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Created by: Henny at: 10/24/2012 6:53 AM (4 Replies)

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10/24/2012 6:53 AM	Rate (0)
Henny Posts: 3 Rating: (0)	Dear All, I just installed a LOGO! 6ED1 052-1MD00-0BA6 and connect true the analog inputs a humidifier with temperature sensor both are 0 -10vdc but the value or temperature/humidity are not stable the fluctuation is 5 degrees (on the TD screen) I use a shielded cable and when I measure on the input with a fluke meter then it’s very stable. Please give advice what could be wrong? Best regards,
Henny Posts: 3 Rating: (0)
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10/24/2012 7:49 AM	Rate (0)
Marcjan Platinum Member Joined: 4/22/2010 Last visit: 11/18/2024 Posts: 5697 Rating: (715)	Hello, Are the sensors connected to a separate power supply or the same one the Logo uses? In first case try to disconnect ground (shield) at Logo side. 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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10/24/2012 8:30 AM	Rate (0)
Henny Posts: 3 Rating: (0)	Hello Marcjan, yes it's connected to the 24vdc logo power supply also ground 0v as all the modules Regards, Henny.
Henny Posts: 3 Rating: (0)
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10/24/2012 8:59 AM	Rate (0)
Henny Posts: 3 Rating: (0)	Hello Marcjan, I disconnect the shield from the LOGO (between LOGO and temp. & humidity device) but it's gives the same result because the temp.& humidity device still uses 0 and 24v from the same power suppy and the shielding is not use now it was only connect one side the logo side. regards, Henny.
Henny Posts: 3 Rating: (0)
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10/26/2012 12:29 PM	Rate (0)
realpower_ir Posts: 29 Rating: (0)	Hello Henny, Would you please show us how you connect and supply your sensor(s)? I've never heard about fluctuation on LOGO! if wiring be all right. Good Luck
realpower_ir Posts: 29 Rating: (0)
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