Siemens SINAMICS DCM Compact User Manual

12-pulse series connection
4.3 Commissioning
12-pulse applications
Compact User Manual, 09/2015, A5E34871844H
41
4.3.3
Optimization runs
The optimization runs should only be carried out on the master converter. The slave
converters must be connected and ready for operation at this point.
The optimization run for the armature current closed-loop control (p50051 = 25) sets the
following parameters on the master converter:
Table 4- 4 For 12-pulse series connection of SINAMICS DCM converters
Parameter
Master
Slave or parallel devices
p50110 Armature resistance Ra Actual armature resistance × half the number
of SINAMICS DCMs
The same as on the master
p50111 Armature inductance
La
Actual armature inductance × half the number
of SINAMICS DCMs
The same as on the master
p51591
La reduction factor
-
The same as on the master
p50155 Kp armature current
controller
- The same as on the master
p50156 Tn armature current
controller
- The same as on the master
The parameter values from the above table must be transferred manually from the master
converter to the slave converter.
The additional optimization runs are then carried out, starting with the optimization run for the
speed control at the master converter.
Table 4- 5 For 12-pulse series connection of SINAMICS DCM converters with an uncontrolled rectifier
Parameter
Master
Parallel units
p50110 Armature resistance Ra Actual armature resistance × number of paral-
lel units
The same as on the master
p50111 Armature inductance
La
Actual armature inductance × number of con-
verters in parallel
The same as on the master
p51591
La reduction factor
-
The same as on the master
p50155 Kp armature current
controller
- The same as on the master
p50156 Tn armature current
controller
- The same as on the master
The parameter values from the above table must be transferred manually from the master
converter to the parallel slave converters.
The additional optimization runs are then carried out, starting with the optimization run for the
speed control at the master converter.

Siemens SINAMICS DCM Specifications

General

Brand	Siemens
Model	SINAMICS DCM
Category	Media Converter
Language	English