Safe Stop Installation; Safe Stop Commissioning Test - Danfoss VLT AQUA Design Manual

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VLT AQUA Drive Design Guide

5.4.1. Safe Stop Installation

To carry out an installation of a Category 0 Stop (EN60204) in
conformance with Safety Category 3 (EN954-1), follow these
instructions:
1. The bridge (jumper) between Terminal 37 and 24 V DC of FC
202 must be removed. Cutting or breaking the jumper is not
sufficient. Remove it entirely to avoid short-circuiting. See jump-
er on illustration.
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 a regular cable instead of a protected
one.
The illustration below shows a Stopping Category 0 (EN 60204-1) with safety Cat. 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 5.11: Illustration of the essential aspects of an installation to achieve a Stopping Category 0 (EN 60204-1) with safety
Cat. 3 (EN 954-1).

5.4.2. Safe Stop Commissioning Test

After installation and before first operation, perform a commissioning test of an installation or application making use of FC 200 Safe Stop.
Moreover, perform the test after each modification of the installation or application, which the FC 200 Safe Stop is part of.
The commissioning test:
1. Remove the 24 V DC voltage supply to terminal 37 by the interrupt device while the motor is driven by the FC 202 (i.e. mains supply is not
interrupted). The test step is passed if the motor reacts with a coast and the mechanical brake (if connected) is activated.
2. Then send Reset signal (via Bus, Digital I/O, or [Reset] key). The test step is passed if the motor remains in the Safe Stop state, and the
mechanical brake (if connected) remains activated.
3. Then reapply 24 V DC to terminal 37. The test step is passed if the motor remains in the coasted state, and the mechanical brake (if connected)
remains activated.
Illustration 5.10: Bridge jumper between terminal 37 and 24
VDC.
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MG.20.N3.02 - VLT is a registered Danfoss trademark
5. How to Install
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