to ground

Swanny

To avaid a lot of confusing I placed a new extruder motor en replaced the wiring.

It has the same result:

The extrudermotor gives an error after about 30/60 seconds.
if it takes a little bit longer now a fase B error is also displayed.
Warning: motor phase B may be disconnected reported by driver(s) 3
The extruder motor switches in about 2-4 times a second from CC to CCC.
My other 3 extruders on the toolchanger act normally

What is the solution?

Phaedrux

There are several unanswered questions from your previous thread. Can you answer those?

What Duet board is this? Can you provide the results of M122 and M98 "P"config.g" please?

Please copy and paste the text contents of your config.g into a post.

Swanny

@phaedrux
on the command M98 P"config.g" i get:
M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled

M122.docx

config.g.docx

Phaedrux

![707c34ee-7ee5-4b3e-abfe-a7d2c3bf9369-image.png](/assets/uploads/files/1625682414724-707c34ee-7ee5-4b3e-abfe-a7d2c3bf9369-image.png) 19:18:25M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.02(RTOS) running on Duet WiFi 1.02 or later + DueX5
Board ID: 08DGM-9T6BU-FG3SJ-6J1FA-3S06Q-1BWZD
Used output buffers: 3 of 20 (12 max)
=== RTOS ===
Static ram: 25524
Dynamic ram: 99652 of which 0 recycled
Exception stack ram used: 512
Never used ram: 5384
Tasks: NETWORK(ready,560) HEAT(blocked,1232) MAIN(running,3788) IDLE(ready,200)
Owned mutexes:
=== Platform ===
Last reset 00:02:07 ago, cause: power up
Last software reset at 2021-07-04 22:10, reason: User, spinning module GCodes, available RAM 5384 bytes (slot 0)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0441f000 BFAR 0xe000ed38 SP 0xffffffff Task 0x4e49414d
Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms, max retries 0
MCU temperature: min 25.2, current 31.2, max 31.4
Supply voltage: min 23.8, current 23.9, max 24.1, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max 0/1023
Driver 1: standstill, SG min/max 0/1023
Driver 2: standstill, SG min/max 0/1023
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Driver 5: standstill, SG min/max not available
Driver 6: standstill, SG min/max not available
Driver 7: standstill, SG min/max 31/446
Driver 8: standstill, SG min/max not available
Driver 9: standstill, SG min/max not available
Date/time: 2021-07-07 19:18:24
Cache data hit count 464716880
Slowest loop: 5.70ms; fastest: 0.07ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0
=== Move ===
Hiccups: 0, StepErrors: 0, LaErrors: 0, FreeDm: 240, MinFreeDm: 238, MaxWait: 62241ms, Underruns: 0, 0
Scheduled moves: 20, completed moves: 20
Bed compensation in use: none
Bed probe heights: 0.000 0.000 0.000 0.000 0.000
=== Heat ===
Bed heaters = 0 -1 -1 -1, chamberHeaters = -1 -1
=== GCodes ===
Segments left: 0
Stack records: 3 allocated, 0 in use
Movement lock held by null
http is idle in state(s) 0
telnet is idle in state(s) 0
file is idle in state(s) 0
serial is idle in state(s) 0
aux is idle in state(s) 0
daemon is idle in state(s) 0
queue is idle in state(s) 0
autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 15.68ms; fastest: 0.00ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0) Telnet(0)
HTTP sessions: 1 of 8
- WiFi -
Network state is running
WiFi module is connected to access point
Failed messages: pending 0, notready 0, noresp 0
WiFi firmware version 1.23
WiFi MAC address 60:01:94:2e:a0:64
WiFi Vcc 3.47, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 23352
WiFi IP address 192.168.178.16
WiFi signal strength -48dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0

![8b295c75-9b60-432c-af23-55da56a42fa3-image.png](/assets/uploads/files/1625682429422-8b295c75-9b60-432c-af23-55da56a42fa3-image.png) ; Configurat; Configuration file for Duet WiFi / Ethernet
; executed by the firmware on start-up

; General preferences
M111 S0 						; Debugging off
G21 							; Work in millimetres
G90 							; Send absolute coordinates...
M83 							; ...but relative extruder moves
M555 P2 						; Set firmware compatibility to look like Marlin

; Network
M550 P"ToolChanger" 					; Set machine name
;M587 S"Ziggo5687440" P"117WilmaAd117"				; WiFi Settings
;M552 S1 P"Ziggo5687440"					; Enable WiFi Networking
M552 S1							; Enable Networking
M586 P0 S1 						; Enable HTTP
M586 P1 S0 						; Disable FTP
M586 P2 S0 						; Disable Telnet

M667 S1 						; Select CoreXY mode	

; Endstops
M574 X1 Y1 S3 						; Set X / Y endstop stall detection
M574 Z1 S2 						; Set Z endstop probe
M558 P7 X0 Y0 Z2 H3 F360 I0 T20000 			; Set Z probe type to switch, the axes for which it is used and the dive height + speeds
G31 P200 X0 Y0 Z0	 				; Set Z probe trigger value, offset and trigger height
M557 X10:290 Y20:180 S40 				; Define mesh grid

; Drive direction
M569 P0 S0 						; Drive 0 X
M569 P1 S0 						; Drive 1 Y
M569 P2 S1 						; Drive 2 Z
M569 P3 S0 						; Drive 3 E0
M569 P4 S0 						; Drive 4 E1
M569 P5 S1 						; Drive 5 E2
M569 P6 S1 						; Drive 6 E3
M569 P7 S0 						; Drive 7 COUPLER
M569 P8 S0 						; Drive 8 UNUSED
M569 P9 S0 						; Drive 9 UNUSED

M584 X0 Y1 Z2 C7 E3:4:5:6 				; Apply custom drive mapping
M208 X-35:328.5 Y-49:243 Z0:300 C0:500 S0 		; Set axis maxima & minima
M350 E8:8:8:8 C8 I0 					; Configure microstepping without interpolation
M350 X16 Y16 Z16 I1					; Configure microstepping with interpolation
M92 X100 Y100 Z1600 C100 E417:417:417:417		; Set steps per mm
M566 X900 Y900 Z30 C2 E3000:3000:3000:3000				; Set maximum instantaneous speed changes (mm/min)
M203 X35000 Y35000 Z1200 C5000 E5000:5000:5000:5000	; Set maximum speeds (mm/min)
M201 X6000 Y6000 Z400 C500 E2500:2500:2500:2500		; Set accelerations (mm/s^2)
M906 X2000 Y2000 Z1330 C400 E1680:1680:1680:1680 I30 	; Set motor currents (mA) and motor idle factor in percent
M84 S120 												; Set idle timeout

;Stall Detection
M915 C S5 F0 H200 R4700					; Coupler

;Stall Detection
M915 X Y S5 F0 H400 R4700				; X / Y Axes

; Heaters
M305 P0 T100000 B4138 C0 				; Set thermistor 
M143 H0 S225 						; Set temperature limit for heater 0 to 225C

M305 S"T0" P1 R4700 T100000 B4388 			; Set thermistor
M143 H1 S300 						; Set temperature limit for heater 1 to 300C

M305 S"T1" P2 R4700 T100000 B4388			; Set thermistor
M143 H2 S300 						; Set temperature limit for heater 2 to 300C

M305 S"T2" P3 R4700 T100000 B4388			;Set thermistor
M143 H3 S300 						; Set temperature limit for heater 3 to 300C

M305 S"T3" P4 R4700 T100000 B4388 			; Set thermistor 
M143 H4 S300 						; Set temperature limit for heater 4 to 300C


; Tools
M563 P0 S"T0" D0 H1 					; Define tool 0
G10 P0 X0 Y0 Z0 					; Reset tool 0 axis offsets
G10 P0 R0 S0 						; Reset initial tool 0 active and standby temperatures to 0C

M563 P1 S"T1" D1 H2 					; Define tool 1
G10 P1 X0 Y0 Z0 					; Reset tool 1 axis offsets
G10 P1 R0 S0 						; Reset initial tool 1 active and standby temperatures to 0C

M563 P2 S"T2" D2 H3 F3					; Define tool 2
G10 P2 X0 Y0 Z0 					; Reset tool 2 axis offsets

G10 P2 R0 S0 						; Reset initial tool 2 active and standby temperatures to 0C

M563 P3 S"T3" D3 H4 					; Define tool 3
G10 P3 X0 Y0 Z0 					; Reset tool 3 axis offsets
G10 P3 R0 S0 						; Reset initial tool 3 active and standby temperatures to 0C

; Fans
M106 P0 S0						; UNUSED
M106 P1 S255 H1 T70					; T0 HE
M106 P2 S0						; T0 PCF
M106 P3 S255 H2 T70 					; T1 HE
M106 P4 S0						; T1 PCF 
M106 P5 S255 H3 T70 					; T2 HE 
M106 P6 S0						; T2 PCF
M106 P7 S255 H4 T70					; T3 HE
M106 P8 S0						; T3 PCF

M593 F50						; cancel ringing at 50Hz (https://forum.e3d-online.com/threads/accelerometer-and-resonance-measurements-of-the-motion-system.3445/)
;M376 H15						; bed compensation taper

;tool offsets
G10 P0 X-9 Y39 Z-4.470					; T0
G10 P1 X-8.75 Y38.85 Z-4.84				; T1
G10 P2 X-9.25 Y39.1 Z-4.510				; T2
G10 P3 X-8.7 Y38.9 Z-4.625				; T3

;deselect tools
T-1

;M572 D0 S0.2 						; pressure advance T0
;M572 D1 S0.2 						; pressure advance T1
;M572 D2 S0.2 						; pressure advance T2
;M572 D3 S0.2 						; pressure advance T3

Phaedrux

If you switch one of your other working extruders wiring to connect to driver 3 do the errors still occur?

Swanny

@phaedrux
going to try that this weekend.

Swanny

@swanny

wiring switched. behavior and error the same one the other working extruder.
So changing the wiring replaces the error to the other extruder but the same error message still occurs.

Phaedrux

I'm sorry, but I don't understand your sentences.

You switched the wiring, but did the problem followed the motor or the driver?

What is the exact error message?

Swanny

@phaedrux

I switched the wiring from extruder 1 (the problem) to extruder 2 and the wiring from extruder 2 to extreuder one.
By testing both extruders extruder one workt perfect again.
extruder 2 had the problem now.
The error message was the same.
so the problem followed the extrudermotor.
error message: short-to-ground reported by driver(s) 3

dc42

@swanny it sounds as though the motor or the cable is shorted, or the phases are not correct.

Phaedrux

So no matter which motor you have connected to driver 3, you still get the short to ground error for driver 3?

Yet you say the problem followed the extruder motor, not the driver?

Use this to verify your motor phases are wired correctly.

https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors#Section_Identifying_the_stepper_motor_phases

Swanny

@phaedrux
The extruder motor has a connector and has been delivered with ready wiring with connectors installed.
making a mistake is not possible.
and indead always the same error: short to ground error for driver 3

Phaedrux

@swanny said in to ground:

The extruder motor has a connector and has been delivered with ready wiring with connectors installed.
making a mistake is not possible.

If you think that, you'll find troubleshooting very difficult.

There is no standard for how stepper motors are wired even when they come from manufacturer with wires and connectors. Different boards have different pinouts. And believe it or not, mistakes can be made by the manufacturers themselves. The only way to be sure is to measure and identify the phases yourself.

@swanny said in to ground:

so the problem followed the extrudermotor.
error message: short-to-ground reported by driver(s) 3

Did the problem follow the extruder motor, or did it stay on driver 3? Which is it?

Swanny

@phaedrux
The problem did follow the extruder motor. The reported error was the same.
about wiring: it was working perfect for a long period. So the wiring cannot be the problem.

Phaedrux

When and where did you purchase your Duet?

Swanny

@phaedrux
E3D-Online
Unit 35A, Monument Bus Pk
Chalgrove, Oxfordshire
OX44 7RW
United Kingdom

Phaedrux

@swanny Recently?

Swanny

january 2020

droftarts

@swanny said in to ground:

about wiring: it was working perfect for a long period. So the wiring cannot be the problem.

Please don't assume that, particularly on wiring that is moving, ie going to an extruder drive mounted on moving axes. Over time the continual bending of the wire will fatigue and then break it. However, breaks may only happen in particular positions, which causes the fault to be intermittent. Look at points where the wiring is bending on one side, and stationary on the other, often where the wire goes into a crimp. If you've already replaced all the wiring, replace the motor (wiring can come adrift internally).

If the fault follows the motor and wiring, it's not the Duet, it's the motor or wiring. Moving wiring needs to be treated as consumable.

january 2020

Unfortunately out of warranty; warranty period is 1 year. See our warranty terms here: https://www.duet3d.com/warranty

Ian

Swanny

@droftarts

The europian warranty is 2 years.
the wiring and extrudermotor have been replaced.
so the story about shafing and bending is not in place.
The same error (and thats coming from the duet) when switching the extruder motor happend.
the motor stering from extruder one is connected to extruder 2 from the duet. causes motor 2 to fail so saying that it is the motor or motor wiring is false.
If you sell in europe you have to follow the europian rules.

I like to here from you.