ABB ACS850-04 Hardware Manual page 39

13
2e
2a
4
2e
2a
5
6
3
9
12
8 10
1 Supporting frame of the cabinet
2 Vertical (2a, 2b) and horizontal (2c, 2d) air
baffles that separate the cool and hot
areas (leak-proof lead-throughs). See also
page 46.
2e Optional air baffle that is needed when
there is no fan on the lower part of the
cabinet door (see 1b on page 38).
3 Cabinet grounding busbar (PE)
4 Input power cable including the protective 14 Air flow through the drive module (side view)
ground conductor (PE) of the drive
5 Disconnector and fuses
6 Contactor
7 Drive module
8 Motor cable including the protective
ground conductor of the drive
1
2c
PE
2b U1
V1
15
W1
2d
7
W2
3
V2
U2
11
9
10 External control cables
11 Grounding screws
12 Alternative to grounding screws (11)
13 Air flow to the roof
15 Air inlet gratings in the cabinet door
16 Air inlet for the brake option
17 Air inlet for circuit boards and DC and output busbars
14
JCU control unit.
Note: With an internal control unit (option +P905), the
air inlet 17 is critical for proper cooling of the control
board.
Planning the cabinet installation
39
16
17