Safe Torque Off (STO)

This function is also known as an "uncontrolled stop" and leads to an immediate removal of power to the machine actuators.  

Activation of the mains isolating device automatically triggers this category of stop. During operation this function will cause the motor to run down in an uncontrolled manner, which is not desirable in practice. As a result, this function is usually combined with the safety function (SS1) or is used as a safe restart interlock.

Headoffice

Pilz GmbH & Co. KG
Felix-Wankel-Straße 2
73760 Ostfildern
Germany

Telephone: +49 711 3409-0
E-Mail: info@pilz.de

Technical Support

Telephone: +49 711 3409 444
E-Mail: support@pilz.com

Americas

  • Mexico: +52 55 5572 1300
  • United States (toll-free): +1 877-PILZUSA (745-9872)
  • Canada: +1 888-315-PILZ (315-7459)
  • Brazil: + 55 11 4942-7032

Europe

  • Ireland: +353 21 4804983
  • Austria: +43 1 7986263-444
  • United Kingdom: +44 1536 460866
  • Germany: +49 711 3409 444
  • France (toll-free): +33 3 88104000
  • Sweden: +46 300 13990 / +45 74436332
  • Denmark: +45 74436332
  • Netherlands: +31 347 320477
  • Switzerland: +41 62 889 79 32
  • Turkey: +90 216 5775552
  • Finland: +358 10 3224030 / +45 74436332
  • Spain: +34 938497433
  • Portugal: +351 229 407 594
  • Italy: +39 0362 1826711
  • Russia: +7 495 6654993
  • Belgium: +32 9 321 75 70

Asia Pacific

  • Australia (toll-free): +61 3 9560 0621 / 1300 723 334
  • Thailand: +66 210 54613
  • Japan: +81 45 471 2281
  • South Korea: +82 31 778 3390
  • Singapore: +65 6829 2920
  • China: +86 400-088-3566
  • Taiwan: +886 2 25700068
  • New Zealand: +64 9 6345350
Was this article helpful?