12.2010
Connecting
Siemens AG 6RX1700-0DD74
ENGLISH
27
SIMOREG DC-MASTER Converter Commutation Protector Operating Instructions
6.1 Cable
lengths
Lengths of the connecting cables between connections
1U1, 1V1, 1W1, 1C1, 1D1 of the basic converter unit and the SIMOREG CCP
The connecting cables between the basic converter unit and the SIMOREG CCP also serve as
commutation inductance for quenching operations and must therefore have a defined length.
The cable length is valid for each cable for 1U1, 1V1, 1W1, 1C1, 1D1 and can be taken from the
following diagram. The actual cable length used must lie between l_min and l_max (also refer to
the example below).
Note
The correct values for parameters U578 or p51578 must be available before determining the cable
length.
Length (l) of the connecting cable between the basic unit and SIMOREG CCP
Cable length (l) in m
0
5
10
15
20
25
30
35
40
100
200
300
400
500
600
700
800
900
l_min [m]
l_max [m]
Charging voltage according to U578 in V
SIMOREG DC-MASTER
/ SINAMICS DCM
SIMOREG CCP
1U1 1V1 1W1
1U1 1V1 1W1
1C1 1D1
1C1 1D1
l <1>
l <1>
<1> l = cable length
Cable length to connect the AC
connections .... l
UVW
Cable length to connect the DC
connections .... l
CD
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