SIEMENS
SINAMICS DCM
DC Converter and Control Module
General information
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Siemens D 23.1 · 2014
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■
Function
(continued)
Single-phase connection
For DC Converters up to 125 A and up to 575 V AC, the full
functionality of the devices is available even when supplied
through only two conductors.
This means, that in a retrofit project for example, a converter with
a single-phase connection can be integrated into state-of-the-art
communication concepts (TIA) without requiring any changes to
the existing machine or plant.
The unit is connected to the line supply via terminals 1U1 and
1V1. It is mandatory that a single-phase commutating reactor or
a transformer with 4 %
u
k
is provided, which only supplies the
DC Converter involved.
Commutating reactor and transformer should be selected
according to the rated motor current of the armature circuit.
In this B2 circuit, the line current is equal to the DC current in the
armature circuit. All of the other line-side drive components
should be dimensioned according to this.
Further, due to the higher current ripple when compared to six-
pulse operation, a smoothing reactor must be provided in the DC
circuit. Please contact the motor manufacturer when dimension-
ing the smoothing reactor.
The associated technical specifications of the three-phase
converter connected to a single phase can be found in section
"Technical specifications" under DC Converter. (Compared to
three-phase operation, the rated DC current is derated by a
factor of 0.7.)
Rated output voltage for single-phase connection
Coolant temperature and installation altitude
Current derating
The permissible coolant temperatures and installation altitudes for SINAMICS DC MASTER as well as the associated maximum
permissible load of the DC Converters in continuous operation can be taken from the following table (the load is specified as a %
of the rated DC current).
Voltage derating
The units can be operated up to an installation altitude of 4000
m
above sea level with the specified rated supply voltages. The
line supply voltages may have overvoltage category III with
respect to ground. For installation altitudes above 4000 m, in
some cases, it will be necessary to reduce the supply voltage
or ensure that overvoltage category II is maintained. Detailed
information is provided in the operating instructions.
M
G_D023_XX_00071
1U1
1V1
1W1
Line supply
Rated output voltage for single-phase connection
Two-quadrant operation
Four-quadrant operation
V
V
V
230
180
160
400
320
280
480
385
335
575
460
400
Maximum permissible load of the DC Converter in continuous operation
(the load is specified as a % of the rated DC current)
Installation altitude above sea level (the derating factors for values in between can be determined using linear interpolation.)
Ambient or
coolant
temperature
1000 m
2000 m
3000 m
4000 m
5000 m
Units up to
125 A
Units from
210 A and
higher
Units up to
125 A
Units from
210 A and
higher
Units up to
125 A
Units from
210 A and
higher
Units up to
125 A
Units from
210 A and
higher
Units up to
125 A
Units from
210 A and
higher
30 °C
98 %
96 %
88 %
86 %
78 %
78 %
70 %
35 °C
100 %
93 %
90 %
83 %
80 %
73 %
40 °C
94 %
88 %
84 %
78 %
45 °C
95 %
88 %
83 %
50 °C
94 %
90 %
82 %
78 %
55 °C
88 %
© Siemens AG 2014