Monday, February 28, 2011

Machine Control: Act 3.1.1- Input/Output


Mini Switch:

not pressing switch, plugs 1 and 3

-unchecked

-zero

-voltage not present

pressing switch, plugs 1 and 3

-checked

-one

-voltage present


Plugs 1 and 2

-reversed from when it is in plugs 1 and 3

-switch constantly when it is in plugs 1 and 3

-when pressed the current is stopped


Analogs

Potentiometer

-range 49-55000hms

NTC Resistor

-value 1186

NTC Resistor warmed

-value 1140


Outputs

- one can change the direction of the motor shaft without switching between CW and CCW by putting power for 01 to CW or 02 for CCW.


14. when the reed switched and electromagnetic touch is a current through the reed switch moving it from zero to one


15. normally close


16. the more light the photoresistor recieves the less it can actually resist


17. there is no relationship


Conclusion

1. the two lines together means constantly on and the lines broken up means constantly off

2. resistance decreases as the NTC resistor heats up because warmer metals transfer current easier than cold metals allowing the current to travel through it easier.

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