TOF and TON used in series
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Under condition 1 in the diagram, output 1 is triggered immediately, and after a 20-second delay, output 2 is triggered when condition 2 is met. 1. I’m not sure if this explanation is correct. 2. What is the purpose of adding a FOF before the TON timer? It seems a bit unnecessary; it would be sufficient to simply wait for 20 seconds and then trigger output 2 directly when condition 2 is met
1. Your explanation is basically correct. When TOF and TON are used together, condition 1 triggers output 1 and starts the timing; if condition 2 is met after 20 seconds, then output 2 is triggered. 2. The purpose of adding TON before TOF is likely to ensure that output 1 is triggered immediately after condition 1 is met, rather than waiting for a 20-second delay. This ensures that output 1 is generated immediately, while output 2 is triggered only after condition 1 is met and 20 seconds have passed, in addition to condition 2 also being satisfied. Without TON, it may be necessary to wait both for condition 1 and a 20-second delay before output 1 is triggered, which will delay the activation of output 1. .
This post was last edited by jlshnlhj on 2024-5-4 17:16. The diagram is not properly formatted, and the terminals are not marked, leaving people to guess! THE TOFF and TON models have EN, IN, PT, ENO, Q, and ET terminals. The output below TOF might also be Q (although it isn’t shown that way); it should be connected to the EN terminal of TON.
This post was last edited by Xin Chang Xiao Xu on 2024-5-29 at 13:53. What this diagram shows is that when condition 1 is met, output 1 will be activated; once condition 1 is no longer satisfied, output 1 will be turned off after a 40-second delay. After condition 2 is met, output 2 will be activated after a 20-second delay. The function of TOF is to ensure that output 1 remains active for 40 seconds before being turned off