ABB ACS480 Hardware Manual

9. Push the cover to lock into position.
8
9
Capacitors
The DC link of the drive contains several electrolytic capacitors. Operating time, load, and
surrounding air temperature have an effect on the life of the capacitors. Capacitor life can
be extended by decreasing the surrounding air temperature.
Capacitor failure is usually followed by damage to the unit and an input cable fuse failure,
or a fault trip. If you think that any capacitors in the drive have failed, contact ABB.
￭ Reforming the capacitors
The capacitors must be reformed if the drive has not been powered (either in storage or
unused) for a year or more. The manufacturing date is on the type designation label. For
information on reforming the capacitors, see Converter module capacitor reforming
instructions (3BFE64059629 [English]) in the ABB Library (https://library.abb.com/en).
94 Maintenance

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