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7.1.2
Mechanical and electrical check
• Rotate the rotor to ensure that it does not touch the stator.
• Ensure that the bearing insulation is not bridged/jumpered.
• Using the appropriately designed and adjusted control and speed monitoring functions
ensure that the permissible speeds specified on the rating plate cannot be exceeded.
• Ensure that any supplementary equipment used to monitor the motor is correctly
connected and is functioning.
Electrical connection
• Carefully check the grounding and potential bonding connections.
• Connect the motor corresponding to the specified direction of rotation.
• Using the appropriate open-loop control and speed monitoring functions, carefully ensure
that no higher speeds can be achieved than are permitted and specified in the technical
data. For this purpose, compare the data on the rating plate or, if necessary, the system-
specific documentation.
• Comply with the minimum insulation resistances.
• Comply with the minimum air clearances.
• Correctly connect possibly available motor monitoring devices and equipment - and
carefully ensure that they are functioning correctly.
• Check the correct functioning of the brakes or backstops.
• Set the values for "Alarm" and "Shutdown" at the monitoring devices.
• Carefully ensure that temperature-sensitive parts and components, e.g. cables are not in
contact with the motor enclosure.
1LE7 shaft heights 71 ... 315
Operating Instructions, 04/2022, A5E51689275A-AA
Commissioning
7.1 Measures before commissioning
73
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