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1.2.14 Adaptable Motor
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The cooling fan and rotor shaft of general motor are coaxial, which results in
reduced cooling effect when the rotational speed declines. If variable speed is
required, add a more powerful fan or replace it with variable-frequency motor
in applications where the motor runs at low frequency for a long time.
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The standard parameters of the adaptable motor have been configured
inside the AC drive. It is still necessary to perform motor auto-tuning or modify
the default values based on actual conditions. Otherwise, the running effect
and protection performance will be affected.
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The standard adaptable motor is adaptable four-polo squirrel-cage AC
asynchronous induction motor or PMSM. For other types of motor, select a
proper AC drive according to the rated motor current.
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The AC drive may alarm or even be damaged when short-circuit exists on
cables or inside the motor. Therefore, perform insulation short-circuit test
when the motor and cables are newly installed or during routine maintenance.
During the test, make sure that the AC drive is disconnected from the tested
parts.
Safety and Cautions
