Tested Circuit Breakers; Protecting The Drive Against Thermal Overload; Protecting The Input Power Cable Against Thermal Overload; Protecting The Drive Against Ground Faults - ABB ACS580-04 Hardware Manual

Note: Circuit breakers must not be used without fuses in UL installations.

Tested circuit breakers

You can use the circuit breakers listed in the technical data. Other circuit breakers can
be used with the drive if they provide the same electrical characteristics. ABB does
not assume any liability whatsoever for the correct function and protection with circuit
breakers not listed. Furthermore, if the recommendations given by ABB are not obeyed,
the drive can experience problems that the warranty does not cover.

Protecting the drive against thermal overload

￭
The drive has overload protection as standard.

Protecting the input power cable against thermal overload

￭
The drive has overload protection as standard. If the sizing of the input power cable
is correct, the drive overload protection protects also the cable against overload. In
case of parallel input power cables, it may be necessary to protect each cable
separately. Obey the local regulations.

Protecting the drive against ground faults

The drive is equipped with an internal ground fault protective function to protect the
unit against ground faults in the motor and motor cable. This function is not a
personnel safety or a fire protection feature. See the firmware manual for more
information.

Residual current device compatibility

￭
The drive is suitable for use with residual current devices of Type B.
Note: As standard, the drive contains capacitors connected between the main circuit
and the frame. These capacitors and long motor cables increase the ground leakage
current and may cause nuisance faults in residual current devices.

Implementing the emergency stop function

For safety reasons, install the emergency stop devices at each operator control station
and at other operating stations where the emergency stop may be needed. Implement
the emergency stop according to relevant standards.
Note: You can use the Safe torque off function of the drive to implement the Emergency
stop function.

Implementing the Safe torque off function

See The Safe torque off function (page

Implementing the power loss ride-through function

If the incoming supply voltage is cut off, the drive will continue to operate by utilizing
the kinetic energy of the rotating motor. The drive will be fully operational as long as
the motor rotates and generates energy to the drive.
Guidelines for planning the electrical installation 93
221).