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

Join our "Ask Me About" community webinar on May 20th at 9 AM CET and 5 PM CET to explore cybersecurity and monitoring for Data Center and edge IT. Learn about market trends, cutting-edge technologies, and best practices from industry experts.
Register and secure your Critical IT infrastructure

Symmetra PX40 will not power on!!

APC UPS Data Center & Enterprise Solutions Forum

Schneider, APC support forum to share knowledge about installation and configuration for Data Center and Business Power UPSs, Accessories, Software, Services.

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
  • APC UPS, Critical Power, Cooling and Racks
  • APC UPS Data Center & Enterprise Solutions Forum
  • Symmetra PX40 will not power on!!
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
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
BillP
Administrator BillP Administrator
5060
voidstar_apc
Janeway voidstar_apc
196
Erasmus_apc
Sisko Erasmus_apc
112
TheNotoriousKMP_apc
Sisko TheNotoriousKMP_apc
108
View All

Invite a Colleague

Found this content useful? Share it with a Colleague!

Invite a Colleague Invite
Solved Go to Solution
Back to APC UPS Data Center & Enterprise Solutions Forum
Solved
BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-06-26 02:45 AM . Last Modified: ‎2024-03-19 01:53 AM

0 Likes
2
1263
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

Posted: ‎2021-06-26 02:45 AM . Last Modified: ‎2024-03-19 01:53 AM

Symmetra PX40 will not power on!!

I recently installed a second hand Symmetra PX40.  Of note, I am NOT using ANY APC switch gear at all...there is no PDU connected to the Symmetra; the 208V3P is connected directly from our 175A breaker in a mains panel.  That all said, when I try to power on the Symmetra with the small while rocker switch (pushing to the up position); it immediately "trips" and goes to the OFF position (does not stay up and boot).  I tried trouble shooting EVERYTHING I could and low and behold when the External Switch Gear Monitor card is pulled out...VOILA...it stays powered on and boots.  Of course there is a fault in the system saying the external switch gear monitor card is removed.  If I plug the card back in while the unit is powered up...it immediately trips back to off.  I investigated a little bit in the rear of the unit too...and on the maintenance bypass board; there are two sets of jumpers...one pair jumping 5/6 and the other pair jumping 13/14.  I tried removing 13/14 jumper and no joy same thing...I tried removing 5/6 and same thing...BOTTOM LINE, I cannot power on the UPS with the External Switch Gear Monitor card in.  Now this is a problem really because then the UPS is in a permanent fault state (and as far as I can tell cannot be cleared).  Can anyone help me understand whay the heck is going on here.  with the card removed EVERYTHING works fine and when it is plugged in it will not even try to start it just immediately trips off...what am I missing...I am pulling my hair out here!!!!  Any help at all would be appreciated!!!!

Thanks,

GSM

Labels
  • Labels:
  • Data Center & Facility 3 Phase UPS
  • Tags:
  • failure
  • gear
  • px
  • switch
  • symmetra
  • trip
Reply

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

  • All forum topics
  • Previous Topic
  • Next Topic

Accepted Solutions
BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-06-26 02:45 AM . Last Modified: ‎2024-03-19 01:53 AM

0 Likes
0
1263
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

Posted: ‎2021-06-26 02:45 AM . Last Modified: ‎2024-03-19 01:53 AM

Bill, I cannot thank you enough; you saved me $$$$.  That is perfect.  I now have the APC EPW9 wired to 1/2 of J5 and 5/6 jumpered on J4...with switch gear card in...now ZERO FAULTS and no more beeping!!!!  Thank you so much Bill...I owe you!

GSM

See Answer In Context

Reply

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

Replies 2
BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-06-26 02:45 AM . Last Modified: ‎2024-03-19 01:53 AM

0 Likes
0
1263
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

Posted: ‎2021-06-26 02:45 AM . Last Modified: ‎2024-03-19 01:53 AM

Hi,

This may be caused by wiring at the EPO ( Emergency Power Off ) board which is located on the opposite wall from the Maint Byp board at lower rear of UPS.

Verify the following wiring to see if configured for N.O. or N.C.

For instance, if not using any EPO switch then there should be a jumper at terminals 5 & 6 of J4 and no jumper at terminals 1 & 2 of the J5

If this all checks good then I would try replacing the EPO board and finally the Ext Sw Gear Mon Card if needed.

I also recommend you contact Technical Support at 1-800-890-4272 when prompted press 4 then press 4 again for 3 phase support. 

Attachments
Reply

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

BillP
Administrator BillP Administrator
Administrator

Posted: ‎2021-06-26 02:45 AM . Last Modified: ‎2024-03-19 01:53 AM

0 Likes
0
1264
  • Mark as New
  • Bookmark
  • Subscribe
  • Mute
  • Subscribe to RSS Feed
  • Permalink
  • Print
  • Email to a Friend
  • Report Inappropriate Content

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

Posted: ‎2021-06-26 02:45 AM . Last Modified: ‎2024-03-19 01:53 AM

Bill, I cannot thank you enough; you saved me $$$$.  That is perfect.  I now have the APC EPW9 wired to 1/2 of J5 and 5/6 jumpered on J4...with switch gear card in...now ZERO FAULTS and no more beeping!!!!  Thank you so much Bill...I owe you!

GSM

Reply

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

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