How do I deal with an ATV320 showing STO on the screen?

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Issue:
ATV320 STO status on screen.

Product line:
Altivar 320

Environment:
All

Cause:
There is a circuit in the terminal block that is not closed.

Resolution:
On the terminal block, look for P24. There must be a jumper between P24-STO.
Without this jumper the drive will display STO on the screen and will not be able to run.