CPC F04D 15/0066 (2013.01) [F04D 13/06 (2013.01); H02P 7/29 (2013.01); H02P 2207/05 (2013.01)] | 17 Claims |
1. A pump assembly comprising:
a pump unit comprising an impeller configured to pump fluid;
an electric motor for driving the impeller;
a control module configured to control a speed of the electric motor in a control mode; and
an interface configured to receive a pulse width modulated (PWM) control signal with a duty cycle 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 of the PWM control signal during a pre-determined configuration window, wherein the control module is configured to extend a length of the configuration window at least until the control module has received a full and valid configuration bit sequence under a condition that a valid synchronization sequence was detected in the interpreted configuration bit sequence.
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