Overview Circuit Diagram Of The Drive - ABB ACS880-37 Hardware Manual

Overview circuit diagram of the drive

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1 Auxiliary voltage transformer(s)
2 Auxiliary voltage switch [Q21].
Frame 1×R8i + 1×R8i has fuse disconnectors [F20.x] in place of an auxiliary voltage switch. The
auxiliary voltage is switched by the main switch/disconnector.
3 *Main switch/disconnector [Q1.1]
4 *AC fuses [F1.x]. If the drive has multiple LCL filters, there are additional AC fuses at the input of
each filter.
5 *Main contactor [Q2]
*With drive types ACS880-37-1210A-3, -1430A-3, -1530A-5, -1450-7 and -1680-7, these items can be
replaced by an air circuit breaker [Q1] by selecting option +F255. Larger drive types have an air circuit
breaker as standard equipment. Drives with an air circuit breaker have AC fuses only at the input of each
LCL filter.
6 Charging switch fuse [Q3]
7 Charging contactor [Q4]
8 Charging resistors [R4.x]
9 LCL filter [R3.x]
10 Supply module [T1.x]
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]. Frame 1×R8i + 1×R8i drives do not have DC fuses.
13 Common mode filters [R11.x] at the input of each inverter module (except frame 1×R8i + 1×R8i)
14 Inverter unit consisting of one or several inverter modules [T11.x]
15 Motor
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Operation principle and hardware description 33
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