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• install a device which automatically disconnects the supply if the protective earth conductor breaks.
Additional instructions for permanent magnet motor drives
Safety in installation, start-up and maintenance
These are additional warnings concerning permanent magnet motor drives. The other safety instructions
in this chapter are also valid.
WARNING! Obey these instructions. If you ignore them, injury or death and damage to the equipment
can occur.
• Do not work on a drive when a rotating permanent magnet motor is connected to it. A rotating permanent
magnet motor energizes the drive including its input power terminals. Before installation, start-up and
maintenance work on the drive:
• Stop the motor.
• Disconnect the motor from the drive with a safety switch or by other means.
• If you cannot disconnect the motor, make sure that the motor cannot rotate during work. Make sure that
no other system, like hydraulic crawling drives, can rotate the motor directly or through any mechanical
connection like felt, nip, rope, etc.
• Measure that the installation is de-energized.
• Before and after measuring the installation, verify the operation of the voltage tester on a known voltage
source.
• Make sure that the voltage between the drive output terminals (T1/U, T2/V, T3/W) and the grounding (PE)
busbar is zero. • Make sure that the voltage between the drive input power terminals (L1, L2, L3) and the
grounding (PE) busbar is zero.
• Make sure that the voltage between the drive DC terminals (UDC+, UDC-) is zero and between the drive
DC terminals (UDC+ and UDC-) and the grounding (PE) terminal is zero if applicable.
• Install temporary grounding to the drive output terminals (T1/U, T2/V, T3/W). Connect the output terminals
together as well as to the PE.
Start-up and operation:
• Make sure that the motor cannot be run into overspeed, e.g. driven by the load. Motor overspeed causes
overvoltage that can damage or destroy the capacitors in the intermediate circuit of the drive
Cybersecurity disclaimer
This product is designed to be connected to and to communicate information and data via a network
interface. It is Customer's sole responsibility to provide and continuously ensure a secure connection
between the product and Customer network or any other network (as the case may be). Customer shall
establish and maintain any appropriate measures (such as but not limited to the installation of firewalls,
application of authentication measures, encryption of data, installation of anti-virus programs, etc.) to protect
the product, the network, its system and the interface against any kind of security breaches, unauthorized
access, interference, intrusion, leakage and/or theft of data or information. ABB and its affiliates are not liable
for damages and/or losses related to such security breaches, any unauthorized access, interference,
intrusion, leakage and/or theft of data or information.
ACS880-0P SENSIA CE SUPPLEMENT [3AXD50000905423]
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