Siemens SINAMICS S120 Manual page 71

Table 4- 1 Electrical installation: Checklist
Item Activity
General information
1 For strain relief, the cables must be clamped on the cable propping bar (C-type mount-
ing bar).
2 When EMC-shielded cables are used, screwed glands that connect the shield to
ground with the greatest possible surface area must be provided on the motor terminal
box. In the cabinet, the cable shields must be secured to the shield buses/plates with
the fixing accessories provided to ensure proper EMC.
3 PE busbar
4 DC busbar
5 Auxiliary power supply
system
6 For Cabinet Modules not used as a transport unit, connections on the plant side must
be made according to the circuit diagram.
The open connections that are correspondingly marked must be wired according to the
circuit diagram.
Power connections
7 A yellow warning label is attached to the basic interference suppression module at
each connection clip.
The warning label must removed from the connection clip (by pulling it off) if the
•
connection clip is to remain in the unit (operation on a grounded line supply).
The warning label must be removed together with the connection clip if the unit is
•
operated on a non-grounded line supply (IT system).
(→ See following Section "Connecting the Cabinet Modules to non-grounded line sup-
plies (IT system)"
8 The cables must be properly connected with the required torque to the terminals pro-
vided.
The maximum permissible cable lengths between the Motor Module and the motor
must be observed depending on the type of cable used.
(→ See following Section "Connecting the motor cables")
(→ See Chapter "Cabinet Modules", Section "Motor Modules")
9 With a parallel connection of Motor Modules and connection to a motor with a single-
winding system, it is essential either to observe the specified minimum cable lengths or
to install a motor reactor (option L08).
(→ See Chapter "Cabinet Modules", in Section "Motor Modules")
10 The cable shields must be properly applied.
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
The PE busbar between the cabinet units or transport units
must be linked.
A connection with the ground for the entire system must also
be established!
(→ See following Section "PE busbar")
When several cabinet units or transport units are installed
side-by-side, the DC busbars must be connected to each
other by means of the jumpers provided.
(→ See following Section "DC busbar")
The terminals for the auxiliary power supply must be connect-
ed with one another between the cabinet units or transport
units.
Make sure that the correct voltage is applied!
(→ See following Section "Auxiliary power supply system")
Electrical installation
4.2 Electrical installation: Checklist
Applicable?/Completed?
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