Can one 24V DC supply be used for multiple Altivar 320 STO terminals?
Resolution:
No, it is not recommended to use a single 24V DC supply for multiple Altivar 320 drives when wiring the Safe Torque Off (STO) terminals.
For reliable operation and to prevent nuisance tripping, each drive should have its own stable 24V DC supply to the STO terminals. Sharing a single supply across multiple drives can lead to voltage drops or instability, which may cause unintended STO activation.
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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.
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