Liquid-Cooled Sinamics S120 Cabinet Modules; General Configuring Process - Siemens SINAMICS G130 Engineering Manual

SINAMICS S120 Cabinet Modules
Engineering Information

7.3 Liquid-cooled SINAMICS S120 Cabinet Modules

7.3.1 General configuring process

The first step in engineering a drive system is to determine the performance required of the individual motors in the
drive line-up. The components are selected according to physical interdependencies and the selection process is
usually carried out in the following sequence of steps:
Step Description of the engineering sequence for liquid-cooled S120 Cabinet Modules
1. Clarify the type of drive and Infeed, and the line supply voltage
· Basic Line Connection Module
· Active Line Connection Module
2. Specify the supplementary conditions and integration into the 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 (axes)
6.
Calculate the required DC link power, taking the simultaneity factor into account, and select the SINAMICS S120 Line
Module and the DC busbar.
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, then the correct Infeed Modules for the parallel connection must be selected. Only Infeed Modules
with the same output power rating may be connected in parallel.
8. Determine the line-side power options (main circuit breaker, fuses, line reactors, etc.)
9. Check the DC link precharging by calculating the DC link capacitance
10. Select further system components
11. Calculate the required coolant volumetric flow rate and the heat losses to be dissipated by the coolant
12. Select the required Heat Exchanger Module
13.
Calculate the power requirement of the 24 V DC electronics power supply (see technical data of Cabinet Modules) and
optional components
14. Calculate the power requirement of the 230 V AC components (see technical data of Cabinet Modules)
15. Calculate the power requirement of pump and controller in the Heat Exchanger Module 380 to 415 V or 660 to 690 V
3AC (see technical data of the Heat Exchanger Module)
16. Determine the power supplies for auxiliary power requirements (external or option K76 or Auxiliary Power Supply Module
(available soon))
17.
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 electrical connection components:
Select the DRIVE-CLiQ cables including those which need to be installed and connected by the customer. Select the
18.
PROFIBUS cables if the Control Units are to communicate via PROFIBUS and multiple CU320-2 DP Control Units are to
be connected to one another. The same applies to CU320-2 PN Control Units.
Alternatively, select order-specific integration engineering (see catalog)
19. Determine the sequence of components in the drive line-up
20. Split the drive line-up into transport units
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