Descriptions of functions
10.28 Connecting units in parallel and in series
SINAMICS DCM DC Converter
608 Operating Instructions, 12/2018, A5E34763375A
Table 10- 71 6-pulse parallel connection n+m operation
p51799 Operating principle 0 The same as at the
The same as at the
p51800 Position in the topology 11 (Master) 13 (Substitute master) 12 (Slave)
p51802 Minimum number of nodes n The same as at the
The same as at the
p51812 Total number of nodes n+m The same as at the
The same as at the
p51803 n+m mode 1 (only armature)
The same as at the
0
1)
1)
1)
p50082 Field operating mode ≠0 0 (if only armature)
≠0 (if armature + field)
0 (no field)
p50076[..] Reduction in rated unit DC
- The same as at the
The same as at the
p50078[..] Rated value for supply
- The same as at the
The same as at the
p50100 Rated motor current Rated motor
current/number of
The same as at the
master
The same as at the
master
p50110 Armature resistance Ra
2)
Actual armature
resistance × number of
The same as at the
master
The same as at the
master
p50111 Armature inductance La
2)
Actual armature
inductance × number of
The same as at the
master
The same as at the
master
p50114 Motor thermal time
Motor thermal time
The same as at the
The same as at the
p50140 Motor I
2
t monitoring,
Application-specific The same as at the
The same as at the
p50115 to
p50139
Field characteristic - The same as at the
master
(only if n+ m operation for
The same as at the
master
p51591 La reduction factor
2)
- The same as at the
The same as at the
p50357 Threshold for interrupted
tachometer
Application-specific The same as at the
master
100% (tachometer
interruption monitoring
= 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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