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20 Safety instructions
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Grounding
These instructions are for all personnel who are responsible for the grounding of the
drive.
WARNING!
Obey these instructions. If you ignore them, injury or death, or equipment
malfunction can occur, and electromagnetic interference can increase.
If you are not a qualified electrical professional, do not do grounding work.
• Always ground the drive, the motor and adjoining equipment. This is necessary for
the personnel safety.
• Make sure that the conductivity of the protective earth (PE) conductors is sufficient
and that other requirements are met. See the electrical planning instructions of the
drive. Obey the applicable national and local regulations.
• When using shielded cables, make a 360° grounding of the cable shields at the cable
entries to reduce electromagnetic emission and interference.
• In a multiple-drive installation, connect each drive separately to the protective earth
(PE) busbar of the power supply.
Additional instructions for permanent magnet motor drives
￭
Safety in installation, start-up, 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, or damage to the
equipment can occur.
If you are not a qualified electrical professional, do not do installation or
maintenance work.
• Do not do work on the drive when a rotating permanent magnet motor is connected
to it. A rotating permanent magnet motor energizes the drive including its input and
output power terminals.
Before installation, start-up and maintenance work on the drive:
• Stop the drive.
• Disconnect the motor from the drive with a safety switch or by other means.
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