12-pulse series connection
4.3 Commissioning
12-pulse applications
Compact User Manual, 09/2015, A5E34871844H
39
Table 4- 3 For 12-pulse series connection of SINAMICS DCM converters with an uncontrolled rectifier:
p51798 Voltage on the uncontrolled rectifier Application-specific (50 % -
The same as on the master
p51799 Mode of operation 0 0
p51800 Position in the topology 45 (master for diode rectifi-
43
p51807 Telegram failure time 0.0 s
0.1 s if devices connected
in parallel are available
The same as at the master
The same as at the master
The same as at the master
The same as at the master
≠ 0 (application-specific)
p50076[..] Reduction in the rated unit DC cur-
Application-specific The same as on the master
Rated value for supply voltage
The same as on the master
p50100 Rated motor current Rated motor cur-
rent/number of SINAMICS
The same as on the master
Enable torque direction change
The same as at the master
1)
If the number of power units that are ready to operate for n+m operation is less than the value set in p51802, then fault
message F60044 is output, followed by shutdown (OFF2).
2)
= 1 at the two outermost units (= at the physical ends of the bus line)
= 0 on all of the other units
3)
Note: In conjunction with r50072[..], ensure that p50076[..] is correctly set, as described in the List Manual under
p50076[..].
4)
For 4Q units, it is imperative that the torque direction change is inhibited:
0 = M0 or MII; 1 = M0 or MI
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