Safe Stop Installation; Safe Stop Of The Frequency Converter - Danfoss VLT AQUA Drive FC 200 Operating Instructions Manual

2 Safety

2.1.6 Safe Stop Installation

To carry out an installation of a Category 0 Stop (EN60204) in
conformity with Safety Category 3 (EN954-1), follow these in-
structions:
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1. The bridge (jumper) between Terminal 37 and 24 V DC must be
removed. Cutting or breaking the jumper is not sufficient. Re-
move it entirely to avoid short-circuiting. See jumper on illus-
tration.
2. Connect terminal 37 to 24 V DC by a short-circuit protected ca-
ble. The 24 V DC voltage supply must be interruptible by an
EN954-1 Category 3 circuit interrupt device. If the interrupt de-
vice and the frequency converter are placed in the same instal-
lation panel, you can use an unscreened cable instead of a
screened one.
The illustration below shows a Stopping Category 0 (EN 60204-1) with safety Category 3 (EN 954-1). The circuit interrupt is caused by an opening door
contact. The illustration also shows how to connect a non-safety related hardware coast.
Illustration 2.2: Illustration of the essential aspects of an installation to achieve a Stopping Category 0 (EN 60204-1) with safety Category
3 (EN 954-1).

2.1.7 Safe Stop of the Frequency Converter

For versions fitted with a Safe Stop terminal 37 input, the frequency converter can perform the safety function
Stop Category 0 (as defined in EN 60204-1).
IEC 61800-5-2) or
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 VLT AQUA Drive Design Guide MG.20.NX.YY 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!
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VLT AQUA Low Harmonic Drive Operating In-
Illustration 2.1: Bridge jumper between terminal 37 and 24
VDC
®
MG.20.T1.02 - VLT is a registered Danfoss trademark
Safe Torque Off (As defined by draft CD
structions