Compact stepper motor drive with Safe Torque Off (STO)

B&R has integrated safe pulse disabling in the ACOPOSmicro Stepper drives for shutting down safely and preventing unexpected startup. Safety ratings up to SIL2 / PLd / CAT 3 can be achieved, depending on the wiring.

Safe pulse disabling interrupts the power being sent to the drive; electrical torque can then no longer be generated, so the drive coasts to a stop. This means the drive meets the requirements for preventing unexpected startup in accordance with EN 1037 (Safety of machinery. Prevention of unexpected start-up), as well as the requirements concerning Category 0 stop functions in accordance with EN 60204-1 (Safety of machinery. Electrical equipment of machines. General requirements). In addition, the stepper drive meets the requirements concerning the STO safety function in accordance with EN 61800-5-2 (Adjustable speed electrical power drive systems - Part 5-2: Safety requirements - Functional).

Follow the link for more information about the ACOPOSmicro Stepper drive with Safety Torque Off (STO).