ABB ACS880-37LC-0390A-7, Hardware Manual, Page: 31 / 242

Overview circuit diagram of the drive
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3~
3
4
5
9
10
2
1
14
12 12
11
12 12
15
6
11 13 13
7
8
R
Auxiliary voltage transformer(s) 1
Auxiliary voltage switch [Q21] 2
*Main switch/disconnector [Q1.1] 3
*AC fuses [F1.x]. If the drive has multiple LCL filters, there are additional AC fuses at the input of
each filter.
4
*Main contactor [Q2] 5
*Some drive types can be ordered with a main circuit breaker (or are equipped with a main circuit breaker as
standard) [Q1]. In that case, the AC fuses are located at the input of each LCL filter.
Charging switch [Q3] and fuses 6
Charging contactor [Q4] 7
Charging resistors [R4.x] 8
LCL filter 9
Supply module(s) [T1.x]. The diagram shows two modules connected in parallel. 10
Common mode filters [R1.x] at the output of each supply module 11
DC fuses at the output of each supply module [F2.x], and at the input of each inverter module [F11.x]. 12
Common mode filters [R11.x] at the input of each inverter module 13
Inverter unit consisting of one or several inverter modules [T11.x] 14
Motor 15
Operation principle and hardware description 31