LED Lights Used With SSR PLC Outputs

[Xterri]

Not an electronics buff, so I need some basic help... I have a PLC which does not have mechanical relay outputs. Therefore, I am assuming that it has solid state relays for output. Few of the outputs are connected to LED lights. However, these LED lights are lit, even though the outputs on the PLC are in the OFF state. I'm assuming that there is voltage leakage through the SSRs. How do you resolve this situation? Would adding a parallel resistor on the same output help? Any other techniques to resolve this phenomenan? Thanks

[BobB]

Are the lights AC or DC? If DC, then the outputs are probably transistor and not SSR. Transistors turn off pretty well. I use transistor cards to DC LED lights all thye time but they are fully protected to protect the transistor outputs - inbuilt diodes. If AC, then there is probably leakage current.

[rpraveenkum]

If the output has the diagnostics option then it bumbs minimum voltage in the output to Check open wire & short wire test. this voltage causes LED to glow which is connected in the output a shunt resistor will solve this issue