Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Notifications
Login / Register
Community
Community
Notifications
close
  • Forums
  • Knowledge Center
  • Events & Webinars
  • Ideas
  • Blogs
Help
Help
  • Explore Community
  • Get Started
  • Ask the Community
  • How-To & Best Practices
  • Contact Support
Login / Register
Sustainability
Sustainability

We Value Your Feedback!
Could you please spare a few minutes to share your thoughts on Cloud Connected vs On-Premise Services. Your feedback can help us shape the future of services.
Learn more about the survey or Click here to Launch the survey
Schneider Electric Services Innovation Team!

PM8240 Issue of Digital Input Signal

Metering & Power Quality

Schneider Electric support forum about Power Meters (ION, PowerTag, PowerLogic) and Power Quality from design, implementation to troubleshooting and more.

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: 
  • Home
  • Schneider Electric Community
  • EcoStruxure Power & Grid
  • Metering & Power Quality
  • PM8240 Issue of Digital Input Signal
Options
  • Mark Topic as New
  • Mark Topic as Read
  • Float this Topic for Current User
  • Bookmark
  • Subscribe
  • Mute
  • Printer Friendly Page
Invite a Co-worker
Send a co-worker an invite to the 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
Top Experts
User Count
Charles_Murison
Picard Charles_Murison Picard
477
Ramasamy_N
Captain Ramasamy_N Captain
113
Robert_Lee
Admiral Robert_Lee Admiral
92
Mehran_Mehrnia
Captain Mehran_Mehrnia Captain
85
View All

Invite a Colleague

Found this content useful? Share it with a Colleague!

Invite a Colleague Invite
Solved Go to Solution
Back to Metering & Power Quality
Solved
mimi1002
Ensign mimi1002
Ensign

Posted: ‎2023-03-29 12:14 AM

0 Likes
5
1600
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2023-03-29 12:14 AM

PM8240 Issue of Digital Input Signal

Hi everyone,

 

I would like to ask for your help due to a problem that occurred during the digital input signal test of PM8240.

 

 -CB Status, OCR, and OCGR signals were sequentially connected to the onboard digital input terminals S1, S2, and S3 of the PM8240 and an external power supply was used for DC24V power.

 

 -During the S1 terminal test, the counter of the S2 and S3 terminals rises, and the S1 terminals also rise by two or more.

 

 -Therefore, the debounce setting of the digital input module was changed to 1 second, and the test was completed normally.

 

 -Since then, the counter of the s1 terminal has risen even though 3 out of 15 products have not been tested. S2, S3 terminals clear.

 

Q1) Is there anything that causes the above symptoms, or is there anything you suspect, or what you want to check?

 

One test was that the counter did not rise when the DC16V power of the digital input option module was connected.

 

It is presumed to be caused by electrical noise during the signal test process, but it is not clear. If anyone knows the content well, I would appreciate it if you could let me know.

 

Thansk a lot.

 

Best Regards.

Labels
  • Labels:
  • ION9000
  • PM8000
Tags (1)
  • Tags:
  • english
Reply
  • All forum topics
  • Previous Topic
  • Next Topic

Accepted Solutions
DanL
Captain DanL Captain
Captain

Posted: ‎2023-03-31 11:17 AM

0 Likes
0
1565
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2023-03-31 11:17 AM

This looks great to me assuming:
1) the "24v" supply is a DC voltage source capable of supplying >= 10mA DC (and source impedance is << 1000 ohms)

2) the 24v DC supply does not have significant common-mode (voltage with respect to ground) AC voltage. If the supply is ground-referenced or properly isolated this is not an issue. 

3) the 3 signals "CB Status, OCR, and OCGR" are simple low impedance and dry contact switches as shown.

See Answer In Context

Reply
Replies 5
Charles_Murison
Picard Charles_Murison Picard
Picard

Posted: ‎2023-03-29 09:55 AM

2 Likes
3
1587
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2023-03-29 09:55 AM

Hello @mimi1002 ,

 

May be helpful if you could provide a wiring diagram to show how the system was connected.

Regards,

Charles

L4 Prime for Advanced metering and Utilities
Reply
mimi1002
Ensign mimi1002
Ensign

Posted: ‎2023-03-30 05:22 PM

0 Likes
2
1575
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2023-03-30 05:22 PM

Hello @Charles_Murison 

 

KakaoTalk_20230320_154536052.jpg

This is wiring diagram.

As I said, the DC24v power source used an external power supply.

Reply
Charles_Murison
Picard Charles_Murison Picard
Picard

Posted: ‎2023-03-31 08:36 AM

0 Likes
0
1568
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2023-03-31 08:36 AM

Hello @mimi1002 ,

 

Wiring looks good, as to why you are seeing that behavior is strange. To troubleshoot this likely would need to measure the inputs to the meter to see if signals match what meter is reporting.

 

Regards,

Charles

L4 Prime for Advanced metering and Utilities
Reply
DanL
Captain DanL Captain
Captain

Posted: ‎2023-03-31 11:17 AM

0 Likes
0
1566
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2023-03-31 11:17 AM

This looks great to me assuming:
1) the "24v" supply is a DC voltage source capable of supplying >= 10mA DC (and source impedance is << 1000 ohms)

2) the 24v DC supply does not have significant common-mode (voltage with respect to ground) AC voltage. If the supply is ground-referenced or properly isolated this is not an issue. 

3) the 3 signals "CB Status, OCR, and OCGR" are simple low impedance and dry contact switches as shown.

Reply
Charles_Murison
Picard Charles_Murison Picard
Picard

Posted: ‎2023-06-05 08:43 AM

0 Likes
0
1403
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

Link copied. Please paste this link to share this article on your social media post.

‎2023-06-05 08:43 AM

Hello @mimi1002 ,

 

Did you still need help with this topic?

 

Regards,

Charles

L4 Prime for Advanced metering and Utilities
Reply
Preview Exit Preview

never-displayed

You must be signed in to add attachments

never-displayed

 
To The Top!

Forums

  • APC UPS Data Center Backup Solutions
  • EcoStruxure IT
  • EcoStruxure Geo SCADA Expert
  • Metering & Power Quality
  • Schneider Electric Wiser

Knowledge Center

Events & webinars

Ideas

Blogs

Get Started

  • Ask the Community
  • Community Guidelines
  • Community User Guide
  • How-To & Best Practice
  • Experts Leaderboard
  • Contact Support
Brand-Logo
Subscribing is a smart move!
You can subscribe to this board after you log in or create your free account.
Forum-Icon

Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.

Register today for FREE

Register Now

Already have an account? Login

Terms & Conditions Privacy Notice Change your Cookie Settings © 2025 Schneider Electric

This is a heading

With achievable small steps, users progress and continually feel satisfaction in task accomplishment.

Usetiful Onboarding Checklist remembers the progress of every user, allowing them to take bite-sized journeys and continue where they left.

of