Replacing Diode, Thyristor And Igbt Modules - Siemens SIMOREG DC-MASTER Operating Instructions Manual

12.2010
Replacing printed circuit boards
Limiter Board
MLFB = 6RY1703-0AC01
Power Interface
MLFB = 6RY1703-0DC01
8.2.2

Replacing diode, thyristor and IGBT modules

The modules are fixed using self-tapping screws. To mount modules, it is absolutely necessary to
use screws with metric thread with the same length as the original screws and locking elements
(washer and spring washer). When screwing modules to busbars and other assemblies, screws
with metric thread with the same length as the original screws and locking elements (washer and
spring washer) must also be used.
Module design
Tightening torque, module: 3,5 Nm
Tightening torque of the power connections: 5 Nm
Siemens AG 6RX1700-0DD74
SIMOREG DC-MASTER Converter Commutation Protector
Tightening torque, module: 6 Nm
Tightening torque of the power connections: 12 Nm
Operating Instructions
Maintenance
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