AC Drives and VFD
The Powerflex Safe Torque Off (STO) safely disables motor movement without fully shutting down the drive system.
The PowerFlex Safe Torque Off (STO) function is a safety feature built into PowerFlex drives. Its main purpose is to prevent the motor from generating torque, meaning it can't turn or move, even though the drive may still be powered. This is typically used during maintenance or emergency stops to ensure that the machinery doesn't accidentally start, helping to protect personnel and equipment.