WARNING
EMERGENCY OFF
The STO function does not provide electrical safety, and is not sufficient to implement the Emergency-Off function as defined
by EN 60204-1. Failure to implement the Emergency-Off function properly can result in death or serious injury.
-
Ensure safe isolation of electricity, for example, by installing an emergency stop contactor to disconnect mains.
CAUTION
The operator or electrical installer is responsible for proper grounding and compliance with all applicable national and local
safety regulations.
2.6 Risk Assessment
NOTICE
The safety option is intended to be part of the safety-related control system of a machine. Before installation, perform a risk
assessment to determine whether the specifications of this safety option are suitable for all foreseeable operational and
environmental characteristics for the system in which it will be installed.
The system user is responsible for:
•
Set-up, safety rating, and validation of any actuators connected to the system.
•
Completing a system-level risk assessment and reassessing the system anytime a change is made.
•
Providing supposition (as needed for the application) that the system fulfills the requested safety rating.
•
Project management and proof testing.
•
Programming the application software and the safety option configurations in accordance with the information in this manual.
•
Access to the control system.
•
Access to the safety option customization (configuration changes).
•
Analyzing all configuration settings and selecting the proper setting to achieve the required safety rating.
2.6.1 Validation of Performance Level
Check whether the required Performance Level “PLr”, determined in the risk assessment, is achieved by the selected system for each
safety sub-function used. Check the calculation using the SISTEMA SW Tool of IFA (Institute for Occupational Safety & Health). Danfoss
provides a component library, which can be used for the calculation. Danfoss offers corresponding services to support the system
check by calculation. The library can be downloaded from
.
If using another validation method for the performance level, use the characteristic safety values specified.
Safety
Installation Guide | VLT®Safety Option MCB 152
AN327351953089en-000101 / 130R0578| 13
Danfoss A/S © 2020.02
Содержание MCB 152
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