by an opening door contact. The illustration also shows
how to connect a non-safety related hardware coast.
Control
board
Rectifier
Inverter
Safe
channel
Safety device Cat.3 (Circuit interrupt
device, possibly with release input)
Coast
Short-circuit protected cable
(if not inside installation cabinet)
Door contact
Mains
Frequency
Converter
M
37
5Vdc
12
R
1
R
2
6 phase
130BB566.10
Figure 2.2 Essential aspects of an installation to achieve a Stopping Category 0 (EN 60204-1) with safety Category 3 (EN 954-1).
2.1.8 IT Line Power
14-50 RFI 1
can be used to disable the factory installed
A1/B1 RFI filter option. If this is done, it will reduce the RFI
performance to A2 level. For the 525–690V adjustable
frequency drives,
14-50 RFI 1
is not available as there is no
A1/B1 Factory Installed RFI Filter option.
Safety
VLT AQUA 12-Pulse High Power Instruction Manual
MG.20.Y1.22 - VLT
®
is a registered Danfoss trademark
2-3
2
2
