- 专利标题： PUMP ASSEMBLY AND METHOD FOR CONTROLLING AN ELECTRIC MOTOR FOR DRIVING AN IMPELLER OF A PUMP UNIT OF A PUMP ASSEMBLY
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申请号： EP20214690.8申请日： 2020-12-16
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公开(公告)号： EP4015827A1公开(公告)日： 2022-06-22
- 发明人: Skafsgaard, Martin Byskov , Gade, Susanne Hamann , Valbjørn, Keld Benner , Aarestrup, Jan Carøe
- 申请人： Grundfos Holding A/S
- 申请人地址： DK 8850 Bjerringbro Poul Due Jensens Vej 7-11
- 代理机构： Patentanwälte Vollmann Hemmer Lindfeld Partnerschaft mbB
- 主分类号： F04D15/00
- IPC分类号： F04D15/00 ; G08C19/28
摘要：
The present disclosure relates to a pump assembly (1) comprising
- a pump unit comprising an impeller for pumping fluid,
- an electric motor for driving the impeller,
- a control module for controlling the speed of the electric motor in a control mode, and
- an interface for receiving a pulse width modulated (PWM) control signal with a duty cycle (DC) indicative of the speed of the electric motor,
wherein the control module is configured to interpret the PWM control signal at start-up of the electric motor per default in a configuration mode as a configuration bit sequence based on the duty cycle (DC) of the PWM control signal during a pre-determined configuration window.
- a pump unit comprising an impeller for pumping fluid,
- an electric motor for driving the impeller,
- a control module for controlling the speed of the electric motor in a control mode, and
- an interface for receiving a pulse width modulated (PWM) control signal with a duty cycle (DC) indicative of the speed of the electric motor,
wherein the control module is configured to interpret the PWM control signal at start-up of the electric motor per default in a configuration mode as a configuration bit sequence based on the duty cycle (DC) of the PWM control signal during a pre-determined configuration window.
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