Safe Stop Installation (Fc 302 And Fc 301 - A1 Enclosure Only); It Mains - Danfoss VLT AutomationDrive FC 300 Operating Instructions Manual

®
VLT AutomationDrive FC 300 Operating
Instructions

2.1.6. Safe Stop Installation (FC 302 and FC 301 - A1 enclosure only)

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 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 a regular cable instead of a protected
one.
3. Unless the FC302 itself has protection class IP54 and higher, it
must be placed in an IP 54 enclosure. Consequently, FC301 A1
must always be placed in an IP 54 enclosure.
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. IT Mains

RFI 1
Par. 14-50 can be used to disconnect the internal RFI capacitors from the RFI filter to ground in the 380 - 500 V frequency converters. If this is
done it will reduce the RFI performance to A2 level. For the 525 - 690 V frequency converters, par 14-50 has no function. The RFI switch cannot be
opened.
Illustration 2.1: Bridge jumper between terminal 37 and 24 VDC
MG.33.AB.02 - VLT is a registered Danfoss trademark
2. Safety Instructions and General Warning
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