Air Humidity; Aggressive Environments - Danfoss VLT AutomationDrive FC 300 Design Manual

FC 300 Design Guide
A Cold plate technology
The frequency converter is built upon a very stable aluminium base integrated with the back panel.
This provides high mechanical stability, efficient cooling and the possibility of cold plate operation. The
cold plate serves as a flat cooling surface on the frequency converter, where a majority of the heat
losses dissipates from the electronics to an external cooling surface.
B DC coil
The built-in DC coil ensures low harmonic disturbance of the power supply according to IEC-1000-3-2.
C Air guiding screen
The screen allows cold air to pass by the electronics only. The plastic air guide screen is enclosed in
the package and is easily snapped in place. If the frequency converter is to operate as a cold plate
drive, the air guiding screen is inserted in the cooling channel through the bottom of the drive if it
is snapped unto the fan. Thus, the amount of heat transferred to the surroundings via the cooling
air from the fan is reduced.
D Removable fan
Like most of the elements, the fan can easily be removed for easy cleaning and remounted.
E Safe Stop (FC 302 only)
The frequency converter comes standard prepared for installations with the safe stop functionality
for stop category 0 (EN 60204-1) with safety category 3 (EN 954-1). This feature prevents the
drive from starting unintended.
F Control terminals
Spring-loaded cage clamps, screw less terminals, add to reliability and facilitate easy commissioning
and service.
G Options
Options for bus communication, I/O extension etc. can be delivered extra or ordered built-in (and
tested together with the drive) from the factory. Options mounted under the LCP are referred to as
option Slot A (top) and option Slot B (bottom). Option C is mounted on the side of the drive, while
option D is mounted underneath the control cable decoupling plate.
H Local Control Panel
The LCP 102 has a graphical user-interface. Choose between 27 built-in languages (including Chinese)
or have it customised with your own languages and phrases.
Additionally a simple version, LCP 101, is available with an alpha- numeric display. A complete
programming of FC 301 and FC 302 can be handled by both LCP's.
J Hot plugable LCP
The LCP can be plugged in or out during operation. Settings are easily transferred via the control panel
from one drive to another or from a PC with the MCT-10 set-up software.

Air Humidity

"
The frequency converter has been designed to meet the IEC/EN 60068-2-3 stan-
dard, EN 50178 pkt. 9.4.2.2 at 50°C.

Aggressive Environments

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A frequency converter contains a large number of mechanical and electronic components. All
are to some extent vulnerable to environmental effects.
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Introduction to FC 300
MG.33.B4.02 - VLT is a registered Danfoss trademark