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Manual damper motor control

  • US 5,034,671 A
  • Filed: 01/25/1990
  • Issued: 07/23/1991
  • Est. Priority Date: 01/25/1990
  • Status: Expired due to Fees
First Claim
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1. In a motor actuator of the type having a power output member which is driven in a manner specified by control signals applied to the motor actuator, and including a microprocessor having at least one input port and an output port, said microprocessor programmed to provide the control signals at the output port responsive to an external condition signal provided at one of said input ports, an improvement allowing manual control of the power output member position, comprising:

  • (a) position source select signal generating means including a selector element for human manipulation, for providing a position source select signal having first and second states as the selector element is respectively in first and second positions; and

    (b) adjustment signal generating means connected to an input port of the microprocessor and including an adjustment element to be placed in a plurality of positions by human manipulation, for providing an adjustment signal having a plurality of states as the adjustment element is respectively placed in its plurality of positions;

    wherein the microprocessor includes member positioning means responsive to the position source select signal first state for providing a control signal at the output port dependent on the condition signal and for providing a control signal dependent on the adjustment signal responsive to the position source select signal second state,whereby the power output member is driven to a desired position by manipulation of the selector element to its second position and by manipulation of the adjustment element.

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