Siemens SINAMICS DCM Compact User Manual page 39

Table 4- 3 For 12-pulse series connection of SINAMICS DCM converters with an uncontrolled rectifier:
Parameter
p51798 Voltage on the uncontrolled rectifier
p51799 Mode of operation
p51800 Position in the topology
p51807 Telegram failure time
p51801 Amount of send data
p51802 Number of power units
p51803 n+m mode
p51804[..] Send data
p51805 Bus terminator
p51806 Station address
p51807 Telegram failure time
p50082 Field operating mode
p50076[..] Reduction in the rated unit DC cur-
rent
3)
p50078[..] Rated value for supply voltage
p50100 Rated motor current
p50165 Enable torque direction change
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
12-pulse applications
Compact User Manual, 09/2015, A5E34871844H
Master
Application-specific (50 % -
100 %)
0
45 (master for diode rectifi-
er)
0.0 s
0.1 s if devices connected
in parallel are available
0,4,8,12,16
≥ 2
1)
0 or 1
Application-specific
0 or 1
2)
Unique address (1..16)
Recommended, 0.1 s
≠ 0 (application-specific)
Application-specific
Application-specific
Rated motor cur-
rent/number of SINAMICS
DCMs
0 or 1
4)
12-pulse series connection
4.3 Commissioning
Parallel units
The same as on the master
0
43
0.1 s
The same as at the master
≥ 2
The same as at the master
The same as at the master
0 or 1
2)
The same as at the master
Recommended, 0.1 s
0 (no field)
The same as on the master
The same as on the master
The same as on the master
The same as at the master
39