![]() R7 in the process makes sure T1/T3 get latched in this mode. This initial zero logic is fed via C3 to the base of T1 which instantly conducts forcing T3 and its associated relay to activate. ![]() With power is switched ON, IC 4060 is reset via C2 so that it initiates it counting process from zero, and pin3 is rendered a zero logic. Please note that preferably the "set"/"reset" switches should be implemented using magnetic reed switches. The magnetic switch for "set" may be assumed to be in a deactivated state or depressed while the motor or the designed incubator mechanism is in its zero start position. In the figure above we can visualize a design for implementing the proposed reverse forward motion of an incubator motor after a predetermined set of time interval.Īt the instant when power is switched ON we have the following scenario: This is an important home project that needs to be 100% reliable.
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