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ET 200S output module

Created by: Foty at: 12/15/2005 10:10 PM (3 Replies)

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12/15/2005 10:10 PM	Rate (0)
Foty Posts: 5 Rating: (0)	Hello, Could I use a Digital output to drive an inductive load? Presently I'm using relay output cards and I would like to know if I could use digital output cards to drive a hydraulic valve in 24 vdc that the cusumption is 1.25 A. Without adding anything. Thank you
Foty Posts: 5 Rating: (0)	Last edited by: Foty at: 12/15/2005 10:20 PM
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12/19/2005 11:08 AM	Rate (0)
Denilson Pegaia Platinum Member Joined: 9/23/2005 Last visit: 6/7/2023 Posts: 4184 Rating: (1342)	Hello In principle it’s possible to use an output module of ET200S to drive inductive loads. In IK PI Catalog (www.siemens.com/simatic/printmaterial chapter6), you can see the switching frequency for resistive and inductive loads.
	Denilson Pegaia Siemens Industry Sector Technical Support
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12/21/2005 7:42 PM	Rate (0)
Foty Posts: 5 Rating: (0)	To add to my question, I would like know if I should protect my output relay cards with diods, and do the same for the digital output card. I have been told that I would need to put some, but nowhere is it indicated in the pdf. Thank you
Foty Posts: 5 Rating: (0)
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1/11/2006 10:45 AM	Rate (0)
McMurphy Regular Member Joined: 9/16/2005 Last visit: 2/6/2006 Posts: 39 Rating: (4)	Hi Foty, it will be recommendable to protect your output relay cards with diods, but for your digital output card it is not necessary, because of the internal protection. Even if your special application or equipment requires a highest safety, you can also protect your digital output card. Kind regards

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