Siemens SINAMICS DCM Betriebsanleitung Seite 366

Electrical installation
4.2 Checklist for electrical installation
Item Activity
Power connections
1 The line-side and motor-side electric power cables and the cables for
the auxiliary supply/supplies must be dimensioned and
routed in accordance with the ambient and routing conditions.
The correct and uniform phase sequence must be observed in
both sub-cabinets when connecting cabinet units in parallel (applies to
non-standard project-specific power expansion solutions).
The protective conductor cross-section should be dimensioned according to the
country-specific regulations for protective grounding conductors for equipment with a
high leakage current. Refer to Chapter
Technical specifications (Page 142) for the maximum possible connection cross-
sections.
The motor protective conductor must be connected directly to the cabinet.
The cables must be properly connected to the system connection points as
per the type- and order-specific circuit diagram with the torque as specified
in the table "Tightening torques for connecting current-conducting parts" in
Chapter Technical specifications (Page 142). The cables must also be connected to
the motor
and the low-voltage switchgear with the required tightening
torques.
The cables must be identified uniquely and permanently with cable numbers
and the cable numbers must be documented on the terminal diagram.
2 The cables between the low-voltage switchgear and the cabinet must be protected
with line fuses to provide adequate conductor protection (DIN VDE 100, Part 430
and/or IEC 60364-4-43) The maximum permissible rated currents of the relevant
fuses for power unit and auxiliary supply/supplies can be found in the Chapter
Technical specifications (Page 142) or in the type- and order-specific circuit dia-
gram.
3 For strain relief, the cables must be clamped to the cable retaining bar
(C-type mounting bar)
4 The cabinet must be properly grounded at the appropriate points (see Chapter Elec-
trical Installation/ EMC-compliant design (Page 63))
5 Main switch incl.
fuses/circuit breakers
6 Option L50 Cabinet
lighting with service
socket
7 Option L55
Cabinet anti-
condensation heat-
ing
54
For versions with a circuit breaker (≥950 A DC
rated current), the trip current must be set to match the situa-
tion at the installation.
See Chapter Electrical installation / Power connections /
Main switch incl. fuses/circuit breakers (Page 82).
The 230 V auxiliary supply for the cabinet lighting with an
integrated service socket must be connected to terminal -
X4.1 .2 and must be protected in the low-voltage switchgear
with a max. 13 A fuse.
See description of options.
The 230 V auxiliary supply for the cabinet anti-condensation
heating (power type-specific) must be connected to terminals
-X4.3 .4 and
must be protected in the low-voltage switchgear with a max.
16 A fuse.
See description of options.
Operating Instructions, 04/2015, A5E36161239/RS-AA/001
Yes Completed
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SINAMICS DCM Cabinet