An actuator system which may incorporate a motor, a motor controller connected to the motor, a processor connected to the motor controller, and a switch connected to the processor for engaging the motor to open and close an actuator shaft. The switch may have a position which is a test mode. Selecti
An actuator system which may incorporate a motor, a motor controller connected to the motor, a processor connected to the motor controller, and a switch connected to the processor for engaging the motor to open and close an actuator shaft. The switch may have a position which is a test mode. Selecting the position of test mode may cause the motor to move the actuator shaft to a certain position to verify operation of the actuator shaft. The actuator shaft may stay in the certain position while the switch is in a position of test mode. The system may also incorporate a spring attached to the actuator shaft. If power fails to the motor, then the actuator spring or another mechanism may return the actuator shaft to a fail safe position. The test mode may alternatively be selected at a controller via the communications bus to the processor.
대표청구항▼
1. An actuator system for use with heating, ventilating and air conditioning (HVAC) equipment, comprising: a motor;a motor controller connected to the motor;a processor connected to the motor controller; anda switch connected to the processor for engaging the motor to move an HVAC actuator shaft in
1. An actuator system for use with heating, ventilating and air conditioning (HVAC) equipment, comprising: a motor;a motor controller connected to the motor;a processor connected to the motor controller; anda switch connected to the processor for engaging the motor to move an HVAC actuator shaft in a first direction to move an HVAC component during a normal application mode; andwherein:the switch has a position which is a test mode; andselecting the position of test mode after installation of the actuator in an HVAC system causes the motor to move the actuator shaft in the first direction to a fully open position to verify operation of the actuator shaft, wherein the actuator shaft stays in the fully open position while the switch is in a position of test mode. 2. The system of claim 1, wherein if power fails to the motor, then the actuator shaft returns to a fail safe position. 3. The system of claim 1, wherein the HVAC component is selected from a group consisting of a damper, a valve, ventilator flap and a louver. 4. The system of claim 1, further comprising: a communications bus connected to the processor; andwherein the test mode alternatively is selected at a controller via the communications bus to the processor. 5. The system of claim 4, wherein the communications bus comprises two polarity-insensitive wires. 6. An actuator system for use with heating, ventilating and air conditioning (HVAC) equipment, comprising: an HVAC actuator; andwherein the actuator comprises: a motor;a gear train connected to the motor;a processor connected to the motor, the processor comprising actuator software;an actuator shaft coupling connected the gear train, wherein the actuator shaft coupling is configured to move in a first direction to move an HVAC component during a normal application mode;a shaft position sensor connected to the actuator shaft coupling and the processor; anda mode selector connected to the processor;wherein selecting a test mode on the mode selector after installation of the actuator in an HVAC system results in the actuator shaft coupling moving in the first direction to a test mode position, wherein the test mode position is a fully open position; andwherein the actuator software verifies selecting the test mode on the mode selector, the actuator software exercises an algorithm, and the algorithm states: IF Test Mode THENSet actuator to maximum allowable speedCause actuator to fully open by moving to an end of an allowable spanRemain in this position while in Test Mode. 7. The actuator system of claim 6, wherein the mode selector is part of a potentiometer comprising addresses for the actuator. 8. The actuator system of claim 7, further comprising: a housing enclosing the actuator; andwherein the mode selector is accessible on at least two places of the housing for selecting the test mode. 9. The actuator system of claim 6, wherein the HVAC component is selected from a group consisting of a damper, a valve, a ventilation flap and a louver. 10. A method for verifying that a heating, ventilating and air conditioning (HVAC) actuator has been installed correctly, comprising: installing the actuator in an HVAC system;installing a mode selector on an HVAC actuator, the mode selector having a test mode, wherein the actuator is configured to move in a first direction to move an HVAC component to a fully open position during a normal application mode;connecting the mode selector to a processor of the actuator, the processor comprising actuator software to verify that the mode selector has been turned to the test mode; andverifying that the actuator has been installed correctly by turning the mode selector to test mode thereby moving the actuator in the first direction to the fully open position at an end of an allowable span of the actuator within a predetermined time, wherein after turning the mode selector to test mode, the actuator software then exercises an algorithm as follows: IF Test Mode THENSet actuator speed to maximum allowable speedCause actuator to fully open by moving to an end of its allowable spanRemain in this position while in Test Mode. 11. The method of claim 10, wherein: the mode selector comprises a potentiometer having a plurality of mode selections; andthe potentiometer is connected to the processor. 12. The method of claim 10, wherein: the actuator is enclosed within a housing; andthe mode selector is accessible on at least two places of the housing. 13. The method of claim 10, further comprising: connecting the processor of the actuator to a remote controller via a communications bus; andalternatively selecting the test mode for the actuator at the controller. 14. The method of claim 13, wherein the communications bus comprises two polarity-insensitive wires. 15. The method of claim 10, wherein the actuator returns to a fail safe position upon a failure of electrical power to the actuator.
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