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46. Second Specification - Startup Timer

Introduction to Allen Bradley PLCs - RSLogix 500 • 2m 45s

Up Next in Introduction to Allen Bradley PLCs - RSLogix 500

  • 47. Ball Mill Motor Control

    In the previous section, we configured the timer “T4:1” to time for 20 seconds after the Ball Mill motor starts. If the motor stops for any reason, we will need to determine if the motor has run for the 20-second time period.

    A TON timer is reset when the input logic to the timer is false, so if...

  • 48. Ball Mill Fan Control

    We want to use the timer logic to satisfy the rest of the second program requirement. The oil pump should stop if the Ball Mill motor stops when it has been running less than 20 seconds, but the fan should run an additional 5 seconds.

    We will take advantage of the properties of a Timer Off instr...

  • 49. Ball Mill Fan and Oil Pump Control

    We will look at the third specification for the program:

    "If the Mill has operated for more than 20 seconds, the fan should remain on until reset by a separate fan reset button, and the oil pump should remain on for an additional 10 seconds after the Mill is turned off."

    We will program the log...

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