Descriptions of functions
10.28 Connecting units in parallel and in series
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
607
Table 10- 70 6-pulse parallel connection, standard mode
The same as at the master
p51800 Position in the topology 11 (Master) 12 (Slave)
p51802 Minimum number of nodes Number of SINAMICS DCM units
in this topology
Number of SINAMICS DCM units
in this topology
1)
1)
Reduction in rated unit DC current
The same as at the master
Rated value for supply voltage
The same as at the master
p50100 Rated motor current Rated motor current/number of
The same as at the master
p50110 Armature resistance Ra
2)
Actual armature resistance ×
The same as at the master
p50111 Armature inductance La
2)
Actual armature inductance ×
The same as at the master
Motor thermal time constant
Motor thermal time constant in s
The same as at the master
p50140 Motor I
2
t monitoring, response
when starting
Application-specific The same as at the master
2)
The same as at the master
p50357 Threshold for interrupted
Application-specific 100% (tachometer interruption
= 1 at the two outermost units (= at the physical ends of the bus line)
= 0 on all of the other units
The optimization run for current controller and precontrol (p50051 = 23 or 25) sets the correct values for these
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