Integrated Safe Torque off is different from an emergency stop (E-stop). Depending on the standards and requirements for a particular application, it might be possible to use STO as part of an E-stop system. However, its main purpose is to be used in a dedicated safety control arrangement, designed to prevent foreseeable hazards from occurring. This paper summarizes the main differences between STO and e-stops, the requirements under the standards, the advantages of safe torque off, as well as the role of STO in motor starters.
The Wieland safety application manual showcases examples of safety circuits using our safety relays and controllers; also includes relevant Sistema calculations to help maintain the longevity of your machine’s operating lifecycle. It Covers EN ISO 12100, EN ISO 13849-1, and EN ISO 13849-2.
Update: Version 2 is now available with updated examples! In addition, new topics have been added, such as new aspects of the emergency stop, the use of electrical components with software without safety levels, Lockout/Tag-out (LOTO), and HRC.
The podis® MS 5HP is the first decentralized motor starter in IP65 / NEMA 12 with integrated Safe Torque Off.
Download 0838.1 CA 02/2022
Preventing or mitigating known risks, wherever you are in the safety process, we can provide consultation and a plan of action for the next steps. Services include safety consultation, risk assessments, lockout/ tag-out, safety design, mitigation, validation, & modification.
Download 34.205.0177.0 01/2022
Internationally recognized professional certifications based on the most widely used ISO 13849-1 and -2 standards for functional safety, and ISO 12100 for risk assessments. As well as the realization of safety performance levels (PL), and verification & validation of safety systems.
Wieland Electric offers an introductory course as well as a Certification Exam.
Download CA 12/2021
samos®PRO Controller module, I/O Modules, Gateways
samos® Modular safety modules
safe RELAY Universal safety relays, Basic Device, Basic devices with time function, Contact expansion relays, Standstill monitor
sensor PRO safe signal acquisition, safety light curtains, safety light grids, emergency stop buttons, safety switch with guard locking, safety switch with separated actuator, non-contact safety switches, and magnetic safety switches
Download 0861.1 07/21
Complete solutions for machine building. Safety monitoring, fast installation, reliable connections, and flexibility.
Download 0433.1 01/21
Programmable safety controller samos® PRO COMPACT.
samos® PRO COMPACT can be scaled for different machine and plant sizes.
• Ideal for small, medium-sized and large machines and plants
• Up to 116 safe inputs and 56 outputs with 12 I/O modules
• Usage of safe and standard I/O modules in one system
• Configuration up to two external and one integrated gateway
Download 0881.1 10/20
HMI ECO TOUCH PANELS
The complete package for machines + plants
VISUALIZATION, OPERATION + DIAGNOSIS
Download 0803.1 11/19