Our Brands

Welcome to the Schneider Electric Website

Welcome to our website.
		
How can we help you today?
AL003 or undervoltage error on LXM28 servo drive
Issue:
I get AL003 when I power up the LXM28 drive

Product Line
LXM28

Cause:
AL003 alarm on power-up

Resolution:
Alarm code AL003 will always occur if the ´Control Supply´ on L1 and L2 is connected but the ´Power Supply´ is not connected on R and S (T) when the drive has already booted up.
If you ensure that the the mains supply voltage is correct, you can either do an explicit "Fault Reset" or an automatic reset.
The drive provides a parameter to make an automatic "Fault Reset" after the undervoltage error AL003 is detected.
It's parameter P2:66 (Bit 2 = TRUE). When you set P2:66 to 4, the AL003 will be reset automatically after the power supply is connected and the voltage level is correct.
The ´Undervoltage Monitoring - Threshold Value´ can be set with parameter P4:24

Schneider Electric Ireland

Explore more
Range:
Users group

Discuss this topic with experts

Visit our community and get advice from experts and peers on this topic and more
Explore more
Range:

Need help?

  • Where to buy?

    Easily find the nearest Schneider Electric distributor in your location.

  • Search FAQs

    Search topic-related frequently asked questions to find answers you need.

  • Contact Sales

    Start your sales enquiry online and an expert will connect with you.

  • All Support & Contact

    Find answers now. Search for a solution on your own, or connect with one of our experts.

I'd like to receive news and commercial info from Schneider Electric and its affiliates via electronic communication means such as email, and I agree to the collection of information on the opening and clicks on these emails (using invisible pixels in the images), to measure performance of our communications and improve them. For more details, please read our Privacy Policy.

  • Products Documentation
  • Software Downloads
  • Product Selector
  • Product Substitution and Replacement
  • Help and Contact Centre
  • Find our Offices
  • Where to buy
  • Careers
  • Company Profile
  • Report a misconduct
  • Accessibility
  • Newsroom
  • Investors
  • EcoStruxure
  • Job Search
  • Blog
  • Privacy Policy
  • Cookie Notice
  • Terms of use
  • Change your cookie settings
Your browser is out of date and has known security issues.

It also may not display all features of this website or other websites.

Please upgrade your browser to access all of the features of this website.

Latest version for Google Chrome, Mozilla Firefox or Microsoft Edgeis recommended for optimal functionality.