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Electrical safety in installation, start-up and maintenance
Electrical safety precautions
These warnings are for all personnel who do work on the drive, motor cable or motor.
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 electrical installation or maintenance work.
Go through these steps before you begin any installation or maintenance work.
1. Clearly identify the work location and equipment.
2. Disconnect all possible voltage sources. Make sure that reconnection is not possible. Lock out and tag
out.
• Open the main disconnector at the power supply of the drive.
• Disconnect any external power sources from the control circuits.
• After you disconnect the drive, always wait for 5 minutes to let the intermediate circuit capacitors
discharge before you continue.
3. Protect any other energized parts in the work location against contact.
4. Take special precautions when close to bare conductors.
5. 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 input power terminals (L1, L2, L3) and the grounding
terminal (PE) is zero.
• Make sure that the voltage between the drive output terminals (T1/U, T2/V, T3/W) and the grounding
terminal (PE) is zero.
• Make sure that the drive DC voltage is zero.
Frames R7...R11: Make sure that the voltage between the drive DC terminals (UDC+ and UDC-) is zero
and between the drive DC terminals (UDC+ and UDC-) and the grounding (PE) terminal is zero.
6. Install temporary grounding as required by the local regulations.
7. Ask from the person in control of the electrical installation work for a permit to work.
ACS880-0P SENSIA CE SUPPLEMENT [3AXD50000905423]
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