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Master machine building with drive-based functional safety

Safer machines and processes with ABB drives

When designing functional safety you need tools and devices such as drives with safe torque off to deliver efficient and safe results. When building a safety system, you must ensure all devices can communicate with each other reliably and quickly. The more you can integrate safety functionalities into the machine’s control system, the more savings it will bring you. Our scalable portfolio of drives, safety devices and solutions will help you do just that.

Drives used in functional safety solutions
Safety communication between drive and PLC
Tool to simplify safety design
Typical safety functions supported by ABB drives
Integrated safety in drives

Our all-compatible drives have the basic safety function safe torque off (STO) built-in as standard. This integrated safety functionality can be extended with a range of available options. This includes the Safety functions module (FSO-12 or -21) for ACS880 industrial and machinery drives. This plug in safety functions module works without an encoder, requiring no external hard-wired logic or feedback from the motor. It is easy to integrate inside the ACS880 drive and offers up to 10 different safety functions, thus ensuring safe use of the application.

Access ABB drive types with specific safety information

Get to know ABB's FSO-12 and -21 safety functions module

Safety communication with PROFIsafe

When a safety system includes several drives, a safety PLC is used for controlling drives and machines from a common source. Different safety functions can be performed in the application, all controlled by one common safety PLC. Our ACS880 industrial and machinery drives offer PROFIsafe connectivity over PROFINET, which means communication between them and a PLC is safe, fast and more reliable. In addition, communication diagnostics is also made possible. The drive is connected to the PLC with a PROFINET fieldbus adapter module (FPNO-21) that provides PROFIsafe connectivity together with FSO-12 and -21 Safety functions modules.

Get more information about the Safety functions modules (FSO-12 and -21) and Pulse encoder interface module (FSE-31)

Access information about ABB's safety PLC AC500-S

ABB's functional safety design tool

When designing safety functions for applications a safety calculation has to be done according to international functional safety standards (EN ISO 13849-1 and IEC 62061).This tool helps you perform risk estimation, define required safety integrity (SIL) / performance level (PL) for safety functions, verify achieved safety level and generate design reports.

Download the free FSDT-01 functional safety design tool

Typical safety functions with drives

Our drives are part of machines controlling the speed and torque of the motor that's driving the machine. Our drives can perform safety functions such as Safe torque off (STO), Safely limited-speed (SLS), Safe break control (SBC), Safe maximum speed (SMS), Safe stop emergency (SSE), Safe stop 1 (SS1)

Find out more about typical safety functions supported by ABB drives

Functional safety references and articles

Functional safety products

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