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SM 1222: I can see the leds of the outputs when are activated

Created by: JohanChala at: 10/3/2011 7:02 PM (6 Replies)

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10/3/2011 7:02 PM	Rate (0)
JohanChala Posts: 59 Rating: (0)	Hello ocuaxanh, I have a problem,maybe you can help me... I can see the leds of the outputs when are activated, but i can´t hear the switching and i don´t know wich is the problem because the module is conected very well i think. Thanks so much :D
JohanChala Posts: 59 Rating: (0)	Last edited by: CS Moderator at: 10/4/2011 2:50 PM new subject after splitting
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10/3/2011 8:52 PM	Rate (0)
Marcjan Platinum Member Joined: 4/22/2010 Last visit: 1/15/2025 Posts: 5697 Rating: (715)	Hello, Please give us the 6S7 number of the module you use. Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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10/3/2011 9:32 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 1/21/2025 Posts: 15549 Rating: (2467)	JohanChala Hello ocuaxanh, I have a problem,maybe you can help me... I can see the leds of the outputs when are activated, but i can´t hear the switching and i don´t know wich is the problem because the module is conected very well i think. Thanks so much :D Is it a relay output module? If not, you will not hear anything. Is it on your desk or in a quiet area? If the connectors A/B are swapped, the relay may not activate. This happened to my most recent project builds with all the PLC I/O connectors were wired backwards. It was very quiet and nothing worked properly.
	science guy
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10/3/2011 10:18 PM	Rate (0)
JohanChala Posts: 59 Rating: (0)	hello huggy_d1, I have a digital module with relay outputs, but I can´t hear the switching when a output is activated i don´t know why, please help me, i don´t know what is the problem. Could you give me a drawings of your connections about the outputs digital module? please, thanks you.
JohanChala Posts: 59 Rating: (0)
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10/3/2011 11:14 PM	Rate (0)
JohanChala Posts: 59 Rating: (0)	the module is SM 1222 16 DO / RLY
JohanChala Posts: 59 Rating: (0)
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10/4/2011 7:55 AM	Rate (0)
Marcjan Platinum Member Joined: 4/22/2010 Last visit: 1/15/2025 Posts: 5697 Rating: (715)	Hello, You canfind the connection diagram here: http://support.automation.siemens.com/WW/view/en/39710145 Page 236. Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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10/18/2011 11:08 AM	Rate (0)
Raghupathy Posts: 37 Rating: (2)	Hi You check the 0VDC is properly connected. Even after the output LED is not lighting up means this could be a component problem....
Raghupathy Posts: 37 Rating: (2)
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