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7.1 Measures before commissioning
Second shaft extension
If the second shaft extension is not used:
● The feather key is secured to prevent it from being thrown out, and for balancing type "H"
(standard type), its weight is reduced to 60 % of the original weight.
● The unused shaft extension is covered and protected against accidental contact.
Risk of losing the IP degree of protection as a result of damaged shaft sealing rings
This can result in death, serious injury, or material damage.
• Replace damaged components immediately.
● The rotor can spin without coming into contact with the stator.
● The bearing insulation is not bridged.
● Appropriately configured control and speed monitoring functions ensure that the the
permissible speeds specified on the rating plate cannot be exceeded.
● Any supplementary motor monitoring devices and equipment have been correctly
connected and are fully functional.
Electrical connection
● The grounding and equipotential bonding connections have been made correctly.
● The machine is connected so that it rotates in the direction specified.
● Appropriately configured control and speed monitoring functions ensure that the motor
cannot exceed the permissible speeds specified in the technical data. For this purpose,
compare the data on the rating plate or, if necessary, the system-specific documentation.
● The minimum insulation resistance values are within tolerance.
● Minimum air clearances have been maintained.
● Any supplementary motor monitoring devices and equipment have been correctly
connected and are functioning correctly.
● All brakes and backstops are operating correctly.
● At the monitoring devices, the values for "Warning" and "Shutdown" are set.
Converter operation
● If the design of the motor requires connection to a particular converter type, the rating
plate will contain corresponding additional information.
● The converter is correctly parameterized. The parameterization data is specified on the
rating plate of the machine. Information about the parameters is available in the operating
instructions for the converter.
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WARNING
Operating Instructions, 03/2018, A5E41926185A
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