10 Introduction to the manual
Exclusion of liability
ABB is not responsible for the implementation, verification and validation of the overall
safety system. It is the responsibility of the system integrator (or other party) who is
responsible for the overall system and system safety.
The system integrator (or other responsible party) must make sure that the entire
implementation complies with all relevant standards, directives and local electrical code,
and that the system is tested, verified and validated correctly.
Quick reference guide for implementing a safety system
STO
Safe torque off. In this manual, this term is used in two different
contexts:
• the STO circuit in the drive (the drive STO function)
• the STO safety function in the FSO module.
Safety functions in the FSO module (eg, STO, SSE, SS1 and
POUS) activate the drive STO function, that is, open the drive STO
circuit. In addition, some safety functions can activate the STO
safety function in the FSO module, which in turn opens the drive
STO circuit.
EN/IEC 61800-5-2
Task
Select the appropriate functional safety
standard for the implementation: EN ISO 13849-1,
EN/IEC 62061, IEC 61511 or other.
If you select EN/IEC 62061 or IEC 61511, make a safety plan. See EN/IEC 62061 or IEC 61511.
Assess safety: analyze and evaluate risks (estimate SIL/PL) and define risk reduction strategies.
Define the safety requirements.
Design the safety system. The part of the design made by ABB is described in chapter
on page
Verify the achieved SIL/PL with, for example, FSDT-01 Functional safety design tool or similar. See
Functional safety design tool user’s manual
(3AXD10000102417 [English]).
Connect the wiring. See section
on page
.
Set the necessary parameters. See chapter
on page
Validate that the implemented system meets the safety requirements:
• Do the acceptance test. See chapter
Write the necessary documentation.
Abbreviation
Description
Reference
