Siemens SINAMICS SL150 6SL38655UM427AA02, Руководство по эксплуатации

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Figure 3-3 Schematic diagram of the thyristor module cooling system
3.3.2.3 AVT combination module
The AVT combination module (Actual Value Transmission) processes signals for sensing the
actual current and voltage values. The AVT combination module converts analog signals into
digital signals. Then the module transfers the signals to the Power Stack Adapter (PSA). The
signals are transferred to the PSA via fiber-optic cables.
Figure 3-4 AVT combination module
See also
Voltage actual value sensing (Page 31)
3.3.2.4 Power Stack Adapter
Figure 3-5 Example: Power Stack Adapter
The power stack adapter (PSA) acts as an interface between the power unit and the open-loop/
closed-loop controller. The Power Stack Adapter is also where the power unit is electrically
isolated from the open-loop/closed-loop controller. The DRIVE-CLiQ serial communication
interface ensures the exchange of data between the Power Stack Adapter and Control Unit
(CU).
In the Power Stack Adapter, the switching information predefined by the Control Unit is
translated into firing pulses (long pulses). The firing pulses are converted to optical signals and
Description
3.3 Power unit
SINAMICS SL150 6SL38655UM427AA02
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Operating Instructions Rev.201910281507 EXAMPLE