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18 Operation principle and hardware description
Frame R8i layout
This figure shows the layout of the R8i module.
A
R8i module, front
B
R8i module, back
1
DC busbars
2
Handle
3
LEDs and fiber optic connectors
4
Fan (standard speed-controlled fan shown; a direct-on-line fan is available as option +C188)
5
Quick connector (three phases). The counterpart is fastened to the cabinet behind the module.
6
Wheels
7
Type designation label
8
Terminal block [X50] (power supply for internal boards and module heating element, option +C183; DOL
fan supply, option +C188)
9
Connectors [X51], [X52], [X53]
10
The unpainted grounding point (PE) between module frame and cabinet frame.
11
Lifting eyes
12
Circuit board compartment fan
A
8
7
5
3
2
4
B
1
10
12
9
6
11
5
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