You are here:>>sku 200327 current limiting resistor simply burned up
sku 200327 current limiting resistor simply burned up 2020-09-15T22:22:25+00:00

Home Forums Voltage Regulator Support sku 200327 current limiting resistor simply burned up

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • Bryan
    Post count: 0

    Hi,

     

    I bought 200327 to convert 4-20mA to 0-10V for my led controller. My power is 24VDC.

    I am using a PLC to control the current. The PLC is a sinking module and must be supplied with current in the range of 18-30VDC, meaning that the device acts as a power source (In this case a current source) and sends it to the PLC. The PLC actually throttles the current with an internal transistor.

     

    My current wiring setup goes:

    24V+ -> 0.5a fuse -> (current source+)

    (Current source -) -> PLC current input DA2I, which then through the PLC hardware current is throttled and sent to ACOM (0V)

    So my question is why did the resistor just burn up? I do not have continuity between my (Current source -) and 0V. So there should have been no current. Is the current sampling resistor not rated for 24V, or is this unit not meant to be used as a sourcing module?

    Drok
    Keymaster
    Post count: 2452

    Hello Bryan,

    Do you mean 24 v power supply is connected to current input port? If it is that case, what is connected to VCC and GND?

    We are sorry it is hard to confirm connection. Would you like to show that by images or diagram?

    You can share us link or send pictures to service@droking.

    Best regards,

    DROK

     

     

Viewing 2 posts - 1 through 2 (of 2 total)
Reply To: sku 200327 current limiting resistor simply burned up
Your information: