ToolChanger Toolboard Hemera Motor Not Working

terencemuscat

jay_s_uk

@terencemuscat added config so its easy for others to read

; Configuration file for Duet 3 (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.5 on Tue Nov 16 2021 08:00:11 GMT+0100 (Central European Standard Time)

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

G4 S1   ;wait for expansion boards to start

; Drives
M569 P0.0 S1 D2                              ; physical drive 0.0 goes forwards
M569 P0.1 S1 D2                              ; physical drive 0.1 goes forwards
M569 P0.2 S1                                 ; physical drive 0.2 goes forwards
M569 P0.3 S1                                 ; physical drive 0.3 goes forwards
M569 P10.0 S1  							     ; Drive 10.0 (E0) spreadCycle mode		
M569 P20.0 S1 							     ; Drive 20.0 (E1) spreadCycle mode
	
M584 X0.0 Y0.1 Z10.0 C0.3                     ; set drive mapping
M584 E10.0:20.0                              ; set extruder drivers

M208 X0:370 Y0:323 Z0:350                    ; set axis minima & maxima
M208 C0:240 S0							     ; set axis minima & maxima

M350 X16 Y16 Z16 I1                          ; configure microstepping with interpolation
M350 C8 I0 									 ; configure microstepping with interpolation
M350 E16:16 I1  							 ; configure microstepping with interpolation

M92 X160.00 Y160.00 Z1600.00 C100            ; set steps per mm
M92 E409:409                                 ; set steps per mm for extruders

M566 X400.00 Y400.00 Z16.00 C2 E200:200      ; set maximum instantaneous speed changes (mm/min)
M203 X12000 Y12000 Z180 C5000 E5000:5000       ; set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z40.00 C200 E2500:2500; set accelerations (mm/s^2)
M906 X1000 Y1000 Z2500 C400 E1400:1400 I30   ; set motor currents (mA) and motor idle factor in per cent (MAX XY=2000mA ; Z=3000mA)
M84 S120                                      ; Set idle timeout

; Endstops
M574 X2 S1 P"!io7.in"                        ; configure switch-type (e.g. microswitch) endstop for high end on X via pin !io7.in
M574 Y1 S1 P"!io8.in"                        ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin !io8.in
M574 Z1 S2                                   ; configure Z-probe endstop for low end on Z
M574 C1 S3                                   ; stall detect coupler
M950 J0 C"!io0.in"					         ; Tool 0
M950 J1 C"!io1.in"					         ; Tool 1
M950 J2 C"!io2.in"					         ; Tool 2
M950 J3 C"!io3.in"					         ; Tool 3

; Z-Probe
M558 P5 C"^io4.in" H1 F120 T6000             ; set Z probe type to switch and the dive height + speeds
G31 P500 X0 Y0 Z1                            ; set Z probe trigger value, offset and trigger height
M557 X45:330 Y55:260 S40                     ; define mesh grid

;Stall Detection
M915 C S1 F1 H400 			       	         ; Coupler

; Bed Heater
M308 S0 P"temp0" Y"thermistor" T145000 B4388 C7.06e-8 ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out0" T0                              ; create bed heater output on out0 and map it to sensor 0
M143 H0 S120                                    ; set temperature limit for heater 0 to 120C
M307 H0 R0.213 C960.4 D11.09 S1.00 V23.9 	    ; Heater 0 tuning results
M140 H0                                         ; map heated bed to heater 0

; Tool 0 Heater
M308 S1 P"10.temp0" Y"thermistor" T97000 B4725 C7.06e-8  ; configure sensor as thermistor
M950 H1 C"10.out0" T1                                    ; create nozzle heater output  and map it to sensor 1
M307 H1 B0 R1.893 C181.7 D6.24 S1.00 V24.2               ; Heater 2 tuning results
M143 H1 S300                                             ; set temperature limit for heater 1 to 300C

; Tool 1 Heater
M308 S2 P"20.temp0" Y"thermistor" T100000 B4725 C7.06e-8  ; configure sensor as thermistor
M950 H2 C"20.out0" T2                                     ; create nozzle heater output  and map it to sensor 1
M307 H2 B0 R1.733 C177.5 D4.99 S1.00 V24.3                ; Heater 1 tuning results
M143 H2 S300                                              ; set temperature limit for heater 1 to 300C

; Lights
M950 F0 C"out4" Q500                         ; create fan 0 on pin out4 and set its frequency
M106 P0 C"Lights" S1 H-1                     ; set fan 0 name and value. Thermostatic control is turned off

;Fans
M950 F1 C"10.out1+out1.tach" 			; Tool 0 hot end fan with tacho
M106 P1 S0 H1 T50
M950 F2 C"10.out2" 						; Tool 0 print cooling fan, no tacho
M106 P2 C"T0 Print Cooling Fan" S0 B0.5 

M950 F3 C"20.out1+out1.tach" 			; Tool 1 hot end fan with tacho
M106 P3 S0 H2 T50
M950 F4 C"20.out2" 						; Tool 1 print cooling fan, no tacho
M106 P4 C"T1 Print Cooling Fan" S0 B0.5 

;Tools
M563 P0 S"T0" D0 H1 F2 					; Define tool 0
M563 P1 S"T1" D1 H2 F4 					; Define tool 1

M501

jay_s_uk

@terencemuscat nothing jumps out at me as being incorrect.
but looking back at the M122 B10 and B20, for driver 0 on both boards it states "assumed not present". Thats really odd and doesn't match the output I see on my toolboards (but I'm running 3.4b6 and not 3.3).
would you be happy to update to 3.4b6?
can you also update the bootloader on each board? it can be found here https://github.com/Duet3D/Duet3Bootloader/releases/download/2.3/Duet3Bootloader-SAMC21.bin
you would use M997 S3 B10 to do so (and B20 too)

dc42

@terencemuscat it appears that the drivers on both tool boards are not responding to the firmware. Please post hi res photos of the drivers so that we can see if there is any apparent damage to them.

terencemuscat

@dc42 I'm remembering that during assembly I wired + to - and vice versa by mistake, and I heard a popping noise when I switched it on. However I swapped them and powered back on and everything worked (except steppers). Could it be that I fried the drivers?

I will send a picture later today. If I fried them at least I have another 2 I''m not using.

jay_s_uk

@terencemuscat quite possibly. popping and electronics never go well

dc42

@terencemuscat said in ToolChanger Toolboard Hemera Motor Not Working:

@dc42 I'm remembering that during assembly I wired + to - and vice versa by mistake, and I heard a popping noise when I switched it on. However I swapped them and powered back on and everything worked (except steppers). Could it be that I fried the drivers?

Sadly, yes. If the VIN + and - are swapped on a board then the output mosfet body diodes in the stepper driver will conduct and the driver will carry whatever current the PSU can supply until the fuse (if any) blows.

The voltage regulator is protected by a diode (not specifically to protect against VIN reversal, but to protect against the regulator output capacitor discharging back through the regulator to VIN). The OUT mosfet body diodes will also conduct if a heater or fan is connected, but a heater will limit the current, so the mosfet will survive for a while at least. If a fan was connected then whether the mosfet survives will depend on how the fan reacted to reverse polarity.

So it's likely that the boards could be repaired by replacing the stepper driver chips, although this requires SMD rework equipment.

terencemuscat

Thanks everyone for the detailed explanation. This evening I will replace the board and will give you an update.

Attached is also an image of the toolchanger should it be of interest. Thanks!

terencemuscat

So, i changed the boards and all works perfectly now. Thankyou

T3P3Tony

@terencemuscat thanks for the update and that is a nice looking machine!

terencemuscat

@t3p3tony Thankyou!