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7.3
Measures before start-up
NOTICE
Damage to the machine
In order to avoid material damage, check the following points before commissioning the motor:
Using appropriate measures, check whether the correct direction of rotation of the motor has been set by the customer,
•
e.g. by decoupling from the driven load.
Ensure that temperature-sensitive parts (cables, etc.) are not in contact with the machine enclosure.
•
Ensure that the condensation drain holes are always located at the lowest part of the motor.
•
NOTICE
Damage caused by insufficient cooling
Effective cooling is no longer possible if air guidance of the machine is not provided as intended. This can damage the
machine.
Before commissioning, attach the covers to guarantee the intended air guidance.
•
Measures
Once the system has been correctly installed, you should check the following prior to commissioning:
● Ensure that the machine has been correctly installed and aligned.
● Connect the machine corresponding to the specified direction of rotation.
● Ensure that the operating conditions match the data specified on the rating plate.
● Lubricate the bearings, depending on the version. Ensure that machines with rolling bearings, which have been stored
for longer than 12 months, are relubricated.
Also observe the notes in Chapter Preparation for use (Page 6).
● Ensure that any optional supplementary machine monitoring equipment has been connected correctly and is functioning
as it should.
● For versions with bearing thermometers, check the bearing temperatures when the machine starts to run for the first
time. Set the values for alarm and shutdown at the monitoring device. Also observe the notes in Chapter Setting values
for monitoring the bearing temperature (Page 22).
● Corresponding to the control and speed monitoring functions implemented, ensure that the machine cannot exceed the
permissible speeds specified on the rating plate.
● Ensure the correct setting conditions of the drive output elements depending on the type (e.g. alignment and balancing of
couplings, belt forces in the case of a belt drive, tooth forces and tooth flank backlash/play in the case of gear wheel
output, radial and axial clearance in the case of coupled shafts).
● Comply with the minimum insulation resistances and minimum air clearances.
● Ensure correct grounding and potential bonding connection of the protective conductor.
● Tighten all mounting bolts, connection elements and electrical connections to the specified torques.
● Remove any lifting eyes that were screwed after installation – or secure them to prevent them becoming loose.
● Rotate the rotor to ensure that it does not touch the stator.
● Implement all touch protection measures for both moving and live parts.
● Ensure that free shaft extensions cannot be touched, e.g. by attaching covers.
● Secure any featherkeys so that they cannot be flung out.
● Ensure that the optional external fan is ready for operation and connected so that it rotates in the specified direction.
● Ensure that the cooling airflow is not obstructed or diminished in any way.
● If an optional brake is being used, ensure that it is functioning perfectly.
● Comply with the specified mechanical limit speed n
If the design of the machine requires the converter to be assigned in a particular way, the relevant information will be
provided on the rating plate or an additional label.
Note
It may be necessary to perform additional checks and tests in accordance with the specific situation on site.
1LE7
A5E36065207, 04/2018
, and ensure that it is not exceeded.
max
23
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