Sign In Help
Schneider Electric
HelpLogin / Register

Invite a Co-worker

Send a co-worker an invite to the Exchange portal.Just enter their email address and we’ll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send Invite Cancel

Invitation Sent

Your invitation was sent.Thanks for sharing Exchange with your co-worker.
Send New Invite Close
  • Home
  • Communities
  • :
  • EcoStruxure Power & Grid
  • :
  • Metering & Power Quality
  • :
  • 7550RTU Pulse input, minimum voltage for correct operation ?
Community Menu
  • Forums
    • By Topic
        • EcoStruxure Building
          • Field Devices Forum
        • EcoStruxure Power & Grid
          • Metering & Power Quality
        • EcoStruxure IT
          • EcoStruxure IT forum
        • Industrial Automation
          • Industry Automation and Control Forum
          • Alliance System Integrators Forum
          • Machine Automation Forum
          • EcoStruxure Automation Expert / IEC 61499 Forum
          • Industrial Edge Computing Forum
          • Level and Pressure Instrumentation Forum
          • Modicon User Group
          • PLC Club Indonesia
          • SEE Automation Club Forum
          • Fabrika ve Makina Otomasyonu Çözümleri
          • Форум по промышленной автоматизации СНГ
          • Motorabgangstechnik & Antriebstechnik Forum
        • SCADA & Telemetry Solutions
          • Geo SCADA Expert Forum
          • SCADA and Telemetry Devices Forum
        • Power Distribution IEC
          • Power Distribution and Digital
          • Power Standards & Regulations
          • Solutions for Motor Management
          • Paneelbouw & Energie Distributie
          • Eldistribution & Fastighetsautomation
          • Elektrik Tasarım Dağıtım ve Uygulama Çözümleri
        • Power Distribution NEMA
          • US Utility Forum
        • Power Distribution Softwares
          • EcoStruxure Power Design Forum
          • LayoutFAST User Group Forum
        • Wireless Information Network Solutions
          • Instrument Area Network
          • Remote Monitoring
          • Tank Level Monitoring
          • Remote Data Collection
        • Solutions for your Business
          • Solutions for Food & Beverage Forum
          • Solutions for Healthcare Forum
    • By Segment
        • Food & Beverage
          • Solutions for Food & Beverage Forum
        • Healthcare
          • Solutions for Healthcare Forum
      • EcoStruxure Building
        • Field Devices Forum
      • EcoStruxure Power & Grid
        • Metering & Power Quality
      • EcoStruxure IT
        • EcoStruxure IT forum
      • Industrial Automation
        • Industry Automation and Control Forum
        • Alliance System Integrators Forum
        • Machine Automation Forum
        • EcoStruxure Automation Expert / IEC 61499 Forum
        • Industrial Edge Computing Forum
        • Level and Pressure Instrumentation Forum
        • Modicon User Group
        • PLC Club Indonesia
        • SEE Automation Club Forum
        • Fabrika ve Makina Otomasyonu Çözümleri
        • Форум по промышленной автоматизации СНГ
        • Motorabgangstechnik & Antriebstechnik Forum
      • SCADA & Telemetry Solutions
        • Geo SCADA Expert Forum
        • SCADA and Telemetry Devices Forum
      • Power Distribution IEC
        • Power Distribution and Digital
        • Power Standards & Regulations
        • Solutions for Motor Management
        • Paneelbouw & Energie Distributie
        • Eldistribution & Fastighetsautomation
        • Elektrik Tasarım Dağıtım ve Uygulama Çözümleri
      • Power Distribution NEMA
        • US Utility Forum
      • Power Distribution Softwares
        • EcoStruxure Power Design Forum
        • LayoutFAST User Group Forum
      • Wireless Information Network Solutions
        • Instrument Area Network
        • Remote Monitoring
        • Tank Level Monitoring
        • Remote Data Collection
      • Solutions for your Business
        • Solutions for Food & Beverage Forum
        • Solutions for Healthcare Forum
      • Food & Beverage
        • Solutions for Food & Beverage Forum
      • Healthcare
        • Solutions for Healthcare Forum
  • Blogs
    • By Topic
        • EcoStruxure Power & Grid
          • Backstage Access Resources
        • Industrial Automation
          • Industry 4.0 Blog
          • Industrie du Futur France
        • SCADA & Telemetry Solutions
          • SCADA and Telemetry Blog
        • Power Distribution IEC
          • Power Events & Webinars
          • Power Foundations Blog
          • UK&I Residential and Commercial Electrical Distribution
        • Power Distribution NEMA
          • NEMA Power Foundations Blog
        • Power Distribution Softwares
          • EcoStruxure Power Design Blog
        • Solutions for your Business
          • Solutions for Food & Beverage Blog
          • Solutions for Healthcare Blog
          • Solutions for Retail Blog
          • Solutions for eMobility
          • Digital Hospital Solutions – UK&I
        • Knowledge Center
          • Industrial Automation How-to videos
          • Digital E-books
          • Success Stories Corner
        • Community experts & publishers
          • Publishers Community
    • By Segment
        • Food & Beverage
          • Solutions for Food & Beverage Blog
        • Healthcare
          • Solutions for Healthcare Blog
        • Retail
          • Solutions for Retail Blog
        • Retail
          • Solutions for eMobility
        • Retail
          • Digital Hospital Solutions – UK&I
      • EcoStruxure Power & Grid
        • Backstage Access Resources
      • Industrial Automation
        • Industry 4.0 Blog
        • Industrie du Futur France
      • SCADA & Telemetry Solutions
        • SCADA and Telemetry Blog
      • Power Distribution IEC
        • Power Events & Webinars
        • Power Foundations Blog
        • UK&I Residential and Commercial Electrical Distribution
      • Power Distribution NEMA
        • NEMA Power Foundations Blog
      • Power Distribution Softwares
        • EcoStruxure Power Design Blog
      • Solutions for your Business
        • Solutions for Food & Beverage Blog
        • Solutions for Healthcare Blog
        • Solutions for Retail Blog
        • Solutions for eMobility
        • Digital Hospital Solutions – UK&I
      • Knowledge Center
        • Industrial Automation How-to videos
        • Digital E-books
        • Success Stories Corner
      • Community experts & publishers
        • Publishers Community
      • Food & Beverage
        • Solutions for Food & Beverage Blog
      • Healthcare
        • Solutions for Healthcare Blog
      • Retail
        • Solutions for Retail Blog
      • Retail
        • Solutions for eMobility
      • Retail
        • Digital Hospital Solutions – UK&I
  • Ideas
        • Industrial Automation
          • Modicon Ideas & new features
        • SCADA & Telemetry Solutions
          • Geo SCADA Expert Ideas
          • SCADA and Telemetry Devices Ideas
  • Knowledge Center
    • Building Automation Knowledge Base
    • Industrial Automation Knowledge Base
    • Industrial Automation How-to videos
    • SCADA & Telemetry Solutions Knowledge Base
    • Digital E-books
    • Success Stories Corner
    • Power Talks
  • Events & Webinars
    • Innovation Talks
    • Innovation Summit
    • Let's Exchange Series
    • Technology Partners
  • Support
    • Ask Exchange
    • Leaderboard
    • Our Community Guidelines
    • Community User Guide
    • How-To & Best Practices
    • More
Register Now
How can we help?
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 
53099members
248513posts

7550RTU Pulse input, minimum voltage for correct operation ?

Options
  • Subscribe to RSS Feed
  • Mark Topic as New
  • Mark Topic as Read
  • Float this Topic for Current User
  • Bookmark
  • Subscribe
  • Mute
  • Printer Friendly Page
Back to Metering & Power Quality
Rich_Lannaghan
Lt. Commander | EcoXpert Master Rich_Lannaghan Lt. Commander | EcoXpert Master
Lt. Commander | EcoXpert Master
‎2016-10-19 01:48 AM
1 Like
4
60
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2016-10-19 01:48 AM

7550RTU Pulse input, minimum voltage for correct operation ?

Hi,

Posted this across on hardware but seems more going on over here !

Does anybody know what the minimum voltage that the 7550RTU can take on a digital input from a pulse meter ?

2016-10-19_09-47-48.jpg

The manual states external supply of maximum 130VDC but what is the minimum for the input to operate correctly ?

Cheers

Share
  • All forum topics
  • Previous Topic
  • Next Topic
4 Replies 4
Tom_Stevenson
Picard Tom_Stevenson Picard
Picard
‎2016-10-19 08:37 AM
0 Likes
1
18
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2016-10-19 08:37 AM

Re: 7550RTU Pulse input, minimum voltage for correct operation ?

The hardware forum is the right place for this question Richard.  Someone in the community may know, but I am going to bump your original post to the top.

Tom

Share
Rich_Lannaghan
Lt. Commander | EcoXpert Master Rich_Lannaghan Lt. Commander | EcoXpert Master
Lt. Commander | EcoXpert Master
‎2016-10-20 02:35 AM
0 Likes
0
18
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2016-10-20 02:35 AM

Re: 7550RTU Pulse input, minimum voltage for correct operation ?

Tom, thanks, no answer as yet, i would got to UK tech support but think they will just go with the manual spec.

Share
sesa181247_brid
sesa181247_brid Schneider Alumni (Retired)
Schneider Alumni (Retired)
‎2016-10-20 08:55 AM
0 Likes
1
18
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2016-10-20 08:55 AM

Re: 7550RTU Pulse input, minimum voltage for correct operation ?

The minimum external voltage would be zero, and it would be configured as in the diagram on the left for internal excitation.

Share
Rich_Lannaghan
Lt. Commander | EcoXpert Master Rich_Lannaghan Lt. Commander | EcoXpert Master
Lt. Commander | EcoXpert Master
‎2016-10-20 09:05 AM
0 Likes
0
18
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content
‎2016-10-20 09:05 AM

Re: 7550RTU Pulse input, minimum voltage for correct operation ?

Mark, sorry, not sure i follow, the voltage out of SCOM would be 30VDC in that diagram ?

I need to interface to a gas meter to read pulses, the maximum that can be on that is 20VDC, hence my question what is the minimum voltage of external excitation could the input receive to count a pulse ?

Can you suggest the correct connection of the DI on the 7550 for operation like is detailed below in the gas meter manual ?

chatterbox.jpg

Share
Top Experts
User Count
Charles_Murison
Picard Charles_Murison Picard
143
Robert_Lee
Captain Robert_Lee Captain
56
Ramasamy_N
Commander Ramasamy_N Commander
40
DanL
Lt. Commander DanL Lt. Commander
31
Nedjma
Nedjma Community Alumni (Retired)
24
Daniel_Brandao
Lt. Commander Daniel_Brandao Lt. Commander
17
See More Top Experts
Find a Service Provider
Find a certified partner to help you address your integration, installation, maintenance and project needs.
View all Providers
Support

Have a question? Please contact us with details, and we will respond.

Contact Us
FAQ

Look through existing questions to find popular answers.

Learn More
About

Want to know more about Exchange and its possibilities?

Learn More

Full access is just steps away!

Join Exchange for FREE and get unlimited access to our global community of experts.

Connect with Peers & Experts

Discuss challenges in energy and automation with 30,000+ experts and peers.

Get Support in Our Knowledge Base

Find answers in 10,000+ support articles to help solve your product and business challenges.

Ask Questions. Give Solutions

Find peer based solutions to your questions. Provide answers for fellow community members!

Register today for FREE

Register Now

Already have an account?Log in

About Us FAQ Terms & Conditions Privacy Notice Change your cookie settings
©2021, Schneider Electric