Trouble setting up mains heated bed on RRF 3.x

Surgikill

Hey all,

I just decided to upgrade from 2.03 to 3.2.2. I am going through my config.g and re-writing it all, but I seem to be having an issue with setting up my bed heater.

This is my bed heater config from 2.03

; Heaters
M140 H7					    ; Sets bed heater to heater 7
M307 H7 A223.1 C298.7 D1.2 V22.8 B0         ; Disable bang-bang mode for the bed heater and set PWM limit
M305 P7 T100000 B3950 R4700          	    ; Set thermistor + ADC parameters for heater 7 (Bed)(add S parameter from 0-1 to change PWM limit.)
M143 H7 S90                                 ; Set temperature limit for heater 0 to 90C

This is my bed heater config on 3.2.2

; Heaters
; Bed
M140 H7
M308 S0 P"e6temp" Y"thermistor" T100000 R4700 B3950 ; configure sensor 0 as thermistor on pin bedtemp
M950 H7 C"bedheat" T0                          ; create bed heater output on bedheat and map it to sensor 0
M307 H7 A223.1 C298.7 D1.2 V22.8 B0            ; Disable bang-bang mode for the bed heater and set PWM limit
M143 H7 S120                                   ; set temperature limit for heater 0 to 120C

The thermistor is reporting the correct value on the new config, but I can't get the bed to heat. If I change

M950 H7 C"bedheat" T0

to

M950 H7 C"e6heat" T0

my DWC ends up showing another tool head, and my bed on heater 0/sensor 0, which is no good.

The 2.03 configuration worked, so I'm not sure what I need to change.

I am running a Duex5 and the bed is connected to E6 Heater and E6 Thermistor as called out in this diagram.

https://d17kynu4zpq5hy.cloudfront.net/igi/duet3d/UmicktOhxfaAlZbb.huge

DIY-O-Sphere

@Surgikill said in Trouble setting up mains heated bed on RRF 3.x:

M950 H7

Please check the doku for M950....H now is the channel not the pin.
https://duet3d.dozuki.com/Wiki/Gcode#Section_M950_Create_heater_fan_spindle_or_GPIO_servo_pin
Please use the configurator to generate propper system files.
https://configtool.reprapfirmware.org/Start

Edit:
There are more things that need to be considered or changed.

Veti

@Surgikill said in Trouble setting up mains heated bed on RRF 3.x:

M140

also the configurator takes care of things that you might not be aware of like order

https://duet3d.dozuki.com/Wiki/Gcode#Section_M140_Set_Bed_Temperature_Fast_or_Configure_Bed_Heater

In RRF3 a M140 command with H parameter (other than H-1) must come after the M950 command that creates that heater, and before any M143 command that sets a temperature limit for that heater.

Surgikill

@DIY-O-Sphere Hmm, I did use the configurator, I guess I didn't set it correctly? Seems confusing because M140 H7 sets the heater. I also followed this guide
https://www.youtube.com/watch?v=tAr4zIbRgZs&t=902s

but maybe something changed? Or is it just because I'm trying to remap the default bed heat pin?

DIY-O-Sphere

@Surgikill said in Trouble setting up mains heated bed on RRF 3.x:

Or is it just because I'm trying to remap the default bed heat pin?

In RRf3

C"bedheat"

sets the pin.....

Surgikill

@DIY-O-Sphere Okay, this is what ended up working.

; Heaters
; Bed
M308 S0 P"e6temp" Y"thermistor" T100000 R4700 B3950 ; configure sensor 0 as thermistor on pin bedtemp
M950 H7 C"!exp.heater7" T0                           ; create bed heater output on exp.heater7 and map it to sensor 0
M307 H7 A223.1 C298.7 D1.2 V22.8 B0            ; Disable bang-bang mode for the bed heater and set PWM limit
M140 H7
M143 H7 S80                                   ; set temperature limit for heater 0 to 80C

The naming conventions for pins and thermistor inputs, as well as having the number offset for them seems like an oversight.

DIY-O-Sphere

@Surgikill said in Trouble setting up mains heated bed on RRF 3.x:

The naming conventions for pins and thermistor inputs, as well as having the number offset for them seems like an oversight.

You can use what ever is free for the H paramerter there is no need to name it like the pin... The old standard for the bed was H0.
I would recommend to choose the numbering in ascending order and not in connection with the pin number. This will not work consistently with a more complex configuration.

Veti

@Surgikill said in Trouble setting up mains heated bed on RRF 3.x:

M950 H7 C"!exp.heater7" T0

do you have a duex? if so thats the wrong name. duex pins start with duex

Surgikill

@DIY-O-Sphere So what would the config.g look like for that? Every time I try to change it, it breaks. Also, I wasn't exactly referring to H7 here, more of the fact that the naming conventions for heater 6 and thermistor input 6 do not follow any type of logic and are named and numbered differently than the wiring diagrams.

@Veti I got the pin name from here. https://duet3d.dozuki.com/Wiki/RepRapFirmware_3_overview#Section_Pin_names_for_Duet_2_WiFi_Ethernet

DIY-O-Sphere

@Surgikill said in Trouble setting up mains heated bed on RRF 3.x:

So what would the config.g look like for that?

Please provide the complete config.g

Surgikill

@DIY-O-Sphere

; 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 Mar 04 2021 23:17:38 GMT-0500 (Eastern Standard Time)

; General preferences
G90                                            ; send absolute coordinates...
M83                                            ; ...but relative extruder moves
M550 P"CoreXY"                                 ; set printer name

; Network
M552 S1                                        ; enable network
M586 P0 S1                                     ; enable HTTP
M586 P1 S1                                     ; enable FTP
M586 P2 S1                                     ; enable Telnet

; Motor/driver assignments
M584 X0 Y1 Z5:6:7:8 E3			       ; four Z motors connected to driver outputs 5, 6, 7 and 8

;Select printer mode
M669 K1                                        ; select CoreXY mode (must come after M584)

; Independent Z-axis configuration
M671 X6:0:312.5:312.5 Y-66:391:396:-66 S10     ; leadscrews at front left, rear left, rear right and front right

; Drives
M569 P0 S1                                     ; physical drive 0 goes backwards
M569 P1 S1                                     ; physical drive 1 goes backwards
M569 P3 S0                                     ; physical drive 3 goes forwards
M569 P5 S0                                     ; physical drive 5 goes forwards
M569 P6 S0                                     ; physical drive 6 goes forwards
M569 P7 S0                                     ; physical drive 7 goes forwards
M569 P8 S0                                     ; physical drive 8 goes forwards
M350 X16 Y16 Z16 E16 I1                        ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E409.00              ; set steps per mm
M566 X900.00 Y900.00 Z12.00 E3000.00           ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z600.00 E7200.00        ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E6000.00           ; set accelerations (mm/s^2)
M906 X1200 Y1200 Z800 E1100 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 X310 Y320 Z315 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
M558 P1 C"zprobe.in" H7.5 F600 T6000           ; set Z probe type to unmodulated and the dive height + speeds
G31 P500 X1.34 Y21.75 Z2.5                     ; set Z probe trigger value, offset and trigger height
M557 X0:295 Y32:300 S20                        ; define mesh grid

; Heaters (config-override.g is where ADC values are stored.)
; Bed
M308 S0 P"e6temp" Y"thermistor" T100000 R4700 B3950  ; configure sensor 0 as thermistor on pin bedtemp
M950 H7 C"!exp.heater7" T0                           ; create bed heater output on exp.heater7 and map it to sensor 0
M140 H7                                              ; Define bed heater as heater 7 output
M143 H7 S80                                          ; set temperature limit for heater 0 to 80C

; Hemera
M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.060000e-8 R4700  ; 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 S285                                                      ; set temperature limit for heater 1 to 280C

; 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 S1 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
M575 P1 S1 B57600                              ; enable support for PanelDue
M591 D0 P5 C"eo_stop" R40:120 E3.0 S1 A0       ; Duet3D laser sensor for extruder drive 0 is connected to endstop input 3 (E0), tolerance 40 to 120%, 3mm comparison length
T0                                             ; Select first tool
M501                                           ; load saved parameters from non-volatile memory

DIY-O-Sphere

@Surgikill

M308 S0 P"e6temp" Y"thermistor" T100000 R4700 B3950  ; configure sensor 0 as thermistor on pin bedtemp
M950 H7 C"!exp.heater7" T0                           ; create bed heater output on exp.heater7 and map it to sensor 0
M140 H7                                              ; Define bed heater as heater 7 output
M143 H7 S80                                          ; set temperature limit for heater 0 to 80C

change to

M308 S0 P"e6temp" Y"thermistor" T100000 R4700 B3950  ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"!exp.heater7" T0                           ; create bed heater output on exp.heater7 and map it to sensor 0
M140 H0                                              ; Define bed heater as heater 7 output
M143 H0 S80                                          ; set temperature limit for heater 0 to 80C

Should work...
What probably broke your configuration was that M140 has to come after M950.

And what @veti mentioned is if thermistor and heater are connected to the duex use:

M308 S0 P"duex.e6temp" Y"thermistor" T100000 R4700 B3950  ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"!duex.e6heat" T0                           ; create bed heater output on exp.heater7 and map it to sensor 0
M140 H0                                              ; Define bed heater as heater 7 output
M143 H0 S80                                          ; set temperature limit for heater 0 to 80C

( more accurately expressed...)

Surgikill

@DIY-O-Sphere Thank you. I'll try that after this print finishes. I changed "!exp.heater7" to "!duex.e6heat" and it put the bed in a runaway state, so I un-inverted it to be "duex.e6heat" and it worked fine. Not sure why that happens.

Veti

@Surgikill said in Trouble setting up mains heated bed on RRF 3.x:

@Veti I got the pin name from here. https://duet3d.dozuki.com/Wiki/RepRapFirmware_3_overview#Section_Pin_names_for_Duet_2_WiFi_Ethernet

yes it mentions the duex heater ports

!duex.e2heat,
!duex.e3heat,
!duex.e4heat,
!duex.e5heat,
!duex.e6heat,