8/19/2020 10:17 AM | |
Joined: 1/24/2012 Last visit: 1/9/2024 Posts: 16 Rating:
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Hi, Daniel Chartier, what is the recommendation to connect HMI boady Eath point, whether its protective Earth "PE" or Functional earht(clean earth)"IE" to have safe operation. Also, we are using siemens ScalanceXC206 inbetween 1500R PLC and HMI panel for communication, in the scalance its connected to Functional Earth(clean earth)"IE" as per the recommendation given in the scalance manual. our, doubt is whether HMI has to be connected in "PE" or "IE"?? Thanks, Vijay.K
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Last edited by: Jen_Moderator at: 08/19/2020 12:27:37New subject after splitting |
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8/20/2020 9:51 PM | |
Joined: 9/27/2006 Last visit: 8/6/2024 Posts: 12273 Rating:
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Hello VIJAYK; Please study the HMI connection diagram, provided by Siemens HMI Comfort panels manual https://support.industry.siemens.com/cs/it/en/view/49313233/115399633931 As you can se, all equipotential bonding for the HMI body, the shielding of the communication cables and the grounding connections for the HMI are brought back to the main grounding bar of the cabinet. So, only "PE" (power ground) connections are used, no clean instrument earth is used for the HMI. Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 08/20/2020 22:19:34 |
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8/22/2020 5:22 PM | |
Joined: 1/24/2012 Last visit: 1/9/2024 Posts: 16 Rating:
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Thanks for your reply. |
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