
28 Operation principle and hardware description
Overview circuit diagram of the drive
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 (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.
L1/U1
L2/V1
L3/W1
T1/U2
T2/V2
T3/W2
R-
R+
4
2
1
UDC-
UDC+
PE
5
ACS880-04 +P943
3
Summary of Contents for ACS880-07XT Series
Page 1: ...ABB industrial drives Hardware manual ACS880 07XT drives 400 to 1200 kW ...
Page 4: ......
Page 12: ...12 ...
Page 20: ...20 Safety instructions ...
Page 26: ...26 Introduction to the manual ...
Page 54: ...54 Mechanical installation ...
Page 89: ...Electrical installation 89 PE 11 8 4 9 11 ...
Page 94: ...94 Electrical installation ...
Page 112: ...112 Fault tracing ...
Page 123: ...Maintenance 123 5 6 7 ...
Page 124: ...124 Maintenance 8 10 9 ...
Page 126: ...126 Maintenance 6 5 4 ...
Page 127: ...Maintenance 127 9 8 7 ...
Page 128: ...128 Maintenance 12 11 10 ...
Page 149: ...Dimensions 149 Dimension drawing examples Frame 2 R11 R10 with brake chopper ...
Page 150: ...150 Dimensions Frame 2 R11 R10 without brake chopper ...
Page 153: ...Dimensions 153 Location of input terminals ACS880 07XT 12 pulse ...
Page 154: ...154 Dimensions Location of output terminals ACS880 07XT R10 with du dt ...
Page 155: ...Dimensions 155 Location of output terminals ACS880 07XT R10 without du dt ...
Page 156: ...156 Dimensions Location of output terminals ACS880 07XT R11 with du dt ...
Page 157: ...Dimensions 157 Location of output terminals ACS880 07XT R11 without du dt ...
Page 158: ...158 Dimensions Location of PE terminals ACS880 07XT ...
Page 159: ...Dimensions 159 Location of resistor terminals ACS880 07XT R10 ...
Page 160: ...160 Dimensions Location of resistor terminals ACS880 07XT R11 ...
Page 168: ...www abb com drives www abb com drivespartners 3ABD00043579 Rev C EN 2018 01 01 Contact us ...