To save you time and money, the integrated safety features in our machinery drives are the best solutions existing on the market. Both drives offer the basic safety function, safe torque off (STO), as standard. Safety functions can be extended further with a range of available options. The fastest and easiest of these is the safety functions module (FSO-12 or 21) available for the ACS880 machinery drives. This plug in safety module works encoderlessly, requiring no external hard-wired logic or feedback from the motor. It is easily integrated inside the ACS880 drive and offers up to 8 different safety functions to speed up your work. ABB can also supply other safety devices and solutions such as safety encoders, light curtains and safety cages, to protect people and property while keeping the machine productive.