ABB ACS580-07 Hardware Manual page 17

• If you have a permanent magnet motor connected to the drive, disconnect the motor
from the drive with a safety switch or by other means.
• Make sure that re-connection is not possible. Lock the disconnectors to open position
and attach a warning notice to them.
• Disconnect any external power sources from the control circuits before you do work
on the control cables.
• After you disconnect the drive, always wait 5 minutes to let the intermediate circuit
capacitors discharge before you continue.
4. Protect any other energized parts in the work location against contact.
5. Take special precautions when close to bare conductors.
6. Measure that the installation is de-energized. If the measurement requires removal or
disassembly of shrouding or other cabinet structures, obey the local laws and regulations
applicable to live working (including – but not limited to – electric shock and arc
protection).
• Use a multimeter with an impedance of at least 1 Mohm.
• Make sure that the voltage between the drive input power terminals and the
grounding (PE) busbar is close to 0 V.
• Make sure that the voltage between the drive DC busbars (+ and -) and the
grounding (PE) busbar is close to 0 V.
Measuring points of frames R6 to R9 are shown below.
PE
L1, L2, L3
Safety instructions 17