Expanding The Sinamics Dcm To Include A Second Cud - Siemens SINAMICS DCM Operating Instructions Manual

Descriptions of functions

10.26 Expanding the SINAMICS DCM to include a second CUD

10.26 Expanding the SINAMICS DCM to include a second CUD
General information
As an option, the SINAMICS DC MASTER can be equipped with a second CUD by inserting
it in the right-hand slot. This option is only available in conjunction with option G00
(advanced CUD in left-hand slot). See also the section titled "Ordering information for
options and accessories".
CAUTION
Installing or removing a module is only permitted when the SINAMICS DC MASTER is in
the voltage-free state.
Properties
The right-hand CUD is used for system-specific extension of the SINAMICS DC MASTER
functions.
It enables the following function extensions:
● Doubling the number of hardware inputs and outputs for applications requiring more
● Additional computing capacity for free function blocks and, above all, for application-
Connection between the left-hand and right-hand CUD:
16 BICO connections can be established in each direction.
This involves using the parallel-connection interface. Function diagrams FP9350, FP9352,
and FP9355 show the settings and BICO interconnection options for the parallel-connection
interface.
The hardware connection for the two CUDs is established inside the unit; there is no need
for an external connection using connector X165 or X166. It is also possible to use the
parallel-connection interface for controlling a power unit-side configuration in which several
SINAMICS DC MASTER units are connected in parallel.
Parameter assignment
The parameters for the right-hand CUD are assigned using the AOP30 or the STARTER
commissioning tool. The Basic Operator Panel BOP20 cannot be used for this purpose.
● Assigning parameters for the right-hand CUD using the AOP30:
● Assigning parameters for the right-hand CUD using STARTER:
The second CUD must be parameterized as an "independent node" for the parallel-
connection interface, meaning that it participates in BICO exchange between multiple CUDs.
444
analog inputs, analog outputs, digital inputs, or digital outputs
specific function diagrams generated using DCC
The AOP30 must be connected to connector X178 (RS485 interface) or X179 (RS232
interface) on the right-hand CUD.
STARTER views the right-hand CUD as a separate PROFIBUS node. Either the unique
bus address must be set using the AOP30, or STARTER must first be connected as the
sole bus node in order to set the unique bus address.
SINAMICS DCM Control Module
Operating Instructions, 06.2010, C98130-A7067-A1-02-7619