Rtd1 says 2000c



  • new pt100 and board wired just like pics show and instructions say, have it as rtd1, temp reading 2000c, unhooked sensor from 2 center pins on temp sensor board and still 2000c no change after rebooting
    ; Heaters
    M143 S280 ; Set maximum heater temperature to 280C
    M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P1 T100000 B4138 C0 R4700 X201 ; Set thermistor + ADC parameters for heater 1 and remap it to channel 201


  • administrators

    You need X200 for rtd1. We should have labelled them rtd0 and rtd1 instead of 1 and 2.



  • now my bed says 2000c also.
    ; Heaters
    M143 S280 ; Set maximum heater temperature to 280C
    M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P0 T100000 B4138 C0 R4700 X200 ; Set thermistor + ADC parameters for heater 1 and remap it to channel 200


  • administrators

    Why did you change P1 to P0 in the second M305 line?

    If it still says 2000C for the hot end when you change it back to P1, check that you have the PT100 wired correctly, and if you are using a 2-wire PT100 connection, check that you installed the 2 jumper wires.



  • ok have back to bed normal but hotend still 2000c
    ; Heaters
    M143 S280 ; Set maximum heater temperature to 280C
    M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P1 T100000 B4138 C0 R4700 X200 ; Set thermistor + ADC parameters for heater 1 and remap it to channel 200



  • no jumpers thought that was older moldel ill try now



  • k have jumper on temp board rt1 between 1 and 2 and 3 and 4 and pt100 between 2 and 3, rtd 2 empty,
    ; Heaters
    M143 S280 ; Set maximum heater temperature to 280C
    M305 P0 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for heater 0
    M305 P1 T100000 B4138 C0 R4700 X200 ; Set thermistor + ADC parameters for heater 1 and remap it to channel 200
    works thank you


  • administrators

    Glad you got it working. You don't need the TBCR parameters in the M305 P1 command because they are only relevant when the sensor is a thermistor. But they won't do any harm either.


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