SYSTEM AND METHOD FOR DETERMINING A CONDITION OF A FLUID FLOW PATH

摘要

A motor controller configured to be coupled to a motor that is coupled to a fan is described. The motor controller includes a processor coupled to a memory, and is configured to operate the motor in a first operating mode in which the motor rotates the fan in a first direction at a first speed. The motor controller is further configured to operate the motor in a restriction detection mode in which the motor rotates the fan in a second direction that is opposite the first direction, determine a torque associated with the motor while the motor is rotating the fan in the second direction, determine that the torque is not within a predefined threshold range in the memory, and determine that a restriction exists in a fluid flow path associated with the motor in response to determining that the torque is not within the predefined threshold range.

主权项

1. A motor controller configured to be coupled to a motor that is coupled to a fan, said motor controller comprising a processor coupled to a memory, said motor controller is configured to operate the motor in a first operating mode in which the motor rotates the fan at a first speed in a first direction that causes a fluid to move from an inlet of a fluid flow path to an outlet of the fluid flow path, and said motor controller is further configured to:
operate the motor in a restriction detection mode in which the motor rotates the fan in a second direction that is opposite the first direction; determine a torque associated with the motor while the motor is rotating the fan in the second direction; determine that the torque is not within a predefined threshold range stored in said memory; and determine that a restriction exists in the fluid flow path in response to determining that the torque is not within the predefined threshold range.