Siemens SINAMICS Series, Руководство по эксплуатации

Страница: 609 / 758

Descriptions of functions
10.28 Connecting units in parallel and in series
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
607
Parameter assignment
Table 10- 70 6-pulse parallel connection, standard mode
Parameter Master Slave or parallel units
p51799 Operating principle 0 The same as at the master
p51800 Position in the topology 11 (Master) 12 (Slave)
p51801 Number of send data Any Any
p51802 Minimum number of nodes Number of SINAMICS DCM units
in this topology
Number of SINAMICS DCM units
in this topology
p51803 n+m mode 0 0
p51804[..] Transmit data Any Any
p51805 Bus terminator 0 or 1
1)
0 or 1
1)
p51806 Station address Unique address Unique address
p51807 Telegram failure time 0.1 s 0.1 s
p50082 Field operating mode ≠ 0 0 (no field)
p50076[..] Reduction in rated unit DC current - The same as at the master
p50078[..] Rated value for supply voltage - The same as at the master
p50100 Rated motor current Rated motor current/number of
SINAMICS DCM
The same as at the master
p50110 Armature resistance Ra
2)
Actual armature resistance ×
number of SINAMICS DCM
The same as at the master
p50111 Armature inductance La 2) Actual armature inductance ×
number of SINAMICS DCM
The same as at the master
p50114 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
p51591 La reduction factor
2)
- The same as at the master
p50357 Threshold for interrupted
tachometer
Application-specific 100% (tachometer interruption
monitoring not active)
1)
= 1 at the two outermost units (= at the physical ends of the bus line)
= 0 on all of the other units
2)
The optimization run for current controller and precontrol (p50051 = 23 or 25) sets the correct values for these
parameters.