Engineering Guide CDA3000
3-25
3 Selection of inverter module
DE
EN
1
2
3
4
5
6
7
A
3.2.7 Forming of the
DC-link capaci-
tors
All Voltage inverters have an input current inverter (rectifier) by way of
which the 50/60 Hz AC or three-phase voltage is rectified. The rectified
voltage is stored in the so-called DC-link capacitors. The motor-side
power inverter in the output circuit of the inverter reforms the DC link volt-
age into a new three-phase voltage system, with variable frequency (f)
and voltage (u).
Figure 3.3
Block diagram of a voltage transformer
Mains
Rectifier
DC link
Pulse-controlled inverter (PWR)
PWM
Control and monitoring unit
parallel
serial
6
3-phase
a.c. motor
Содержание CDA3000
Страница 62: ...Engineering Guide CDA3000 2 29 2 Drive definition DE EN 1 2 3 4 5 6 7 A Notes ...
Страница 315: ...A 24 Engineering Guide CDA3000 Appendix A Formula bank Movement by rack Movement by cable reel Movement by spindle ...
Страница 317: ...A 26 Engineering Guide CDA3000 Appendix A Formula bank Indexing table with eccentric loads ...
Страница 336: ...Engineering Guide CDA3000 A 45 DE EN FR 1 2 3 4 5 6 A Appendix B Practical working aids for the project engineer ...