Siemens SINAMICS DCM Operating Instructions Manual page 96

Connecting
6.5 Division options
For information: Circuit diagram, SITOR set (4Q) before being equipped with SINAMICS
DCM Control Module
SITOR sets 6QG12 in an anti-parallel connection of two three-phase current bridge circuits [(B6)A(B6)C] with a
transformer module for measuring actual current values (if SITOR sets 6QG12 are being used without a transformer
module for measuring actual current values, there is no need for an A7 module)
Figure 6-25 SITOR 4Q before modification
94
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A