Description Of Options For Cabinet Units; Option G33 (Cbe20 Communication Board) - Siemens SINAMICS G130 Engineering Manual

Description of Options
Engineering Information

9 Description of Options for Cabinet Units

Brief descriptions of all options available for the converter cabinet units SINAMICS G150, SINAMICS S120 Cabinet
Modules and SINAMICS S150 can be found in Catalogs D11 and D21.3. This chapter will therefore discuss in detail
just a few selected options which require more explanation than provided by the brief descriptions in the catalogs.
9.1

Option G33 (CBE20 Communication Board)

These option is available for SINAMICS G150, SINAMICS S120 Cabinet Modules and SINAMICS S150.
The CBE20 Communication Board is an interface module which allows communication via PROFINET-IO.
It is required in order to connect a CU320-2 DP Control Unit (PROFIBUS) to a PROFINET-IO network. The CBE20
Communication Board is designed for insertion in the option slot on the CU320-2 Control Unit and allows the
SINAMICS units to be linked into a PROFINET IO network via the CU320-2 Control Unit. The CBE20 supports real-
time classes PROFINET IO Realtime (RT) and PROFINET IO Isochronous Realtime (IRT). When the CBE20
Communication Board is installed, a SINAMICS converter can operate as a PROFINET IO device.
CBE20 Communication Board Ethernet
The CBE20 Communication Board is also required to enable communication between different Control Units via the
SINAMICS Link. This link permits CU320-2 Control Units to exchange data without intervention of a higher-level
control system. This applies regardless of whether the Control Units are CU320-2 DP (PROFIBUS) or CU320-2 PN
(PROFINET) devices. Nodes other than the SINAMICS CU320-2 Control Units and the CUD Control Units of the
SINAMICS DCM cannot be linked into this communication network. Potential applications for the SINAMICS Link are:
·
Torque distribution with multiple drive systems
·
Setpoint cascading with multiple drive systems
·
Load distribution on drives coupled by material
·
Master-slave function for Active Infeeds
·
Links between SINAMICS G or SINAMICS S with CU320-2 and SINAMICS DCM with CUD
Bus cycle times of 500 μs, 1000 μs or 2000 μs can be set for communication via SINAMICS Link. The current
controller clock cycle must be selected such that the bus cycle time setting is a whole multiple of the current controller
clock cycle. This condition is fulfilled with current controller clock cycles 125 μs, 250 μs and 500 μs, although the
125 μs setting is permissible only for SINAMICS S units (but not for SINAMICS G). SINAMICS Link transmission
times of 3 ms can be achieved with a current controller clock cycle of 500 μs and a bus cycle time of 2000 μs (2 ms).
It is not possible to use the SINAMICS Link in combination with an isochronous PROFIBUS communication network.
Since the CBE20 Communication Board is plugged into the option slot on the CU320-2 Control Unit, option G33 for
SINAMICS S120 Cabinet Modules must always be ordered in combination with option K90 / CU320-2 DP Control
Unit or K95 / CU320-2 PN Control Unit.
Further information can be found in function manual "SINAMICS S120 Drive Functions".
SINAMICS Engineering Manual – November 2015
494/528
Ó Siemens AG