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    Changing pt100 to standard thermistor

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    • Atraedesundefined
      Atraedes
      last edited by

      ; Configuration file for Anycubic Chiron
      ; Duet WiFi (firmware version 2.03)

      ; General preferences
      G90 ; Send absolute coordinates...
      M83 ; ...but relative extruder moves

      ; Network
      M550 P"Anycubic Chiron" ; Set machine name
      M551 P"" ; Set machine password
      M552 S1 ; Enable network
      M586 P0 S1 ; Enable HTTP
      M586 P1 S0 ; Disable FTP
      M586 P2 S0 ; Disable Telnet

      ; Configure Drives
      M569 P0 S1 ; Drive 0 goes forwards
      M569 P1 S0 ; Drive 1 goes backwards
      M569 P2 S0 ; Drive 2 goes backwards
      M569 P3 S0 ; Drive 3 goes backwards
      M569 P4 S0 ; Drive 4 goes backwards

      M584 X0 Y1 Z2:3 E4 ; Apply custom drive mapping
      M671 X-40:440 Y200:200 ; Leadscrews position at right and left of the X axis

      M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
      M92 X80 Y100 Z398 E432 ; Set steps per mm
      M566 X1200 Y1200 Z25 E120 ; Set maximum instantaneous speed changes (mm/min)
      M203 X12000 Y12000 Z1000 E1200 ; Set maximum speeds (mm/min)
      M201 X1000 Y800 Z250 E250 ; Set accelerations (mm/s^2)
      M906 X1200 Y1200 Z1200 E960 I30 ; Set motor currents (mA) and motor idle factor in per cent
      M84 S30 ; Set idle timeout

      ; Dimensional Accuracy Adjustment
      M579 X1.0025 Y0.9975 Z1.0025

      ; Axis Limits
      M208 X0 Y0 Z0 S1 ; Set axis minimum
      M208 X401 Y400 Z445 S0 ; Set axis maximum

      ; Endstops
      M574 X1 Y1 S0 ; Set active low Endstops for X/Y Axis
      M574 Z1 S1 ; Set active high Endstops for Z axis

      ; Z-Probe - Microswitch
      M558 P4 H4.42 F500 T6000 ; Set Z probe type to switch and the dive height + speeds
      G31 P500 X0 Y0 Z15.58
      M557 X0:400 Y0:400 S20 ; probe from X=0 to 415, Y=0 to 415mm with a mesh spacing of 20mm

      ; Bed
      M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
      M143 H0 S120 ; Set temperature limit for heater 0 to 120C

      ; Tool 0
      M307 H1 A1230.8 C312.7 D7.2 S1.00 V26.3 B0
      M305 P1 X200 ; Set PT100 + ADC parameters for heater 1
      M143 H1 S280 ; Set temperature limit for heater 1 to 280C

      ; Fans
      M106 P0 H-1 S0 ; Set fan 0 value, Thermostatic control is turned off
      M106 P1 T45 H1 S0 ; Set fan 1 value, Thermostatic control is turned on
      M106 P2 H-1 S0 ; Set fan 0 value, Thermostatic control is turned off

      ; Tools
      M563 P0 D0 H1 F0:1 ; Define tool 0 - use extruder 0, heater 1 (and fan 0)
      G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
      G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
      T0 ; Select Tool 0

      ; Automatic power saving
      M911 S21 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss

      ; Other
      G29 S1

      Phaedruxundefined 1 Reply Last reply Reply Quote 0
      • Atraedesundefined
        Atraedes
        last edited by

        replaced with a PT100-550BW from amazon, but not sure what thermistor is in the sovol sv01 direct drive complete rig i bought

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        • Phaedruxundefined
          Phaedrux Moderator @Atraedes
          last edited by

          @Atraedes said in Changing pt100 to standard thermistor:

          ; Tool 0
          M307 H1 A1230.8 C312.7 D7.2 S1.00 V26.3 B0
          M305 P1 X200 ; Set PT100 + ADC parameters for heater 1
          M143 H1 S280 ; Set temperature limit for heater 1 to 280C

          It's the M305 P1 X200 that configures it to use a PT100.

          Compare that to the M305 line for the bed which is using a thermistor.

          You'd change the X200 to be the thermistor values for your new thermistor.

          M305 P1 T100000 B3950 for example, is what you'd use for a generic NTC100K 3950 thermisor.

          Z-Bot CoreXY Build | Thingiverse Profile

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          • Atraedesundefined
            Atraedes
            last edited by

            the first errors were what i mentioned before about the temp warning that the heater was over powered and may get to over 2k c, but then also intermittent heater 1 faults and i have to reset all the time, the daughter board seems ok but i guess i may have got a pt100 to big perhaps?

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            • Vetiundefined
              Veti
              last edited by

              @Atraedes said in Changing pt100 to standard thermistor:

              sovol sv01

              according to this

              https://github.com/CopterTec/Marlin-Sovol_SV01/blob/master/config/SOVOL/SV01/Configuration.h

              EPCOS 100k

              Atraedesundefined 1 Reply Last reply Reply Quote 0
              • Phaedruxundefined
                Phaedrux Moderator
                last edited by

                Can you also post the results of M122?

                Is your power supply 12v or 24v?

                Is the heater cartridge 12v or 24v?

                Normally the warning of over powered heater is just a warning, but your estimated temp of 1500c or whatever it was is abnormally large. That makes me worry that your heater cartridge may be 12v and your power supply 24v, which would be a dangerous combination.

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                • Atraedesundefined
                  Atraedes
                  last edited by

                  sorry tried m122 but its says the response is to long

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                  • Phaedruxundefined
                    Phaedrux Moderator
                    last edited by

                    Send it from the console tab

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                    • Atraedesundefined
                      Atraedes
                      last edited by

                      ok i will take a pic, 2 secs

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                      • Atraedesundefined
                        Atraedes
                        last edited by

                        chiron.jpg )

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                        • Atraedesundefined
                          Atraedes @Veti
                          last edited by

                          @Veti cheers mate

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                          • Atraedesundefined
                            Atraedes @Phaedrux
                            last edited by

                            @Phaedrux M122
                            === Diagnostics ===
                            RepRapFirmware for Duet 2 WiFi/Ethernet version 2.05.1 running on Duet WiFi 1.02 or later
                            Board ID: 08DJM-9178L-L2MS8-6JKFL-3SD6N-KVGQN
                            Used output buffers: 3 of 24 (17 max)
                            === RTOS ===
                            Static ram: 25712
                            Dynamic ram: 93176 of which 0 recycled
                            Exception stack ram used: 320
                            Never used ram: 11864
                            Tasks: NETWORK(ready,628) HEAT(blocked,832) MAIN(running,3728) IDLE(ready,160)
                            Owned mutexes:
                            === Platform ===
                            Last reset 00:18:35 ago, cause: power up
                            Last software reset time unknown, reason: User, spinning module GCodes, available RAM 11956 bytes (slot 0)
                            Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
                            Error status: 0
                            Free file entries: 10
                            SD card 0 detected, interface speed: 20.0MBytes/sec
                            SD card longest block write time: 0.0ms, max retries 0
                            MCU temperature: min 28.3, current 28.4, max 28.8
                            Supply voltage: min 26.3, current 26.4, max 26.5, under voltage events: 0, over voltage events: 0, power good: yes
                            Driver 0: standstill, SG min/max not available
                            Driver 1: standstill, SG min/max not available
                            Driver 2: standstill, SG min/max not available
                            Driver 3: standstill, SG min/max not available
                            Driver 4: standstill, SG min/max not available
                            Date/time: 2021-01-11 21:09:04
                            Cache data hit count 3407316226
                            Slowest loop: 3.10ms; fastest: 0.07ms
                            I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
                            === Move ===
                            Hiccups: 0, FreeDm: 160, MinFreeDm: 160, MaxWait: 0ms
                            Bed compensation in use: mesh, comp offset 0.000
                            === DDARing ===
                            Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
                            === Heat ===
                            Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
                            Heater 1 is on, I-accum = 0.0
                            === GCodes ===
                            Segments left: 0
                            Stack records: 1 allocated, 0 in use
                            Movement lock held by null
                            http is idle in state(s) 0
                            telnet is idle in state(s) 0
                            file is idle in state(s) 0
                            serial is idle in state(s) 0
                            aux is idle in state(s) 0
                            daemon is idle in state(s) 0
                            queue is idle in state(s) 0
                            autopause is idle in state(s) 0
                            Code queue is empty.
                            === Network ===
                            Slowest loop: 201.14ms; fastest: 0.08ms
                            Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
                            HTTP sessions: 1 of 8

                            • WiFi -
                              Network state is running
                              WiFi module is connected to access point
                              Failed messages: pending 0, notready 0, noresp 4
                              WiFi firmware version 1.23
                              WiFi MAC address cc:50:e3:e3:ad:08
                              WiFi Vcc 3.40, reset reason Turned on by main processor
                              WiFi flash size 4194304, free heap 23952
                              WiFi IP address 192.168.0.28
                              WiFi signal strength -58dBm, reconnections 0, sleep mode modem
                              Socket states: 0 0 0 0 0 0 0 0
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                            • Atraedesundefined
                              Atraedes
                              last edited by

                              @Phaedrux said in Changing pt100 to standard thermistor:

                              M305 P1 T100000 B3950

                              so M305 P1 T100000 B3950 is the g code for the standard epcos 100k thermistor i can install instead? and then just wire it to the conventional thermistor terminal instead and simply remove the daughter board?

                              Phaedruxundefined 1 Reply Last reply Reply Quote 0
                              • Phaedruxundefined
                                Phaedrux Moderator
                                last edited by

                                @Atraedes said in Changing pt100 to standard thermistor:

                                Supply voltage: min 26.3, current 26.4, max 26.5, under voltage events: 0, over voltage events: 0, power good: yes

                                Your power supply seems to be tuned a bit high. Can you carefully check the output voltage with a multimeter?

                                Are you sure your hotend heater cartridge is 24v?

                                Z-Bot CoreXY Build | Thingiverse Profile

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                                • Phaedruxundefined
                                  Phaedrux Moderator @Atraedes
                                  last edited by

                                  @Atraedes said in Changing pt100 to standard thermistor:

                                  @Phaedrux said in Changing pt100 to standard thermistor:

                                  M305 P1 T100000 B3950

                                  so M305 P1 T100000 B3950 is the g code for the standard epcos 100k thermistor i can install instead? and then just wire it to the conventional thermistor terminal instead and simply remove the daughter board?

                                  Correct.

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                                  • Atraedesundefined
                                    Atraedes @Phaedrux
                                    last edited by

                                    @Phaedrux i thought so to lol, but the multimeter is at the inlaws and i cant get it back, lockdown lol, but thanks, i will check it when i get it back

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                                    • Atraedesundefined
                                      Atraedes @Phaedrux
                                      last edited by

                                      @Phaedrux fantastic, many thanks, so programme the G-Code first and then wire it in, or it doesn't matter? I cant say for sure about the heater cartridge as i have so many spares lying around it might very well be a 12v but I didn't think it was due to its size, but now that i can rewire to the standard thermistor i have the complete hotend for the direct drive rig, sir, thanks again for your assistance, much appreciated!

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                                      • Phaedruxundefined
                                        Phaedrux Moderator
                                        last edited by

                                        If your PSU has a trim pot for adjusting the output voltage try giving it a slight tweak and see if it reduces the value in the M122 a bit. Aim for 24v.

                                        Then if you connect your new thermistor and run a PID tuning see if the warning is the same. If it still estimates a 1000c+ max temp you should beware.

                                        You can also check your thermistor resistance with a multimeter to see if it's closer to 12v or 24v, but.. multimeter...

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                                        • Atraedesundefined
                                          Atraedes @Phaedrux
                                          last edited by

                                          @Phaedrux thanks, ive just sent the comand and this came back, is this ok to now rewire or is there a problem? it says error...
                                          M305 P1 T100000 B3950
                                          Heater 1 uses PT100 (MAX31865) sensor channel 200, last error: short-circuit in sensor, 2/4 wires, reject 50Hz, reference resistor 400 ohms

                                          Vetiundefined 1 Reply Last reply Reply Quote 0
                                          • Phaedruxundefined
                                            Phaedrux Moderator
                                            last edited by

                                            You should make the change to config.g and then reboot. You can rewire whenever you wish.

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