Mounting; Wiring - Danfoss VLT Micro Drive FC 51 Design Manual

Selection

4.1.15 Mounting

There are 2 options for mounting the line filter correctly:
Front mounting
•
Mount the filter in a vertical position with the
terminals at the bottom.
•
4 4 Mount the frequency converter on the front of
the line filter using 3 M4 bolts.
Illustration 4.28 Line Filter with Frequency Converter
•
Ensure metal-to-metal contact between filter and
frequency converter.
NOTICE
Metal-to-metal contact improves EMC performance and
enables the base plate of the frequency converter to
function as heat sink for the line filter.
Side mounting
•
Mount the filter side-by-side with the frequency
converter.
There is no requirement for spacing between
filter and frequency converter.
•
Mount the back of the line filter to a cooling
surface, such as a metal wall. Alternatively, derate
the line filter by 1 size: For example, use a
0.75 kW (1 hp) line filter with a 0.37 kW (0.5 hp)
frequency converter.
CAUTION
HIGH TEMPERATURES
Risk of fire or device damage.
•
Do not mount the line filter close to heat-
sensitive material (such as wood).
34
®
VLT Micro Drive FC 51

4.1.16 Wiring

LEAKAGE CURRENT HAZARD
Leakage currents exceed 3.5 mA. Failure to ground the
line filter properly can result in death or serious injury.
•
1.
2.
3.
4.
Illustration 4.29 Line 1
Illustration 4.30 Line 2
Danfoss A/S © 01/2016 All rights reserved.
WARNING
Ensure the correct grounding of the equipment
by a certified electrical installer.
Connect line filter to protective earth (PE). Use a
cabinet mounting panel or similar to achieve
optimum grounding conditions.
Connect input terminal to mains power (cable
not supplied).
Connect output cable to the input terminals of
the frequency converter.
Ensure solid electrical contact between line filter
and frequency converter (high frequency
grounding).
MCC 107 FC 51
PE
L
U
L
V
N
W
N
PE
MCC 107 FC 51
PE
L1
L1
L2
L2
L3
L3 W
PE
PE
U
M
3~
V
W
PE
U
U
M
3~
V
V
W
MG02K402