Safe Torque Off (STO) Example on Sigma 5 and Sigma 7 SERVOPACKs
Topic Description

Safe Torque Off (STO) is a function where an external safety device can be hard-wired into the SERVOPACK to provide an instant STOP command if the safety device trips.

  • For example, some applications will wire the machine's E-STOP circuit to trigger STO instead of cutting main power to the SERVOPACKs.

Note: The STO function is not the same function as the FSTP (Forced Stop Input) found on Sigma-7 SERVOPACKs.
Resolution

The pictures below are examples of the wiring for the Safe Torque Off (STO) CN8 connection on the servopack.

Note: Wiring should be performed to meet safety standards, this reference is provided as an example only.


Related Documents
CN8 safety function operation and Pin out of CN8 on Sigma-5 and Sigma-7 SERVOPACKs
J1000 Safe Torque Off
Troubleshooting A.71 or A.710 Alarms

Product Types
Sigma-5 Series, Sigma-7Siec - Controller, SGD7S Analog, SGD7S EtherCAT, SGDV, SGD7S Mechatrolink-III, Sigma-7Siec - Servopack, SGD7W EtherCAT, SGD7W Mechatrolink-III, SigmaLogic7 Compact, SigmaLogic7 Modbus,
All Applications
Advanced Random Rotary Knife with Cam Blend, Air Compressor, Blister pack Thermoformer, Cartoner, Centrifuge, Conveyor, Crane/Hoist, Dynamometer, Elevators and Escalators, Extrusion, Fans/Blowers, Feed To Length, General Machinery, HVAC, Irrigation, Labeler, Laundry, Linear Flying Shear, Machine Tool, Mixer, Other, Packaging, Palletizer, Precision Grinding, Pump, Punch Press, Rotary Knife, Rotary Placer, Rotary Table Indexer, Screw Feeder, Semiconductor, Solar Cell Tabbing and Bussing, Solar - Textured Etching, Synch-Belt, Textile, Winding,
Last Modified Date: 07-22-2024ID: 12808