Electrical connection
6
Comply with the following when carrying out any work on the machine:
• Comply with the general safety instructions (Page15).
• Comply with the applicable national and sector-specic regulations.
• When using the motor within the European Union, comply with the specications laid down
in EN50110‑1 regarding safe operation of electrical equipment.
Hazardous voltages on electrical connections
Dangerous voltages can arise on electric motors. Death, injury or material damage can occur.
Observe the following safety information before connecting up the motor:
• Only qualied personnel should carry out work.
• Carefully follow the 5 safety rules.
• Disconnect the machine from the power supply and take measures to prevent it being
reconnected. This also applies to auxiliary circuits.
• Check that the machine really is in a no-voltage condition.
• Ensure that there is a safe and reliable protective conductor connection before starting any
work.
• If the incoming power supply system displays any deviations from the rated values in terms
of voltage, frequency, curve form or symmetry, such deviations will increase the temperature
and inuence electromagnetic compatibility.
• Operating the machine on a line supply system with a non-grounded neutral point is only
permitted over short time intervals that occur rarely, e.g. the time leading to a fault being
eliminated (ground fault of a cable, IEC/EN60034-1).
Note
Service Center
If you require support when electrically connecting up the machine, contact the Service Center
(Page12).
1MB..1/2/3/4 - shaft heights 63 ... 355
Operating Instructions, 11/2023, A5E52779900A 77
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