What should the DC bus measure on an ATV312H...N4?
Resolution:
The DC bus voltage on an ATV312H…N4 drive depends on the incoming AC supply voltage.
As a general rule, the DC bus voltage will be approximately equal to the peak value of the line supply voltage.
Example:
- If the line supply voltage is 480 VAC (RMS)
- The expected DC bus voltage is:
480 × 1.414 ≈ 678 VDC
This relationship applies because the DC bus reflects the rectified peak of the AC input voltage.
If this article does not answer your question, check out our FAQ database that has answers to more commonly asked questions:
Frequently Asked Questions - Schneider Electric (se.com)
If this FAQ did not solve your issue, you can call us at 1-888-778-2733 Option 2 and then 4 or e-mail us atdrive.products.support@se.comto create a case with our Technical Support Team.
If you are not located in North America, please contact your local Customer Care Center for assistance:
Released for: Schneider Electric Canada
Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales inquiry online and en expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Center
Find support resources for all your needs, in one place.