2.1.8. Safe Stop Installation
To carry out an installation of a Catego-
ry 0 Stop (EN60204) in conformity with
Safety Category 3 (EN954-1), follow
these instructions:
1.
The bridge (jumper) between Termi-
nal 37 and 24 V DC must be re-
moved. Cutting or breaking the
jumper is not sufficient. Remove it
entirely to avoid short-circuiting. See
jumper on illustration.
2.
Connect terminal 37 to 24 V DC by a
short-circuit protected cable. The 24
V DC voltage supply must be inter-
ruptible by an EN954-1 Category 3
circuit interrupt device. If the inter-
rupt device and the frequency con-
verter are placed in the same instal-
lation panel, you can use an
unscreened cable instead of a
screened one.
Illustration 2.1: Bridge jumper between terminal
37 and 24 VDC
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).
2.1.9. IT Mains
Par. 14-50
RFI 1
can on FC 102/202/302 be used to disconnect the internal RFI capacitors from
the RFI filter to ground. If this is done it will reduce the RFI performance to A2 level.
2. Safety Instructions and General Warning
VLT
®
Automation Drive FC 300
Operating Instructions High Power
10
MG.33.U1.02 - VLT
®
is a registered Danfoss trademark
2
