Synchronization input for time based sequence controller

Details Synchronization input for time based sequence controller Synchronization input for time based sequence controller

1984-04-13

1986-07-29

Smith, Jerry

Boots, shoes, and leggings

100 4, 100 5, 100 13, B30B 1300, G06F 1520

Patent

active

046033793

ABSTRACT:
An automatic round or roll baler includes a microprocessor controlled signal processing circuit for controlling the wrapping of bales in a predetermined wrapping pattern. The wrapping pattern is generated by selectively actuating switches to produce a wrap sequence table containing control words. The control words are subsequently accessed in sequence to control the application of control signals to a motor which drives a twine dispensing mechanism. The last control word stored in the sequence table includes a "home" code which causes the motor to be driven in a direction toward a home position. A home position switch is provided for sensing when the twine dispensing mechanism is in the home position. In response to the home code the twine dispensing mechanism is driven toward the home position until the home switch is actuated at which time the drive to the twine dispensing mechanism is terminated. This insures that each bale wrapping sequence begins with the twine dispensing mechanism in the home position. A time count is initiated when the home control word is accessed and if the time count should expire before the home position switch senses that the dispensing mechanism reaches the home position the microprocessor locks into a loop so that the operator must intervene to correct the malfunction.

REFERENCES:
patent: 4026205 (1977-05-01), Blanshine et al.
patent: 4253389 (1981-03-01), Campbell et al.
patent: 4354429 (1982-10-01), Boldenow et al.
patent: 4437399 (1984-03-01), Koning

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