Invention Grant
- Patent Title: Actuator having a test mode
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Application No.: US15973048Application Date: 2018-05-07
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Publication No.: US10744848B2Publication Date: 2020-08-18
- Inventor: Daniel Waseen , Bruce S. Johnson , Larry Weber , Paul Wacker
- Applicant: Honeywell International Inc.
- Applicant Address: US NJ Morris Plains
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morris Plains
- Agency: Seager, Tufte & Wickhem LLP
- Main IPC: B60H1/00
- IPC: B60H1/00

Abstract:
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.
Public/Granted literature
- US20180251010A1 ACTUATOR HAVING A TEST MODE Public/Granted day:2018-09-06
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