Modular Cabinet Unit System Sinamics S120 Cabinet Modules; General; Design; General Configuring Process - Siemens SINAMICS G130 Engineering Manual

SINAMICS S120 Cabinet Modules
Engineering Information

Modular Cabinet Unit System SINAMICS S120 Cabinet Modules

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General

Design

SINAMICS S120 Cabinet Modules are compact cabinet elements specially developed to allow simple construction of
multi-motor systems. They have been designed according to the "zone" concept and therefore offer the highest
possible standard of operational reliability. EMC measures have been implemented throughout and the cabinets are
partitioned for the purpose of air-flow guidance and temperature control. Attention has been paid to providing
possible cable routing options and special design concepts are applied consistently to broaden the scope of
application and simplify servicing.
The units feature all the necessary connections and connecting elements. The cabinets are shipped in a ready-to-
connect state or, in the case of multiple transport units, ready for quick assembly.
The properties of S120 Cabinet Modules described in this section are not transferable to adapted cabinets
constructed to meet the requirements of specific applications. The components installed in the Cabinet Modules
cannot be ordered separately.

General configuring process

The starting point for a drive configuring process is provided by the performance requirements of individual machines
in the drive line-up. The definition of the components is based on physical interdependencies and is usually carried-
out as follows:
Step Description of the configuring process
1. Clarify the type of drive and Infeed
• Basic Line Module
• Smart Line Module
•
Active Line Module
2. Define the supplementary conditions and integration into an automation system
3. Define the load, calculate the maximum load torque, select the motor
4. Select the SINAMICS S120 Motor Module
5. Repeat steps 3 and 4 for any further drives
6. Calculate the required DC link power, taking the demand factor into account, and select the SINAMICS S120 Line Module
7. If the DC link power required is calculated to be such that a parallel connection of Infeed Modules is needed to provide the
necessary Infeed power, then the correct Infeed Modules for the parallel connection must also be selected. Only Infeed
Modules with the same output power rating may be connected in parallel. Note derating data!
8. Select the Line Connection Modules based on the assignment table (see section "Line Connection Modules")
9. Determine the line-side power options (main circuit breaker, fuses, line reactors, etc.)
10. Check the precharging of the DC link by calculating the DC link capacitance
11. Select further system components
12. Calculate the required current for the electronics with 24V DC (please see technical data for the Cabinet Modules) as well
as for optional components.
13. Calculate the required current for the components with 230 V AC (please see technical data for the Cabinet Modules).
14. Calculate the required current for the fans with 380 V to 480V AC resp. 500 V to 690 V AC (please see technical data for
the Cabinet Modules)
15. Select the power supply according to the above calculated auxiliary currents at the different voltage levels (external line
supply, option K76, auxiliary power supply modules)
16. Determine the required control performance, select the SINAMICS S120 Control Unit and the Compact Flash Card, define
the component cabling (DRIVE-CLiQ topology)
Select the components for connections.
Select the DRIVE-CLiQ cables, including the DRIVE-CLiQ cables which have to be laid and connected on site. Select the
17.
PROFIBUS cables, if communication is established by means of PROFIBUS and several Control Units (CU320) have to
be connected to one another.
Alternatively selection of order-specific integration engineering (please see catalog)
Sequencing of the components of the drive configuration
18.
Separation of the drive configuration into individual transportation units
19.
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