ABB ACS580-01 drives, Hardware Manual

Page: 67 / 226

Planning the electrical installation 67
temperature indication given by motor temperature sensors. The user can tune the
thermal model further by feeding in additional motor and load data.
The most common temperature sensors are:
• motor sizes IEC180…225: thermal switch, eg, Klixon
• motor sizes IEC200…250 and larger: PTC or Pt100.
For more information, see ACS580 firmware manual (3AXD50000016097 [English]).
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 is not a personnel safety
or a fire protection feature. The ground fault protective function can be reduced with a
parameter 31.20 Earth fault.

Residual current device compatibility
The drive is suitable to be used with residual current devices of Type B.
Note: The EMC filter of the drive includes capacitors connected between the main
circuit and the frame. These capacitors and long motor cables increase the ground
leakage current and may cause fault current circuit breakers to function.
Implementing the Emergency stop function
For safety reasons, install the emergency stop devices at each operator control
station and at other operating stations where emergency stop may be needed.
Design the emergency stop according to relevant standards.
Note: Pressing the stop key on the control panel of the drive does not generate
an emergency stop of the motor or separate the drive from dangerous potential.
Implementing the Safe torque off function
See chapter Safe torque off function on page 197 .
Implementing the undervoltage control (power-loss ride-
through)
See ACS580 firmware manual (3AXD50000016097 [English]).
Using a safety switch between the drive and the motor
It is recommended to install a safety switch between the permanent magnet motor
and the drive output. This is needed to isolate the motor from the drive during
maintenance work on the drive.