ADP200 • Quick installation guide - Specifications and connection
9
2.3 Identification of components
The inverter converts the constant frequency and voltage of an existing three-phase network into DC voltage, from
which it obtains a new three-phase network with variable voltage and frequency. With this variable three-phase network
the speed of three-phase synchronous motors can be controlled continuously.
8
6
5
4
3
2
1
7
M
3
1. Mains supply voltage
2. Mains choke
(
see chapter 5.2
)
3. Three-phase rectifier bridge
Converts AC voltage into DC voltage via a three-phase full wave bridge.
4. Intermediate circuit
With pre-load resistor and levelling capacitors DC voltage (U
dc
) =√2 x mains voltage (U
ln
).
5. IGBT inverter bridge
Converts DC voltage into three-phase AC voltage with variable amplitude and frequency.
6. Configurable control section
Cards for controlling and regulating the closed and open-loop power section. Commands, references and reactions
are connected to these.
7. Output voltage
Three-phase AC voltage.
8. Speed feedback encoder
(
see section A.3 of the Appendix
).