@curlypaul

Unplugged because of that fear. I don’t have a nice, small crimp tool so those are going to be redone. Same issues with nothing plugged in but CAN and power.

@samlogan87 @rjenkinsgb The only reason I claimed a firmware bug is my Toolboard is blinking 4 and 2 which indicates a firmware issue. I have the resistor bridge soldered. I will report back ASAP with the bridge cables not connected. For some reason, I got to the conclusion that the resister was simply adding to the circuit of the bridged wires, not completing the circuit without them. I really appreciate the clarification. If this works, I owe @rjenkinsgb a few beers.

Help Diagnosing Driver Warnings and Motor Pauses – Duet 6HC on RatRig VCore 3 (500mm)
Printer Setup:

Controller: Duet 6HC
Motors: NEMA 17
Printer: RatRig VCore 3 (500mm)
Issue: Stepper drivers are reporting disconnection warnings, and motors randomly pause during prints/movements.
Issue Description:
I'm running a Duet 6HC on my RatRig VCore 3 (500mm) with NEMA 17 stepper motors, and I'm experiencing random pauses in motor movement, along with frequent "Driver phase may be disconnected" warnings. The motors are not even slightly warm, so I don't think it's overheating.

I keep getting warnings like this:
Warning: Driver 0.4 warning: phase B may be disconnected
Warning: Driver 0.3 warning: phase A may be disconnected
Warning: Driver 0.5 warning: phase A may be disconnected
The issue affects drivers 0.3, 0.4, and 0.5 most frequently.

What I've Checked So Far:
Motor Wiring:

Verified all stepper motor connections are secure.
Checked for any broken, loose, or frayed wires.
Swapped cables between drivers, but warnings still persist.
Duet Board:

Checked for visible damage on stepper driver chips.
Ensured cooling is adequate.
Motor Resistance:

Used a multimeter to measure motor coil resistance – all appear normal.
Firmware & Config:

Running the latest Duet firmware.
Checked M906 and M913 settings to ensure appropriate current levels.
Questions:
What could be causing these phase A/B disconnection warnings?
Could this be a Duet 6HC hardware issue, or is it more likely a wiring problem?
Would adjusting M906 (motor current) or M913 (motor reduction during idle) help?
Has anyone else experienced similar issues with a RatRig VCore 3?
Any help is greatly appreciated!

Thanks in advance!

@Phaedrux
Working on this again. Here is the last iteration of my Config.G:

; configuration file for Duet 3 Mini 5+ (firmware version 3.3) with Duet 3 Toolboard1LC, Rotating Magnet Filament Monitor
; executed by the firmware on start-up


; General preferences
M575 P1 S1 B57600                                                        ; enable support for PanelDue
G21                                                                      ; work in millimeters
G90                                                                      ; send absolute coordinates...
M83                                                                      ; ...but relative extruder moves
M550 P"duet3"                                                         	 ; set printer name
M669 K1                                                                  ; select CoreXY mode


; Tool board (CAN ID #121)
G4 S6                                                                    ; wait for tool board to start

; PanelDue Enable
M575 P1 S1 B57600


; Network
M552 S1                                                                  ; enable network
M586 P0 S1                                                               ; enable HTTP
M586 P1 S0                                                               ; disable FTP
M586 P2 S0                                                               ; disable Telnet


; Drives
M569 P0.0 S0 D3                                                          ; physical drive 0.0 goes forwards use stealthChop2
M569 P0.1 S0 D3                                                          ; physical drive 0.1 goes forwards use stealthChop2
M569 P0.2 S0 D3                                                          ; physical drive 0.2 goes forwards use stealthChop2
M569 P0.3 S1 D3                                                          ; physical drive 0.3 goes forwards use stealthChop2
M569 P0.4 S1 D3                                                          ; physical drive 0.4 goes forwards use stealthChop2
M569 P121.0 S1 D3                                                        ; physical drive 121.5 goes forwards use stealthChop2
M584 X0.4 Y0.3 Z0.0:0.1:0.2 E121.0                                       ; set drive mapping
M350 X16 Y16 Z16 E16 I1                                                  ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z800.00 E830.00                                        ; set steps per mm
M566 X400.00 Y400.00 Z6.00 E120.00 P1                                    ; set maximum instantaneous speed changes (mm/min)
M203 X10800.00 Y10800.00 Z1000.00 E3600.00                               ; set maximum speeds (mm/min)
M201 X3000.00 Y3000.00 Z100.00 E3600.00                                  ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z800 E800 I30                                           ; set motor currents (mA) and motor idle factor in percent
M84 S30                                                                  ; Set idle timeout


; Axis Limits
M208 X0 Y0 Z0 S1                                                         ; set axis minima
M208 X505 Y500 Z500 S0                                                   ; set axis maxima


; Endstops
M574 X1 S1 P"121.io2.in"                                                 ; configure switch-type (e.g. microswitch) endstop for high end on X via pin io2.in on toolboard
M574 Y2 S1 P"io6.in"                                                     ; configure switch-type (e.g. microswitch) endstop for high end on Y via pin io6.in
M574 Z1 S2                                                               ; configure Z-probe endstop for low end on Z


; Z-Probe
M950 S0 C"121.io0.out"                                                   ; create servo pin 0 for BLTouch on tool board
M558 P9 C"121.io0.in" H5 F120 T6000 A5                                   ; set Z probe type to bltouch and the dive height + speeds on tool board
G31 P500 X-40 Y-30 Z0.9                                                ; set Z probe trigger value, offset and trigger height
M671 X-4.5:250:500 Y-4.52:500:-4.52 S5                                   ; define positions of Z leadscrews, 5mm maximum correction
M557 X20:280 Y20:280 P5                                                  ; define 5x5 mesh grid

; Bed Heater
M308 S0 Q10 P"temp0" Y"thermistor" T100000 B3950 A"Bed"                  ; configure sensor 0 as thermistor on pin temp0
M950 H0 C"out0" T0                                                       ; create bed heater output on out1 and map it to sensor 0
M307 H0 B0 S1.00                                                         ; disable 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

																		 ; Mosquito Magnum+ Separate Heaters Single Tool (Two Sensors)

; Two Temperature Sensors
M308 S1 P"temp2" Y"pt1000" A"RightTemp" 						 	 	 ;Pt1000 located in right side of hot block
M308 S2 P"temp1" Y"pt1000" A"LeftTemp" 								 	 ;Pt1000 located in left side of hot block


; Define Mosquito Magnum+ heaters
M950 H1 C"out2" T1 														 ;Single Heater 
M950 H2 C"out3" T1 														 ;Second Heater

; Define Monitor Temperature Sensor
M143 H1 P1 S450 T2 A0
M143 H2 P1 S450 T2 A0

;Mosquito Magnum+ Max Temperatures
M143 H1 S450
M143 H2 S450

;Tool Definition Mosquito Magnum+
;M563 P0 D0 H1:2 S"Mosquito Magnum+" F1 									 ;Define Mosquito Magnum+ Tool
;T0 																		 ;Set tool 0 as active tool
;G10 P0 S0:0 R0:0 														 ;Set tool operating and standby temperatures

;; Run Bed PID Tune!! Below is an example for a 300x300 bed
;; M307 H0 A303.1 C356.7 D1.4 S1.00 V24.0 B0
;; Run Heater PID Tune!! 
;; M307 H1 A751.5 C196.6 D4.7 S1.00 V23.9 B0

; Fans
M950 F0 C"out4" Q300													 ; create fan 0 on pin out1 on tool board and set its frequency
M106 P0 C"Watercooling Fan" S1 H1 T45                                    ; set fan 0 value. Thermostatic control is turned on
M950 F1 C"121.out2" Q500                                                 ; create fan 1 on pin out2 on tool board and set its frequency
M106 P1 C"Layer Fan" S1 H-1                                              ; set fan 1 value. Thermostatic control is turned off


; Tools
M563 P0 S"Mosquito Magnum+" D0 H1:2 F1                                   ; define tool 0 with extruder drive 0 heater 1 and fan 1
G10 P0 X0 Y0 Z0                                                          ; set tool 0 axis offsets
G10 P0 R0 S0                                                             ; set initial tool 0 active and standby temperatures to 0C
M302 S180 R180                                                           ; allow extrusion starting from 180C and retractions already from 180C


; Accelerometer
M955 P121.0 I12                                                          ; Accelerometer on tool board, oriented counter-clockwise 90


; Filament Monitor
M591 D0 P3 C"121.io1.in" S1 R70:130 L24.8 E3.0                           ; Duet3D rotating magnet sensor for extruder drive 0 is connected to io1.in on tool board,
                                                                         ; enabled, 70% to 130% tolerance, sensitivity 24.8mm.rev, 3mm detection length

; Custom settings
M404 N1.75 D0.4                                                          ; set filament width and nozzle diameter

T0 																		 ;Set tool 0 as active tool

@Phaedrux

I’ll find my config but when I was testing I was manually running commands to test the extruder. Even when not attached to the hotend it was not working.

@phaedrux (https://forum.duet3d.com/topic/26885/so-close-extruder-connected-to-toolboard-won-t-budge?_=1665495044262)

As of now, no luck. Maybe I can use one of the mainboards stepper drivers to confirm the extruder drive works.

What is warranty like? I have no successfully been able to get my Toolboard to move my extruder motor at all.

@dc42 Windings are correct. Plug seems good enough after re-crimping. Going to attempting to see if it will drivee a different stepper. How do I get the toolboard warrantied if it is dead? It's the only thing keeping this machine from running.

@phaedrux

Wiring looks as pretty good.

M98 P"config.g"
Error: M552: Network-related commands are not supported when using an attached Single Board Computer
CORS disabled
CORS disabled
CORS disabled
Accelerometer 121:0 with orientation 12 samples at 1344Hz with 10-bit resolution

@phaedrux

Alright! Doing a lot better. I am getting communication and no errors now. Only issue now is I am only getting vibrations and no movement from any extruder commands.

@phaedrux I ended up redoing the firmware as I was having communication issues. This might be the source of my issues.

@rjenkinsgb Sadly, 'black and green' and 'red and green' are the correct connections. Just tested