Siemens SINAMICS DCM Operating Instructions Manual page 465

Note
● The phase sequence at the master and the slave must be the same.
Parameter assignment
The following parameters should be specifically set for operation with this converter
topology:
Table 10- 25 Parameter assignment, 6-pulse series connection
Parameter
p51799 Operating principle
p51800 Position in the topology
p51801 Number of send data
p51802 Minimum number of nodes
p51803 n+m mode
p51804[..] Transmit data
p51805 Bus terminator
p51806 Station address
p51807 Telegram failure time
p50082 Field operating mode
p50076[..] Reduction in rated unit DC current
p50078[..] Rated value for supply voltage
p50100 Rated motor current
p50110 Armature resistance Ra
p50111 Armature inductance La
p51591 La reduction factor
= 1 at the two outermost units (= at the physical ends of the bus line)
1)
= 0 on all of the other units
The optimization run for current controller and precontrol (p50051 = 25) sets the correct values for these parameters.
2)
SINAMICS DCM DC Converter
Operating Instructions, 1.2012, C98130-A7066-A1-05-7619
Master
0, 31 or 32
31 (Master)
Any
Number of SINAMICS DCM units
in this topology
0
Any
0 or 1
1)
Unique address
0.1 s
≠ 0
-
-
-
-
2)
-
2)
-
2)
Descriptions of functions
10.25 Connecting units in parallel and in series
Slave or parallel units
The same as at the master
32 (slave)
33 (parallel to the master)
34 (parallel to the slave)
Any
Number of SINAMICS DCM units
in this topology
0
Any
0 or 1
1)
Unique address
0.1 s
0 (no field)
The same as at the master
The same as at the master
The same as at the master
The same as at the master
The same as at the master
The same as at the master
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