cubcrazy Posted November 1, 2022 Report Share Posted November 1, 2022 (edited) I have V350 problem. When viewing the watch window input status, if input 0 is turned on, all inputs turn on. Is this a problem others have seen? Edited November 1, 2022 by cubcrazy Tilted change Quote Link to comment Share on other sites More sharing options...
MVP 2023 kratmel Posted November 2, 2022 MVP 2023 Report Share Posted November 2, 2022 Please post V350 model #. Is it plc new or used? Please read manual and check jampers inside PLC. Quote Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted November 2, 2022 MVP 2023 Report Share Posted November 2, 2022 2 hours ago, kratmel said: Please read manual and check jumpers inside PLC. Do this first. It's probably got something to do with whether you have the inputs set to sinking or sourcing and what you're applying to Input 0. Are you applying +24V or a contact closure as referenced to 0V? Joe T. Quote Link to comment Share on other sites More sharing options...
cubcrazy Posted November 2, 2022 Author Report Share Posted November 2, 2022 8 hours ago, kratmel said: Please post V350 model #. Is it plc new or used? Please read manual and check jampers inside PLC. Model # V350-35-TR20 . The unit was purchased new. Quote Link to comment Share on other sites More sharing options...
cubcrazy Posted November 2, 2022 Author Report Share Posted November 2, 2022 6 hours ago, Joe Tauser said: Do this first. It's probably got something to do with whether you have the inputs set to sinking or sourcing and what you're applying to Input 0. Are you applying +24V or a contact closure as referenced to 0V? Joe T. I'm monitoring a mechanical pressure switch, when the switch closes it applies+24 Vdc to input 0. Some manufactures look at this as sourcing the input, others view it as sinking. Quote Link to comment Share on other sites More sharing options...
MVP 2023 kratmel Posted November 2, 2022 MVP 2023 Report Share Posted November 2, 2022 Please post your input diagram connection Quote Link to comment Share on other sites More sharing options...
MVP 2023 Flex727 Posted November 2, 2022 MVP 2023 Report Share Posted November 2, 2022 Here is the relevant section from the installation guide: Quote Link to comment Share on other sites More sharing options...
cubcrazy Posted November 2, 2022 Author Report Share Posted November 2, 2022 53 minutes ago, Flex727 said: Here is the relevant section from the installation guide: Jumper 1 is in position (B) pnp sourcing and input is wired as shown for pnp input wiring. Quote Link to comment Share on other sites More sharing options...
sgull Posted November 2, 2022 Report Share Posted November 2, 2022 Is the 24v from the pressure switch from same 24v source as the supply to the PLC? Quote Link to comment Share on other sites More sharing options...
MVP 2023 Ausman Posted November 2, 2022 MVP 2023 Report Share Posted November 2, 2022 Do you have + and - 24 wired correctly to 1 & 2 as well? Quote Link to comment Share on other sites More sharing options...
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