Table of Contents
Advertisement
28 Operation principle and hardware description
Overview circuit diagram of the drive
ACS880-04 +P943
UDC+
UDC-
PE
L1/U1
L2/V1
L3/W1
1
1
AC choke
2
Rectifier. Converts alternating current and voltage to direct current and voltage.
3
DC link. DC circuit between rectifier and inverter
4
Inverter. Converts direct current and voltage to alternating current and voltage.
5
Brake chopper (option +D150). Conducts the surplus energy from the intermediate circuit of the
drive to the brake resistor when necessary. The chopper operates when the DC link voltage
exceeds a certain maximum limit. The voltage rise is typically caused by deceleration (braking) of a
high inertia motor.
5
3
2
R+
R-
T1/U2
T2/V2
T3/W2
4
Advertisement
Table of Contents
