Duet2 Wifi reboots on homing Z

BrooksT

I have a printer that was working fine on 2.02rc2 (I think), but after upgrading to 2.05 it always reboots when I try to home the Z axis. The axis does move for about 1/2 of a second, then the Duet reboots. M122 dump below. Interesting, sometimes it says "spinning module GCodes" and sometimes it says "spinning module Platform".

12/14/2019, 12:04:51 PM M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.05 running on Duet WiFi 1.02 or later
Board ID: 08DGM-9T6BU-FG3S4-6J1FD-3S46R-KVQBD
Used output buffers: 1 of 24 (7 max)
=== RTOS ===
Static ram: 25712
Dynamic ram: 93348 of which 0 recycled
Exception stack ram used: 272
Never used ram: 11740
Tasks: NETWORK(ready,628) HEAT(blocked,1232) MAIN(running,3800) IDLE(ready,160)
Owned mutexes:
=== Platform ===
Last reset 00:00:41 ago, cause: software
Last software reset at 2019-12-14 12:04, reason: Watchdog timeout, spinning module GCodes, available RAM 11128 bytes (slot 2)
Software reset code 0x4053 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x1441f014 BFAR 0xe000ed38 SP 0x2001fecc Task 0x5754454e
Stack: 00419243 004190dc 01000027 20007fd8 00000000 0117b26c 200023b0 00000000 20007fd8 2000c888 20007fd8 20007fd8 2000c888 01125aed 20000660 00004e6f 00419243 2000ba94 2000c888 20007fd8 20007fd8 40090000 01125aed
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 20.9, current 21.6, max 21.7
Supply voltage: min 24.0, current 24.0, max 24.1, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: standstill, SG min/max not available
Driver 1: standstill, SG min/max not available
Driver 2: standstill, SG min/max not available
Driver 3: standstill, SG min/max not available
Driver 4: standstill, SG min/max not available
Date/time: 2019-12-14 12:04:51
Cache data hit count 116647696
Slowest loop: 5.91ms; fastest: 0.07ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Move ===
Hiccups: 0, FreeDm: 160, MinFreeDm: 160, MaxWait: 0ms
Bed compensation in use: none, comp offset 0.000
=== DDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0
=== Heat ===
Bed heaters = -1 -1 -1 -1, chamberHeaters = -1 -1
=== GCodes ===
Segments left: 0
Stack records: 1 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: 15.37ms; fastest: 0.01ms
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 cc:50:e3:27:40:d9
WiFi Vcc 3.42, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 22816
WiFi IP address 10.23.17.218
WiFi signal strength -55dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0

Veti

post your config and homing scripts.

Veti

@BrooksT said in Duet2 Wifi reboots on homing Z:

Software reset code 0x4053

Usb active
Bus error.
G Code was active

do you have usb connected?

BrooksT

No USB connected.

BrooksT

Config file:

;3DP-D Super 7 1:20 Z
M111 S0 ; Debug off
M550 Psuper9 ; Machine name and Netbios name (can be anything you like)
M551 PfrnkPOTfrnk ; Machine password (used for FTP)

;*** If you have more than one Duet on your network, they must all have different MAC addresses, so change the last digits
;networking
M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0xED ; MAC Address
M552 S1 ; start wifi S2 OR S1 network
M552 P10.23.17.218 ; static IP
M553 P255.255.255.0 ; netmask
M554 P10.23.17.254 ; gateway

;Settings
M555 P2 ; Set output to look like Marlin
G21 ; Work in mm
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves

;Motor Direction
M584 X5 Y6 Z7 E9:3 ; Set drive mapping Axis and motor configuration
M569 P5 S0 R0 T4 ; Drive 0 goes forwards X
M569 P6 S0 R0 T4 ; Drive 1 goes forwards Y
M569 P7 S1 R0 T4 ; Drive 2 goes reverse Z
M569 P9 S1 R0 T4 ; Drive 6 goes reverse E
M569 P3 S0 ; Drive 4 in reverse - E1

;Motor Ranges
M574 X2 Y1 Z2 S0 ;Endstop configuration
M208 X420 Y360 Z455 ; set axis maxima and high homing switch positions (adjust to suit your machine) (Z was 480) (386.5 = plaster bat)
M208 X0 Y0 Z0 S1 ; set axis minima and low homing switch positions (adjust to make X=0 and Y=0 the edges of the bed)

;Motor Speeds
M92 X71 Y71 ; Set axis steps per unitX72.70 Y70.85
M350 X16 Y16 Z16 E16:16 I1 ; Set 1x microstepping with interpolation
M92 Z7586 E42:805 ; Steps/mm for Z and E WAS 8 (E was 42:805)
M906 X0 Y0 Z0 E0:700 I30 ; Set motor currents (mA) and increase idle current to 60%
M201 X1000 Y1000 Z1000 E3000:250.00 ; Accelerations (mm/s^2) (Z WAS 3000)
M203 X6000 Y6000 Z3500 E10000:1200.00 ; Maximum speeds (mm/min)
M566 X500 Y500 Z1000 E3000:120.00 ; Maximum instant speed changes mm/minute (Z WAS 3000)

;M581 X Y Z T0 S1 C1 ;Configure external trigger

;Tool definitions
; Tools
;M563 P0 D0 H1 F1:2 ; Define tool 0 - use extruder 0, heater 1, fan 1, and fan 2

;M563 P0 D0 ; Define or remove a tool
G10 P1 ; Set tool number 1
T0 ; Select tool 0
M302 P1 ; Allow cold extrusion
M140 H-1 ; Bed Off

;Misc
M83 ; Set extruder to relative mode
M302 P1 ; Allow cold extrudes

Tools;
M563 P1 S"Clay" D0 ; Define tool 1
M563 P2 S"plastic" D1 H2 ; Define tool 2
G10 P1 X0 Y0 Z0 ; Set tool 1 axis offsets
G10 P2 X134 Y-18 Z0 ; Set tool 2 axis offsets
M106 P0 S0.3 I0 F500 H1 T45 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on

;Extruder 2 (plactic
M305 P2 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 2
M143 H2 S280 ; Set temperature limit for heater 2 to 280C
M106 P1 S0 ; Turn off fan by default

;Heaters
;M303 H2 S240
M307 H2 A300 C140 D5.5 B0 S0.5

BrooksT

homez.g:

G91 ;Set to Relative Positioning
G1 S1 Z600 F6000 ;Move Z rail to limit switch until pressed
G1 S2 Z-3 F250 ;Back off Z rail from limit switch a small amount
G1 S1 Z10 F150 ;Move Z rail to limit switch slowly
G90 ;Absolute position

Veti

@BrooksT said in Duet2 Wifi reboots on homing Z:

M584 X5 Y6 Z7 E9:3 ; Set drive mapping Axis and motor configuration

why do you have a duex5 if yo only use 5 drivers?

can you post a picture of the power connection of both duet and duex and psu?

BrooksT

Duex5 is for future upgrades. It's in an enclosure so I can't easily get a pic.

FWIW, working fine after reverting to firmware 2.04.

Veti

did you follow the wiring guide?
https://duet3d.dozuki.com/Wiki/Duex2_and_Duex5_Features#Section_Wiring

dc42

@BrooksT said in Duet2 Wifi reboots on homing Z:

M92 Z7586 E42:805 ; Steps/mm for Z and E WAS 8 (E was 42:805)
M906 X0 Y0 Z0 E0:700 I30 ; Set motor currents (mA) and increase idle current to 60%
M201 X1000 Y1000 Z1000 E3000:250.00 ; Accelerations (mm/s^2) (Z WAS 3000)
M203 X6000 Y6000 Z3500 E10000:1200.00 ; Maximum speeds (mm/min)

I think it is triggered by the combination of your very high Z steps/mm in M92 and your high Z movement speed in M203. 3500mm/min is 58.33mm/sec, times 7586 steps/mm gives a step rate of 442.5 kHz, which is higher than the Duet can manage. It should be inserting hiccups to reduce the Z speed, but it looks like that mechanism isn't working properly. Try reducing the max Z speed from 3500 to 600.

Phaedrux

What kind of a Z axis is this to have such high steps per mm?

BrooksT

@dc42 Thanks... will do!

This is a 3D Potter Super 9. All of the axes use a worm gear reduction on closed loop steppers. The steppers have settings for pulses per rotation; it may be possible for me to get the same movement with fewer steps by changing multipliers.