Commissioning
4.4 Measures to be performed prior to start-up
A5E01083943A AB
Siemens AG Operating Instructions 2.02 1FW4
63
● any supplementary devices for monitoring the motors have been correctly connected and
are functioning correctly.
● if bearing thermometers are fitted, the bearing temperatures are checked during the initial
run of the motor and the values for warning and switch-off are set on the monitoring
device.
● appropriately configured control and speed monitoring functions ensure that the motor
cannot exceed the permissible speeds specified on the rating plate.
● the power output elements have the correct parameters for their type
(e.g., alignment and balancing of couplings, belt tension of a belt drive, backlash- and
crest clearance of a gear PTO drive, radial clearance).
● the minimum insulation resistance values and the minimum air gap values are satisfied.
● that the grounding and equipotential bonding connections have been correctly made.
● the bearing housing insulation is not bridged on the non-drive end.
● all retaining bolts, connecting elements and electrical connections have been tightened to
the specified torque.
● all touch protection measures for moving and live parts have been taken.
● if the second end of the shaft is unused, its featherkey has been secured so that it cannot
fall out and the open shaft end is covered.
● the cooling circuit is connected and ready for operation in the case of the liquid-cooled
version. Please check that:
– the cooling water system is switched on.
– water of the configured quality is used.
Switch on the water cooling before starting the motor.
● all external fans fitted are ready for operation and have been connected such that they
rotate in the direction specified.
● all brakes are operating correctly.
● the indicated speed limit n
max
cannot be exceeded during operation on a converter.
● the required parameters have been correctly set on the converter. The parameterization
data can be found on the rating plate of the motor. Information about the parameters is
available in the operating instructions for the converter.
● in the event that the motor can be driven by the system, you must protect the DC link of
the converter against overspeed/overvoltage. This is done by limiting the field weakening
operation to 120%.
Note
This list does not claim to be exhaustive. It may be necessary to make additional checks
and tests corresponding to the actual plant/system situation. [ID 828.01]
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