Division Options - Siemens SINAMICS DCM Operating Instructions Manual

6.5

Division options

The SINAMICS DCM Control Module consists of two plates.
Modules in the front plate:
● Power interface for the Control Module
● Control Unit (CUD)
● BOP20 Operator Panel
● Second CUD (optional)
● Communication Board(s) CBE20 (optional)
Modules in the rear plate:
● Fuse monitoring
● Voltage measurement
● Firing pulse transformer module
The two plates can be mounted at a distance from each other in the system, if required.
The firing pulse transformer module can be physically divided. This means parts of it can be
mounted outside the device itself in the area around the power unit.
Some examples are shown below:
Note
The SINAMICS DCM Control Module is supplied with front and rear plates mounted one on
top of the other. The correct cables (connectors X21A, X22A, XS20, XS21, and X102) for
this mounting type are already in place.
Refer to Chapter "Ordering information for options and accessories (Page 26)" for cable
ordering information if plates are being mounted in accordance with the examples below.
Note
Firing pulse cables (X11...X16, X21...X26)
The firing pulse cables should not be shielded.
If shielding is required, the shield is not connected to ground, but is connected to the
auxiliary cathode of the particular thyristor. This shield must be adequately insulated with
respect to its environment as it is at the full line supply voltage including the hole storage
effect peaks.
Note
Restriction regarding dismantling in conjunction with functional safety
In conjunction with the use of functional safety, the extent to which the Control Module can
be dismantled is restricted:
• It is permissible to mount both plates of the Control Module separately.
• The fuse monitoring and the voltage sensing may be removed and mounted outside the
device.
• It is not permissible that the firing pulse transformer module is removed.
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A
Connecting
6.5 Division options
83