Overview Circuit Diagram Of The Drive - ABB ACS880-37LC-0390A-7 Hardware Manual

Overview circuit diagram of the drive

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