PT100 Drops to Zero for a few seconds.

My tempreture Drops from normal to Zero, then to normal again. Can somebody help me?

Comments

  • Sounds like broken or shorted cable.
  • I am getting this same issue after just replacing everything related to the pt100. I was using this setup for years with no issues. I finished replacing the ramps board, amplifier board, heater cartridge, and pt100 sensor. During the first layer temperature will drop to zero then back which decouples the heater.

    Did you ever resolve if your issue was a broken cable or not? I replaced the cable and changed the pin from A3 to A4 and updated the firmware and still getting the same issue. As soon as the print starts temperature goes to zero and fails.
  • It wasn't a broken kable, it was the baud rate, i change it to the max rate, the max amount of dater was to low
  • Ikaron said:
    It wasn't a broken kable, it was the baud rate, i change it to the max rate, the max amount of dater was to low
    thanks, will investigate this myself
  • thanks for sharing 
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