Cable Lengths - Siemens SIMOREG DC-MASTER Operating Instructions Manual

12.2010
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
40
35
l_min [m]
l_max [m]
30
25
20
15
10
5
0
100 200
1U1 1V1 1W1
SIMOREG DC-MASTER
/ SINAMICS DCM
1C1 1D1
Siemens AG 6RX1700-0DD74
SIMOREG DC-MASTER Converter Commutation Protector
300 400
Charging voltage according to U578 in V
l <1>
1U1 1V1 1W1
SIMOREG CCP
1C1 1D1
l <1>
Operating Instructions
500 600
<1> l = cable length
Cable length to connect the AC
connections .... l
Cable length to connect the DC
connections .... l
Connecting
700 800
UVW
CD
ENGLISH
900
27