NOTICE
-
After installing the STO function, perform a commissioning test. A passed commissioning test is mandatory after initial
installation and after each change to the safety installation (see
NOTICE
-
If required, implement a manual reset function according to EN ISO 13849-1. For automatic restart without manual reset,
observe the requirements detailed in paragraph 6.3.3.2.5 of EN ISO 12100:2010 or equivalent standard.
NOTICE
-
Carry out a risk assessment to select the correct stop category for each stop function in accordance with EN 60204-1.
-
When designing the machine application, consider timing and distance for coast to stop (Stop Category 0 or STO). See
EN 60204-1 for further information.
-
All signals connected to the STO must be supplied by a PELV supply.
8.3 Qualified Personnel for Working with Functional Safety
The STO function can only be installed, programmed, commissioned, maintained, and decommissioned by qualified personnel.
Qualified personnel for the functional safety concept are qualified electrical engineers, or persons who have received training from
qualified electrical engineers and are suitably experienced to operate devices, systems, plant, and machinery in accordance with the
general standards and guidelines for safety technology.
Furthermore, they must:
•
Be familiar with the basic regulations concerning health and safety/accident prevention.
•
Have read and understood the safety guidelines given in this manual.
•
Have a good knowledge of the generic and specialist standards applicable to the specific application.
Users of power drive systems (safety-related) (PDS(SR)) are responsible for:
•
Hazard and risk analysis of the application.
•
The overall safety of the application.
•
Identifying safety functions required and allocating SIL or PL to each of the functions, other subsystems, and the validity of signals
and commands from them.
•
Designing appropriate safety-related control systems, such as hardware, software, and parameterization.
8.4 Applied Standards and Compliance
Use of the STO function requires that all provisions for safety, including relevant laws, regulations, and guidelines, are satisfied.
The integrated STO function complies with the following standards:
Functional Safety Concept
Operating Guide | VLT® Multiaxis Servo Drive MSD 510 System
AQ262450196490en-000101 / 175R1170
154 | Danfoss A/S © 2019.10
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