Mechanical installation
35
3ADW000462R0401 DCS880 Hardware manual e d
Mounting the H7 power unit inside an enclosure
Cooling air inlet
The cooling fan takes the air from the back, left, right side and from the bottom of
the converter module. View from:
Free space around the converter module
Optimum Compromise
Cooling air outlet
To avoid circulating air inside the enclosure make sure
the exhaust air leaves the enclosure.
Cable entries
Power cable connection
The power cable connection is done via
option
3ADT786223
. This option consists of 5 rectangular
copper busbars with screws. The mechanical details
are shown in the figure below.
The figure below gives an example, how the
rectangular busbars can be mounted in case all cable
connections are made at the left side of the converter
module. This results in four layers of power cables.
In case the AC or DC connection or perhaps both
of them have to be made at the right side of the
converter module use the space behind the converter.
Move the power terminals via rectangular busbars to
the final connection points. In this case the busbars
need to be fixed at the enclosure, not at the converter
module! The figures below give a rough example, how
connections can be made.
When mounting the rectagular busbars or connecting
cables directly please make sure the correct bolts are
used. The converter module is equipped with
threaded holes at its left side. Because of that the
length of the screw threads is limited to 35 mm (see
drawing below).
BG_800_002_A6_a.ai
air flow
air flow
air flow
air flow
air flow
air flow
Right side Back side Left side
50
50
~ 100
50
TMR
~ 100
BG_800_002_A6_a.ai
Top view
Top view
C
D
U
V
W
BG_800_002_A6_a.ai
do not unscre
w these bolts!
electr
onics po
wer suppl
y
contr
ol cab
les
pressure
s
witc
h
con
ver
ter fan
(left and r
ight sid
e)
The module must be fixed
at the upper side with the
TMR (Top Mounting Rail).
100
72.2
21.8
0
0
25
75
12
5
17
5
27
2
31
2
35
2
37
2
25
75
Ø14
250
14
0
A6_cable_term_busb.dsf
max.
3
5 mm
BG_
8
00_002_A6_a.ai
468.2
136
Example right side connection