Bed PT100 Sensor
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Morning All,
I have been scouring the forum and have come across only one mention of this. I am building an Ultimaker+ Extended Clone, my heated bed has a PT100 sensor. I assume I can not use the standard bed thermistor pins for this and it will have to go through the PT100 daughter board. It seems obvious but I just wanted to get it clarified before I go and damage something!
Also if in the future I increased the amount of PT100s required e.g. added another hotend, is there a way of expanding the number of PT100s the Duet Wifi can handle?
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The DuetWiFi can handle 2 Daughter boards that can each handle 2 Sensors so you can have 4 Pt100's or 4 Type K thermocouples or 2 of each depending on which Boards you fit.
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The DuetWiFi can handle 2 Daughter boards that can each handle 2 Sensors so you can have 4 Pt100's or 4 Type K thermocouples or 2 of each depending on which Boards you fit.
Does it plug into the top of the 1st daughter board?
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The DuetWiFi can handle 2 Daughter boards that can each handle 2 Sensors so you can have 4 Pt100's or 4 Type K thermocouples or 2 of each depending on which Boards you fit.
Does it plug into the top of the 1st daughter board?
Yes.
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The DuetWiFi can handle 2 Daughter boards that can each handle 2 Sensors so you can have 4 Pt100's or 4 Type K thermocouples or 2 of each depending on which Boards you fit.
Does it plug into the top of the 1st daughter board?
Yes.
I have everything wired up and the PT100 on the head reads room temp! (YAY) the bed PT100 though reads 415 degrees? It also fluctuates if I keep my hand on the bed, so it seems to be functioning. It just seems to be way off? As if it needs to be reset or something?
How do I define it correctly for the bed? currently my setup looks like this:
; Communication and general M111 S0 ; Debug off M550 PUltiFaker ; Machine name and Netbios name (can be anything you like) M551 Preprap ; Machine password (used for FTP) ;*** If you have more than one Duet on your network, they must all have different MAC addresses, so change the last digits M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0xAB ; MAC Address ;*** Wifi Networking M552 S1 ; Enable WiFi. Disabled for setup and testing. Enable once set up on your network. M555 P2 ; Set output to look like Marlin M575 P1 B57600 S1 ; Comms parameters for PanelDue ; Configuration file for Duet WiFi ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool on Thu Nov 17 2016 21:40:07 GMT+0100 (W. Europe Standard Time) ; General preferences M111 S0 ; Debugging off G21 ; Work in millimetres G90 ; Send absolute coordinates... M83 ; ...but relative extruder moves M555 P2 ; Set firmware compatibility to look like Marlin M208 X0 Y0 Z0 S1 ; Set axis minima M208 X210 Y210 Z300 S0 ; Set axis maxima ; Endstops M574 X1 Y1 Z1 S0 ; Define active low and unused microswitches M558 P0 X0 Y0 Z0 H5 F120 T6000 ; Set Z probe type to switch, the axes for which it is used and the probe + travel speeds ;G31 P600 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height ; Drives M569 P0 S0 ; Drive 0 goes backwards M569 P1 S1 ; Drive 1 goes forwards M569 P2 S0 ; Drive 2 goes backwards M569 P3 S1 ; Drive 3 goes forwards M569 P4 S1 ; Drive 4 goes forwards M350 X16 Y16 E16:16 I0 ; Configure microstepping without interpolation M350 Z16 I1 ; Configure microstepping with interpolation M92 X78.7402 Y78.7402 Z535 E420:420 ; Set steps per mm M566 X1200 Y1200 Z24 E120:120 ; Set maximum instantaneous speed changes (mm/min) M203 X8100 Y8100 Z8100 E1200:1200 ; Set maximum speeds (mm/min) M201 X3000 Y3000 Z3000 E250:250 ; Set accelerations (mm/s^2) M906 X1000 Y1000 Z1000 E800:800 I30 ; Set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Heaters M143 S310 ; Set maximum heater temperature to 310C M305 P0 T10000 B3988 C0 R4700 L0 H0 X201; Set thermistor + ADC parameters for heater 0 M305 P1 T100000 B4138 C0 R4700 L0 H0 X200 ; Set thermistor + ADC parameters for heater 1 and remap it to channel 201 ; *** Thermistors / PT100 RTD M305 P0 X201 ; PT100 Bed, RTD1, channel 201 M305 P1 X200 ; PT100 Tool 0, RTD2, channel 200 M143 H0 S135 ; Maximum temperature - Heated bed , default is 125C M143 H1 S290 ; Maximum temperature - Right extruder, default is 262C M570 S180 ; Hot end may be a little slow to heat up so allow it 180 seconds ; Tools M563 P0 D1 H1 ; Define tool 0 G10 P0 X0 Y0 ; Set tool 0 axis offsets G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C ; Fans M106 P0 S1 I0 F500 H1 T45 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on M106 P1 S1 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off M106 P2 S1 I0 F500 H-1 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off ; Custom settings are not configured -
Your configuration looks ok to me. What happens if you swap channels on the PT100 board?
