bed sensor always in minus
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hello,
i own a new duet wifi (with reprap3.2.2) and have a problem with the bed sensor. the temperatur is not 20 degres it shows -20 degres. when i move sensor pin to e1temp doesnt has an efekt. the sensor is basicly ok but why is the temperatur in minus ? -
Post your config.g
What kind of thermistor is it?
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config
; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Thu Apr 01 2021 16:06:06 GMT+0200 (Mitteleuropäische Sommerzeit); General preferences
M80 ; Power an
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"X-Plus" ; set printer name; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet; Drives
M569 P0 S0 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M584 X0 Y1 Z2:4 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X94.12 Y94.12 Z400.00 E420.00 ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E180.00 ; set maximum instantaneous speed changes (mm/min)
M203 X9000.00 Y9000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z1000 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 X270 Y200 Z200 S0 ; set axis maxima; Endstops
M574 X2 S1 P"!xstop" ; configure active-high endstop for high end on X via pin xstop
M574 Y2 S1 P"!ystop" ; configure active-high endstop for high end on Y via pin ystop
M574 Z2 S1 P"!zstop+!e1stop" ; configure active-high endstop for high end on Z via pin zstop; Z-Probe
M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:195 S20 ; define mesh grid; Heaters
M308 S0 P"bedtemp" Y"thermistor" T10000 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 H1 B1 S1.00 ; enable 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
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 S285 ; set temperature limit for heater 1 to 285C; Fans
M950 F0 C"fan0" 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"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S0 H1 T50 ; set fan 1 value. Thermostatic control is turned on; Tools
M563 P0 D0 H1 F0 ; 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 are not defined
; Miscellaneous
M501 ; load saved parameters from non-volatile memorythe bed sensor is NTC 100K 1% 3950 B
but i also connected an e3d hotend thermistor to the bed sensor. if the sensor connect to the bed sensor on the duet i get -20, if i connect to e1temp than 20 degres -
@joeko said in bed sensor always in minus:
M308 S0 P"bedtemp" Y"thermistor" T10000 B3950
This should be T100000 not T10000.
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@alankilian said in bed sensor always in minus:
@joeko said in bed sensor always in minus:
M308 S0 P"bedtemp" Y"thermistor" T10000 B3950
This should be T100000 not T10000.
yes
this solved it. thx
