External Supply; Ac Auxiliary Supply; Dc Auxiliary Supply - Siemens SINAMICS DCM Betriebsanleitung

Electrical installation

4.8 External supply

4.8 External supply
As standard, the cabinet is supplied with an auxiliary voltage of 3-ph 400 V AC, 50 Hz, with
clockwise rotating field, TN or TT line supply and grounded transformer neutral point. If
option V60, line frequency 60 Hz, is selected, the auxiliary voltage must be 3-ph 460 V AC.
Other auxiliary voltages must be ordered using option Y04. The auxiliary voltage may not
exceed 690 V. The auxiliary power supply must be secured on the line-side against short-
circuit and overload.
If there is no auxiliary power supply available, this electric circuit is taken from from the AC-
side armature circuit. This must be ordered with option Y03. The armature circuit supply
must not exceed 690 V.
Note
Selecting option Y03 or Y04 can lead to an increase in the outside dimensions.
Other variants are offered as an engineering solution.
4.8.1 230 V AC auxiliary supply
As standard, no additional 230 V AC auxiliary supply is required. If it is required to operate
the SINAMICS DCM, it is transformed inside the cabinet via an auxiliary voltage transformer
from the 400 V AC auxiliary supply. A 230 V AC auxiliary supply is only required for some
options (e.g. L50 or L55). The required customer protection depends on the application;
terminal blocks are in place for connection in the cabinet.
The connection is protected inside the cabinet with a 10 A fuse.
This auxiliary supply is required for option L50 "Cabinet lighting", option L55 "Cabinet
heating" and option A30 "Motor heating".
The connection is made to terminal strip -X4
The terminals 1, 2 are for option L50, terminals 3, 4 are for option L55 and terminals 5, 6 are
for option A30. If several of these options are chosen at the same time, terminals 1-3-5 or 2-
4-6 can also be combined by the customer with wire jumpers.
4.8.2 24 V DC auxiliary supply
As standard, no additional 24 V DC auxiliary supply is required; this supply is only required
for option L07. The required customer protection depends on the application. Modular
terminal block are in place for connection in the cabinet.
The connection is to terminal strip -X2 on terminals 51 and 52.
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Operating Instructions, 04/2015, A5E36161239/RS-AA/001
SINAMICS DCM Cabinet