Rating: (77)	Yes it can be. See also in PDF or you connected earth and cable shielding? Spoiler-3 Okay, I will buy another one. I think I know how it happends. I put 24V on L+ and M, and the slider was also in, so maybe he got 48V on it. the sensor was connected with the white wire to AI1 If your slider was also in so you will also must burn and LOGO also? I think if from one power supply you give + and M to your LOGO and extansion modules then you must burn all system which is 24VDC Attachment SIMATIC LOGO! Manual - Logo_e.pdf (397 Downloads)
	Last edited by: Mr.V at: 05/27/2021 09:09:29
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