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Auxiliary control cubicle (ACU) layout
A layout example of the auxiliary control cubicle (ACU) is shown below. On the left:
Swing-out frame closed, detachable mounting plates in place. On the right: Swing-out
frame open, without detachable mounting plates.
40 Operation principle and hardware description
Auxiliary control cubicle (ACU) layout
A layout example of the auxiliary control cubicle (ACU) is shown below.
1 Fuse-disconnectors F101. On the primary of
transformer T101 (item 27).
19 Lead-through for control cables
2 Fuse-disconnectors F27 for motor cooling fan
outputs (options +M602…610)
20 Terminal block X68 for FSO-xx safety functions
module (option +Q973)
3 Supply control unit [A51]. See chapter Control
units of the drive (page 123)
21 I/O terminal block (option +L504). The I/O of the
inverter control unit is wired to this block.
4 Inverter control unit [A41]. Three optional I/O
extension, encoder interface, or fieldbus
adapter modules can be installed on the unit.
Additional modules are installed on item 13.
See chapter Control units of the drive (page
123)
22 Grounding/clamping point for control cables
5 Auxiliary voltage circuit breaker F112. On the
secondary of transformer T111 (item 29).
Mounted on the right-hand inside wall.
23 24 V DC power supply and buffer module
Swing-out frame closed,
detachable mounting plates in place
Swing-out frame open,
without detachable mounting plates
3
2
4
5
1
8
9
10
11
12
13
14 15 16
17 18
19
20 21
22
23
24
25
25
26
27
28
30
3132
33
29
34
9
6
35
7
Lead-through for control cables19Fuse-disconnectors F101. On the primary of
transformer T101 (item 27).
1
Terminal block (X68) for FSO-xx safety func-
tions module (option +Q972 or +Q973)
20Fuse-disconnectors (F27) for motor cooling
fan outputs (options +M602…610)
2
I/O terminal block (option +L504). The I/O
of the inverter control unit is wired to this
block.
21Supply control unit (A51). See chapter Control
units of the drive (page 143).
3
Grounding/clamping point for control cables22Inverter control unit (A41). Three optional I/O
extension, encoder interface, or fieldbus ad-
apter modules can be installed on the unit.
Additional modules are installed on item 13.
See chapter Control units of the
drive (page 143).
4
24 V DC power supply and buffer module23Auxiliary voltage circuit breaker F112. On the
secondary of transformer T111 (item 29).
Mounted on the right-hand inside wall.
5
42 Operation principle and hardware description