Procedure for producing the speed reference for a crane motor

Details Procedure for producing the speed reference for a crane motor Procedure for producing the speed reference for a crane motor

H - Electricity

02

P

H02P 27/04 (2006.01)

Patent

CA 2057753

A procedure for producing a speed reference signal for a crane motor control when the converter feeding the motor is controlled by means of at least one manually-operated controller. To allow the speed reference signal to be changed, the controller has a control position in which the value of the speed reference signal is changed as a function of time. In order to facilitate more accurate manual control of the motor speed, when the speed of the motor is above a predetermined minimum value, the time derivative of the speed reference signal is changed during acceleration of the motor.

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