New duet wifi board; Z driver not working.

bluedust2

I have just set up the board to test all the hardware is working and I can't get a motor running on the z driver. The z driver is also hot to touch while in idle. I have checked motors that work on the x,y,e0,e1 drivers and they don't work on the z driver.

Is there anything else I can check?

Veti

are the jumpers installed on the second connector?

bluedust2

yes jumpers are on the zb connector.

dc42

It sounds like a faulty driver, but please check the following:

Does the Z driver chip run hot even with no motor connected?
Have you checked that the Z motor connector pins on the underside of the Duet are not shorting against anything metallic underneath the Duet?
When you send M122, what status does it report for driver 2?

bluedust2

@dc42 No shorting, I have it in an abs enclosure bottom half to keep it safe.

The z driver chip was hot even when no motor was connected so I put a small heatsink on it, no improvement.

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 2.02(RTOS) running on Duet WiFi 1.02 or later
Board ID: 08DGM-917DA-G4MS4-6JTD2-3SN6N-TTXH9
Used output buffers: 3 of 20 (7 max)
=== RTOS ===
Static ram: 25524
Dynamic ram: 98832 of which 0 recycled
Exception stack ram used: 280
Never used ram: 6436
Tasks: NETWORK(ready,680) HEAT(blocked,832) MAIN(running,3844) IDLE(ready,200)
Owned mutexes:
=== Platform ===
Last reset 00:00:33 ago, cause: power up
Last software reset at 2019-11-25 19:04, reason: User, spinning module GCodes, available RAM 6344 bytes (slot 2)
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 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 24.4, current 28.3, max 28.4
Supply voltage: min 24.0, current 24.1, max 24.3, 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: 2019-11-25 23:31:05
Cache data hit count 117292142
Slowest loop: 5.81ms; 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: 240, MaxWait: 0ms, Underruns: 0, 0
Scheduled moves: 0, completed moves: 0
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
Heater 1 is on, I-accum = 0.0
=== 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: 15.83ms; 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 84:0d:8e:b2:f2:32
WiFi Vcc 3.36, reset reason Turned on by main processor
WiFi flash size 4194304, free heap 25720
WiFi IP address 192.168.178.86
WiFi signal strength -53dBm, reconnections 0, sleep mode modem
Socket states: 0 0 0 0 0 0 0 0

dc42

I am sorry, if the Z driver gets hot with no motor connected to it, and nothing is shorting against the Z motor terminals, then the Z driver has failed. As your board is new and assuming it's a genuine Duet, you are entitled to a replacement under warranty, so please contact your supplier.