Patent ID: 9334870
Filing Date: 2016-05-10
CPC Classification: F04D

Claim Text:
1. A method of programming a cooling fan arrangement, wherein the cooling fan arrangement includes (i) a fan, (ii) a fan motor, and (iii) a fan motor controller, the method comprising: receiving, via a power pin of the cooling fan arrangement, power supply from an external system that is external to the cooling fan arrangement; receiving, via a ground pin of the cooling fan arrangement, ground signal from the external system; communicating, via a fault output pin of the cooling fan arrangement, fault signals and programming signals with the external system, wherein the cooling fan arrangement does not (i) receive any clock signal from the external system and (ii) transmit any clock signal to the external system; monitoring, by the fan motor controller, the fault output pin of the cooling fan arrangement, wherein the fan motor controller is configured to selectively wherein monitoring, by the fan motor controller, the fault output pin of the cooling fan arrangement comprises wherein the method further comprises in response to recognizing the pre-determined pattern as the mode command received from the external system, changing an operating mode of the fan motor controller to a programming mode to permit the fan motor controller to receive, via the fault output pin, the information for programming the cooling fan arrangement from the external system.