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16 Operation principle and hardware description
Overview diagram of the drive system
The following figure shows an example drive with a diode supply unit and three inverter
units.
8
9
1
Main circuit breaker [Q1]
2
AC fuses
3
Supply module [T01] (including choke and rectifier)
4
Supply module DC fuses
5
Inverter module DC fuses (with or without DC switches)
6
Inverter module [T11]
7
Motor
8
Auxiliary voltage switch [Q21] (option +G344 or +G451)
9
Auxiliary voltage transformer [T21] (option +G344)
4
1
2
3
7
5
6
M
M
3~
3~
5
5
6
M
3~
6
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