PT100 and daughter board issue
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Hello guys, after some prints, the PT100 didn't want to work anymore.
below are the tests I performed:-
changed the PT100, nothing changed
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tried all the 8 ports with a 100ohm resistance in order to understand if the daughterboard works but the value is always 2000.
I bought the daughter board some weeks ago.
How can I understand if the board works?
thank you. -
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@Ducati87 It was working, and it does not work now? Ot it was not working at all ?
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it worked like a charm. After some prints it doesn't work anymore without a reason...Now I have replaced the PT100 with a normal thermistore.
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Connect the 100R resistor to one of the inputs, also make sure that you have the 2 jumpers for that input fitted.
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If it reads 2000C, send M305 H# (if using RRF2) or M308 S# (if using RRF3) to get the error reason for that sensor, where # is the heater number (RRF2) or sensor number (RRF3).
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Post your config.g file and tell us what firmware version you are using.
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config.g:
; Configuration file for Duet WiFi (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.1.8 on Fri Nov 20 2020 20:14:09 GMT+0100 (Ora standard dell’Europa centrale) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"Hypercube Evolution" ; set printer name M669 K1 ; select CoreXY mode ; Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S1 ; physical drive 0 goes forwards M569 P1 S1 ; physical drive 1 goes forwards M569 P2 S0 ; physical drive 2 goes forwards M569 P3 S1 ; physical drive 3 goes forwards M569 P4 S0 ; physical drive 4 goes forwards M584 X0 Y1 Z2:4 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X161.12 Y160.37 Z393.18:393.18 E830.00 ; set steps per mm M566 X1000.00 Y1000.00 Z15.00 E120.00 ; set maximum instantaneous speed changes (mm/min) M203 X6000.00 Y6000.00 Z600.00 E1800.00 ; set maximum speeds (mm/min) M201 X1800.00 Y1800.00 Z30.00 E300.00 ; set accelerations (mm/s^2) M906 X1000 Y1000 Z1500:Z1500 E1000 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X0 Y0 Z0 S1 ; set axis minima M208 X0:300 Y-45:300 Z285 S0 ; set axis maxima ; Endstops M574 X1 S3 ; configure sensorless endstop for low end on X M574 Y1 S3 ; configure sensorless endstop for low end on Y M574 Z1 S2 ; configure Z-probe endstop for low end on Z ; Z-Probe M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch M558 P9 C"^zprobe.in" H3 F420 T9000 ; set Z probe type to bltouch and the dive height + speeds G31 P500 X22 Y-37 Z2.520 ; set Z probe trigger value, offset and trigger height M557 X0:250 Y25:230 S40:40 ; define mesh grid ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B3950 ; configure sensor 0 as thermistor on pin bedtemp M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0 M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C ;M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin e0temp M308 S1 P"spi.cs2" Y"rtd-max31865" ; configure sensor 1 as thermocouple via CS pin spi.cs2 M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1 M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H1 S290 ; set temperature limit for heater 1 to 290C ; Fans M950 F0 C"Mat Fan1" Q500 ; create fan 0 on pin fan0 and set its frequency M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off M950 F1 C"Hotend Fan" Q500 ; create fan 1 on pin fan1 and set its frequency M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on M950 F2 C"Mat Fan2" Q500 ; create fan 2 on pin fan2 and set its frequency M106 P2 S1 H-1 ; set fan 2 value. Thermostatic control is turned off ; Tools M563 P0 S"hotend 0" D0 H1 F0:2 ; define tool 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 ; Custom settings M404 N1.75 D0.4 ; Nozzle and filament diameter for monitor M200 D1.75 ; set all extruder filament diameters to 1.75mm M671 X40:280 Y145:145 S10 ; Define positions of Z leadscrews or bed levelling screws M376 H10 ; Set bed compensation taper ; Miscellaneous M575 P1 S1 B57600 ; enable support for PanelDue M501 ; load saved parameters from non-volatile memory M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss T0 ; select first toolM308 S1:
M308 S1 Sensor 1 type PT100 (MAX31865) using pin spi.cs2, reading -1.3, last error: success, 2/4 wires, reject 50Hz, reference resistor 400 ohmsFirmware:
Board: Duet 2 WiFi (2WiFi) Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.1.1 (2020-05-19b2) Duet WiFi Server Version: 1.23 -
I would say pt100 board looks OK, and pt100 sensor itself is faulty (as connected 100R resistor gives You around 0*C reading).
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yes now seems to work....I don't know why! Anyway thank you for your support guys!
