Solved Newly installed Duex5, BLTouch no longer working

[tomasro]

Hardware:
RRF 3.3
DuetWifi 1.01
Duex5 0.10
BlTouch 1.1 or 1.2

BLTouch servo is connected to PWM1 of the duex, and the z-probe pins have a 240ohm resistor across them. When the machine is turned on for the first time, it does 2 test probes with the BLTouch pin, then stays lit with the pin retracted. Z-probe in the sensor line of the DWC shows 1000 all the time. M401 and M402 commands no longer work (where they did before). Any ideas?

config.g

[fcwilt]

@tomasro

Re-posted your config.g file using the </> tag.

; Configuration file for Duet WiFi (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.4 on Fri Oct 22 2021 23:28:40 GMT-0700 (Pacific Daylight Time)

; General preferences
G90                                                    ; send absolute coordinates...
M83                                                    ; ...but relative extruder moves
M550 P"R2D Cube"                                       ; set printer name
M669 K1                                                ; select CoreXY mode

;M912 P0 S84.6                                          ;calibrate MCU temperature

; 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 backwards
M569 P1 S0                                             ; physical drive 1 goes backwards
M569 P2 S0                                             ; physical drive 2 goes backwards
M569 P3 S1                                             ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3                                       ; set drive mapping
M350 X16 Y16 Z16 E16 I1                                ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E402.00                      ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00                    ; set maximum instantaneous speed changes (mm/min)
M203 X12000.00 Y12000.00 Z600 E1200.00                ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z100.00 E250.00                    ; set accelerations (mm/s^2)
M906 X900 Y900 Z800 E800 I1                            ; set motor currents (mA) and motor idle factor in per cent
M84 S10                                                ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1                                       ; set axis minima
M208 X455 Y405 Z420 S0                                 ; set axis maxima

; Endstops
M591 P2 C"e0stop" S1   D0                  ; filament monitor connected to E0 endstop
M574 X1 S1 P"!xstop"                                   ; configure switch-type (e.g. microswitch) endstop for low end on X via pin !xstop
M574 Y1 S1 P"!duex.e4stop"                                   ; configure switch-type (e.g. microswitch) 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"duex.pwm1"                                  ; 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 X15:445 Y15:400 S100                              ; 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 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
M307 H1 B0 R2.096 C328.9:300.7 D7.08 S1.00 V16.5
M143 H1 S280                                           ; 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 S1.0 H1 T45                                     ; 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

[fcwilt]

@tomasro

Remember that the self-test the BLTouch does on power up merely means it is getting power.

The control signal from the Duex to the BLTouch and/or the "data" signal from the BLTouch to the Duex can be wrong but the self-test will still complete.

Where on the Duex board is the BLTouch connected?

Thanks.

Frederick

[tomasro]

@fcwilt It's connected to PWM1 on the Duex board, but I just found that my White and Orange wires were swapped, so that has it fixed. Thanks for coming to my aid

[fcwilt]

@tomasro said in Newly installed Duex5, BLTouch no longer working:

@fcwilt It's connected to PWM1 on the Duex board, but I just found that my White and Orange wires were swapped, so that has it fixed. Thanks for coming to my aid

Glad to hear it turned out to be a simple fix.

Frederick