
3-16
Engineering Guide CDA3000
3 Selection of inverter module
3.2.1 Mains side/sys-
tem condition
DIN VDE 0100-300: 1996-01 distinguishes between three different mains
power systems. It is made especially clear how the IT system differs from
the TT and TN systems based on the means of ground connection.
Figure 3.1
IT, TN and TT systems
First letter - Link from the supply system to the ground:
T
Direct connection of a point to the ground
I
Either all active parts isolated from ground or one point connected
to ground via an impedance.
Grounding lead
PEN conductor
Neutral conductor
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 ...