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Topic-icon Interferences in pulse inputs FBL2360

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1 week 5 days ago #29534588 by acevedo_05

Hello,
I am having some kind of trouble with my FBL2360. I'm sending PWM from a PLC to the pulse inputs of two controllers, and I am also using a digital input for the safe stop. The thing is that after a safe stop, sometimes, the controllers go a bit mad and some wheels move when I am sending a PWM from PLC that corresponds to a 0 motor command. I've monitored the signals with the application and I see that the controller is receiving the comand of 0 and max speed intermitently, even when my PLC is only sending the 0 command. I don't know if you could have any idea of why this is happenning or anything I could do to solve it.
Thanks for your time

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1 week 3 days ago #29534593 by Gabriel_Isko

I am not exactly sure what is going on, but we should check for 2 things:

1) Please make sure that the controllers remains in pulse input mode and that you aren't sending serial command from a script somewhere.

2) please verify that there is no noise on the pulse input command, or that your PLC isn't sending it some signal somewhere. You may have to capture the input with an oscilloscope to verify this.

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