Why Can’t I Connect SoMove Software to a Process Drive When It Displays STO?
Resolution:
StO (Safe Torque Off) is a safety function that prevents the drive from operating. When the drive is in the StO state, it cannot be controlled by any operating interface, including SoMove software. As a result, SoMove cannot establish a connection to the drive while StO is active.
How to resolve the issue:
- If you removed only the factory-installed jumper from the P24, STOA, and STOB terminals and are not using an external safety contact, reinstall the jumper.
- For control wiring, use the 24V terminal instead of P24.
Once the StO condition is cleared, you should be able to connect to the drive using SoMove software.
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
