18 Safety instructions
5. Measure that the installation is de-energized.
• Use only instrumentation (e.g., meters, oscilloscopes, etc.) intended for high
voltage measurements.
6. Always discharge equipment and verify that it is neither electrically alive nor thermally
hot.
7. Always install temporary grounding as required by the local regulations.
8. Ask for a permit to work from the person in control of the electrical installation work.
Additional instructions and notes
• Do not connect the drive to a voltage higher than what is on the rating plate.
• The motor cable terminals of the drive are at a dangerous voltage when the input
power is on, regardless of whether the motor is running or not.
• External wiring can supply dangerous voltages to the terminals of relay outputs.
Grounding
• Always ground the drive, the motor and adjoining equipment according to the
maintenance instructions in this manual. Assure that the drive is grounded on both
sides, i.e. on supply and motor side. This is necessary for the personnel safety. Proper
grounding also reduces electromagnetic emission and interference.
• Make sure that the cross-section of the grounding conductors is sufficient. See the
ACS580MV Engineering Guideline. Obey the local regulations.
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