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If you are not a qualified electrical professional, do not do grounding work.
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Always ground the drive, the motor and adjoining equipment to the protective earth (PE) bus of the power
supply. This is necessary for personnel safety. Proper grounding also reduces electromagnetic emission
and interference.
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In a multiple-drive installation, connect each drive separately to the protective earth (PE) bus of the power
supply.
•
Make sure that the conductivity of the protective earth (PE) conductors is sufficient. See section in
ACS580-01 Hardware Manual (3AXD50000044794). Obey the local regulations.
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Connect the power cable shields to the protective earth (PE) terminals of the drive.
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Standard IEC/EN & UL 61800-5-1 (section 4.3.5.5.2.) requires that as the normal touch current of the
drive is higher than 3.5 mA AC or 10 mA DC, you must use a fixed protective earth (PE) connection. In
addition, install a second protective earth conductor of the same cross-sectional area as the original
protective earthing conductor, or install a protective earth conductor with a cross-section of at least 7
AWG (10 mm2) Cu, or 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.
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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 power terminals.
Before installation, start-up, and maintenance work on the drive:
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Stop the motor.
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Disconnect the motor from the drive with a safety switch or by other means.
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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.
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Measure that the installation is de-energized.
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Use a multimeter with an impedance of at least 1 Mohm.
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Make sure that the voltage between the drive output terminals (T1/U, T2/V, T3/W) and the grounding
(PE) busbar is close to 0 V.
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Make sure that the voltage between the drive input power terminals (L1, L2, L3) and the grounding (PE)
busbar is close to 0 V.
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Make sure that the voltage between the drive DC terminals (UDC+, UDC-) and the grounding (PE)
terminal is close to 0V.
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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:
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Make sure the motor is not run over the rated speed with dynamic/positive displacement loads.
ACS580-0P GE SUPPLEMENT [3AXD50000875047]
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