Operation Principle And Hardware Description; What This Chapter Contains; Operation Principle; Main Circuit - ABB ACS850 Hardware Manual

Operation principle and hardware description

What this chapter contains

This chapter describes the operating principle and construction of the ACS850-04
drive module in short.

Operation principle

Main circuit

The main circuit of the drive module is shown below.
Inverter
NOCHxxxx-xx du/dt filter (see
chapter du/dt and common mode
filtering on page 99)
AC supply
UDC+ UDC- U1 V1 W1
~
=
+ –
=
~
U2 V2 W2
Motor output
CHK-xx mains choke (see chapter
on page 91)
JFI-xx EMC filter (see chapter
93)
ACS850-04
Rectifier
Capacitor bank
Braking chopper (see chapter
page 103)
R- R+
JBR-xx braking resistor (see chapter
braking on page 103)
Operation principle and hardware description
21
Mains chokes
EMC filters on page
Resistor braking on
Resistor