Safety concept

• In the event of danger, any potential risk related to a machine must be eliminated as quickly as possible. Idle state with restart prevention is generally the safe state for preventing dangerous movements.
• The STO function is available independently of the operating mode or parameter settings.
• The inverter offers the possibility of connecting an external safety relay. This safety relay activates the STO function when a connected command device (e.g. emergency stop button with latching function) is actuated. The motor coasts to a halt and is now in the "Safe Torque Off" state.
• The active STO function prevents the inverter from supplying a torque-generating rotating field to the motor.

• Safe disconnection function (STO)
• Safe Torque Off function
• STO status and diagnostics
• Response times of STO function