Safe Stop - Danfoss VLT HVAC Drive FC 100 Series Design Manual

2. Introduction to VLT HVAC Drive

2.14. Safe Stop

2.14.1. Safe Stop
2
The frequency converter can perform the safety function
60204-1).
It is designed and approved suitable for the requirements of Safety Category 3 in EN 954-1. This functionality is called Safe Stop. Prior to integration and
use of Safe Stop in an installation, a thorough risk analysis on the installation must be carried out in order to determine whether the Safe Stop functionality
and safety category are appropriate and sufficient. In order to install and use the Safe Stop function in accordance with the requirements of Safety
Category 3 in EN 954-1, the related information and instructions of the relevant Design Guide must be followed! The information and instructions of the
Operating Instructions are not sufficient for a correct and safe use of the Safe Stop functionality!
Illustration 2.8: Diagram showing all electrical terminals. (Terminal 37 present for units with Safe Stop Function only.)
48
Safe Torque Off
(As defined by draft CD IEC 61800-5-2) or
MG.11.B7.02 - VLT ® is a registered Danfoss trademark
®
VLT HVAC Drive Design Guide
Stop Category 0
(as defined in EN