ABB ACS480 User Manual

14 Reforming the capacitors
3. Make this reforming circuit and connect it to the DC terminals of the converter module.
4. Switch on the AC power supply of the reforming circuit for the time defined in section
Reforming time on page 9.
5. Switch off and disconnect the AC power supply of the reforming circuit.
6. Wait for 5 minutes (10 minutes for wind turbine converters) to let the converter DC
capacitors discharge.
7. Measure that the voltage of the DC terminals of the converter is close to 0 V.
8. Disconnect the reforming circuit from the converter.
Voltage Recommended components
ARC
200 V < U
×
< 240 V SKD 82/16 220 Ohm / 700 W 22 nF / 2000 V
380 V < U
×
< 415 V SKD 82/16 220 Ohm / 700 W 22 nF / 2000 V
380 V < U
×
< 500 V SKD 82/16 470 Ohm / 1200 W 22 nF / 2000 V
525 V < U
×
< 690 V SKD 82/16 680 Ohm / 1700 W 22 nF / 2000 V
R
C
A
U2
V2
W2W1
V1
U1
Disconnect
FREQUENCY
CONVERTER
UDC- UDC+
U
x
U
x
SUPPLY
UNIT
INVERTER
UNIT
DRIVE MODULE
INVERTER
SUPPLY
U
x
U
x

ABB ACS480 Specifications

General

Output Voltage	0 to Input Voltage
Frame Sizes	R1 to R4
Control Method	Scalar control
Communication	Modbus RTU
Optional Communication	PROFINET, EtherNet/IP
STO	Safe torque off (STO) as standard
Built-in Features	EMC filter
Protection Features	Overvoltage, undervoltage, overcurrent, overload, short circuit, overtemperature