Bleeder resistor

[bluehouse 0]

Hi There, Who can tell me which value of bleeder resistor is best for input module and output module? Thanks a lot

[Guest Guest_guest]

10,000 will useually work if you are talking about a pull-up on an input or the little bit of current that is keeping an output light lite when output is really off start with this and go up or down in value until you get the results you want

[bluehouse 0]

Thank you for replying. Not the pull-up resistor. Many field input devices,such as proximity switches, used with PLC-based systems are of a solid-state design. Any electronically based input sensor that uses a solid-switch silicon controlled rectifier (SCR), triac, or transistor will have a small leakage current even when in the off state. Often, the leaky input will only cause the module's input indicator to flicker. The leakage may,howener,result in falsely activated PLC input. To correct the problem, a BLEEDER RESISTOR is connected across or in parallel with the input. The same situation for output. So my question is which value is best for this bleeder resistor.

[KTech 0]

Like the guy said 10k ohm....

[bluehouse 0]

Thanks a lot guys