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Overview diagram of the drive
This diagram shows a simplified diagram of a drive with IGBT supply unit (frame R7i)
and inverter unit.
3
2
4
5
1
1.
Auxiliary voltage transformer ([T21], option +G344)
2.
Auxiliary voltage switch [Q21]
3.
Main switch-disconnector ([Q1], option +F253) (standard, always with +F250)
4.
AC fuses [F1]
5.
Main contactor ([Q2], option +F250) (standard, always with +F253)
6.
Charging circuit
7.
LCL filter [R03]
8.
IGBT supply module [T01]
9.
Common mode filter [R1]
10.
DC fuses [F2]
11.
Inverter modules [T11]
12.
Motor(s)
3~
10
6
Operation principle and hardware description 17
10
10
9
9
8
11
7
M
12
3
10
9
9
11
11
M
M
3
3
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