E0 Thermistor faults
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Duet Web Control 2.0.4
Board: Duet Maestro 1.0
Firmware: RepRapFirmware for Duet 2 Maestro 3.0 (2020-01-03b3)Thermistor for E0 constantly shows -231. Bed thermistor is ok. I've tried two different thermistors in the e0 slot and neither work even in open air. As a final test I used my known good bed thermistor (still hooked to the bed header) and it still shows bad. The next power on after I put that back shows it giving good measurements agani. This clearly shows it isn't the devices. Here is the G code for those two devices.
The e0 thermistor and spare were stock Ender 3 Pro. The bed heater is a NTC 3950 100K Thermistor.
; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; 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 M143 H0 S150 ; set temperature limit for heater 0 to 150C M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M308 S1 P"e0temp" Y"thermistor" T9880 B4185 ; 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 M143 H1 S275 ; set temperature limit for heater 1 to 275C M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limitWhere do I go next. I specifically paid more this time around for a non-Chinese POS so I didn't have to deal with headers backward and pins mislabeled.
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-231 indicates an "open" circuit, nothing plugged in.
Please post your complete config.g, and a photo of where that sensor is plugged into the board.
Delta / Kossel printer fanatic
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@LostJen said in E0 Thermistor faults:
T9880
Never seen such a low value...could be T100000 but depends on the thermistor
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@DIY-O-Sphere said in E0 Thermistor faults:
@LostJen said in E0 Thermistor faults:
T9880
Never seen such a low value...could be T100000 but depends on the thermistor
It was autogenerated for the Ender 3 Pro. However looking at the github version (2.x firmware) it appears there is a 1 missing from the end. Perhaps a minor typo in the config file generator for V3 firmware?
"I try to meditate, cause they told me it'll help
But the last thing I need is more time alone inside myself"
Hollow by Icon For Hire
http://www.youtube.com/watch?v=9mSf_i1U0TI -
@Danal said in E0 Thermistor faults:
-231 indicates an "open" circuit, nothing plugged in.
Please post your complete config.g, and a photo of where that sensor is plugged into the board.
I'm not sure you really should be asking people for complete config.g files. The password is stored plain text. It'd be stupid to expose a printer to the internet, but still that data should prolly be kept private.
The wiring diagram is actually off here as is shown in this zoomed pictures. The cluster of E0, E1, and Enclosure are not beside the stops, but rather behind the zstop.
E0 Thermistor highlighted in green and yellow. Right now it is in the open air just to rule out a short with the microswiss.This is still mostly the autogenerated file and I expect most of it will need tweaking. But I haven't been able to heat the hotend enough to do the final tighter on my new all metal head, so I was focusing on heat first.
; Configuration file for Duet Maestro (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon Mar 30 2020 11:15:43 GMT-0400 (Eastern Daylight Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"Ender 3 Pro - Duet Maestro" ; set printer name ; Network M551 P"12345678" ; this isn't my password for the duet, it the password for my luggage M552 P0.0.0.0 S1 ; enable network and acquire dynamic address via DHCP M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S0 ; physical drive 0 goes backwards M569 P1 S0 ; physical drive 1 goes backwards M569 P2 S1 ; physical drive 2 goes forwards M569 P3 S0 ; physical drive 3 goes backwards M584 X0 Y1 Z2 E3 ; set drive mapping M350 X16 Y16 Z16 E128 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E741.00 ; set steps per mm M566 X600.00 Y600.00 Z60.00 E300.00 ; set maximum instantaneous speed changes (mm/min) M203 X9000.00 Y9000.00 Z180.00 E6000.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z120.00 E5000.00 ; set accelerations (mm/s^2) M906 X800 Y800 Z800 E900 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 X235 Y235 Z260 S0 ; set axis maxima ; Endstops M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop M574 Z1 S2 ; configure Z-probe endstop for low end on Z ; Z-Probe M950 S0 C"zprobe.mod" ; create servo pin 0 for BLTouch M558 P9 C"zprobe.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height M557 X10:220 Y10:220 S20 ; define mesh grid ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B4092 ; 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 M143 H0 S150 ; set temperature limit for heater 0 to 150C M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M308 S1 P"e0temp" Y"thermistor" T9880 B4185 ; 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 M143 H1 S275 ; set temperature limit for heater 1 to 275C M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit ; Fans M950 F0 C"fan0" Q20 ; 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" Q20 ; create fan 1 on pin fan1 and set its frequency M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on ; Tools M563 P0 S"HotEnd" 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 ; Miscellaneous M501 ; load saved parameters from non-volatile memory M911 S21 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss T0 ; select first toolEDIT: It works now. The autogen wizard has a typo that left off the 1 from 98801. That most likely is the issue, but it is unlikely but also possible that I had an unfortunately tremor/twitch in that field (<sarcasm>I just love my meds, side effects and all</sarcasm>).
EDIT to EDIT: Oh, yeah. Thanks everyone - especially for calling out that low number that made me check the git hub ender 3 pro baseline.
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@LostJen said in E0 Thermistor faults:
It was autogenerated for the Ender 3 Pro. However looking at the github version (2.x firmware) it appears there is a 1 missing from the end. Perhaps a minor typo in the config file generator for V3 firmware?
Where are you seeing this? Because this is the configuration for the Ender 3 Pro for the RRF config tool: https://raw.githubusercontent.com/chrishamm/configtool/master/public/machines/ender3pro.json
It sets both thermistors to "thermistor":100000,"beta":4092
It uses the same template for RRF2 and RRF3.Ian
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@droftarts said in E0 Thermistor faults:
Where are you seeing this? Because this is the configuration for the Ender 3 Pro for the RRF config tool: https://raw.githubusercontent.com/chrishamm/configtool/master/public/machines/ender3pro.json
It sets both thermistors to "thermistor":100000,"beta":4092
It uses the same template for RRF2 and RRF3.Ian
You are right I zipped through it just now. Sorry.
I found the source of the other number and what happened. I didn't use the defaults because the guide I was using said not to. I used my value of 10k for the bed heater's thermistor because it's aftermarket (GCR silicone with a new aluminum plate for better levelness [Part of why I liked the idea of using a Duet product - higher heated bed current support]), but according to the Dozuki site
Set the values for both Thermistor values as: R25 – 98801, B – 4185, R – 2200Unfortunately for me I must have missed the 1 or typed a ` insead. That 98801 does match the github for Ender 3 Pro. So I have different value than template because I used guide and it didn't work because I mistyped. So yes, this was doubly my mistake. I make typos like that entirely too often, but usually autocorrect, triple checking posts, or something catches them for me.
Sorry again, and thank you to everyone for helping me find the issue regardless of where it came from.
"I try to meditate, cause they told me it'll help
But the last thing I need is more time alone inside myself"
Hollow by Icon For Hire
http://www.youtube.com/watch?v=9mSf_i1U0TI -
@LostJen No need to apologise! Easy mistake to make. Just needed to work out if there was anything needing changing our end.
Ian
