Extruder engines do not work
Kitkat last edited by
For 2 weeks my printer with Duet Wifi finished. And he really works very well. But since 4 days both extruder engines Drive 3 / Drive 4 (Nema 17HS08-1004S) work no longer. Connected to X Drive 0 and Y Drive 1 they work. They are also not heated or make noises. The chips have no damage on the surface. All cables were reconnected with plugs.
The diagnosis is "temperature-warning standstill". What can it mean?
Strangely, it was only printed with Drive 4. The printer is operated with 24V. Where is the error?
Greetings from Hamburg
=== Diagnostics ===
Used output buffers: 1 of 32 (9 max)
=== Platform ===
Static ram used: 20320
Dynamic ram used: 73104
Recycled dynamic ram: 784
Stack ram used: 968 current, 3168 maximum
Never used ram: 33696
Last reset 00:46:29 ago, cause: power up
Last software reset code 0x0003, HFSR 0x00000000, CFSR 0x00000000, ICSR 0x00400000, BFAR 0xe000ed38, SP 0xffffffff
Spinning module during software reset: GCodes, available RAM 33576 bytes (slot 0)
Error status: 0
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest block write time: 0.0ms
MCU temperature: min 44.9, current 50.9, max 54.4
Supply voltage: min 23.8, current 24.0, max 24.2, under voltage events: 0, over voltage events: 0
Driver 0: stalled standstill
Driver 1: stalled standstill
Driver 2: stalled standstill
Driver 3: temperature-warning standstill
Driver 4: temperature-warning standstill
Date/time: 2017-09-24 22:21:04
Slowest main loop (seconds): 0.009888; fastest: 0.000000
=== Move ===
MaxReps: 0, StepErrors: 0, MaxWait: 0ms, 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
Probe change coordinates:
=== Heat ===
Bed heater = -1, chamber heater = -1
The temperature warning means that the drivers are hot, but not yet hot enough to trigger thermal shutdown. In normal operation, it will occur if you use a motor current exceeding about 2.0A without using a fan to cool the Duet.
What current do you have the extruder motors set to?
Kitkat last edited by
The current is 800 mA. I've removed all the cables it is still "temperature-warning standstill". And only both extruder chips will be very hot. Maybe both chips are damaged.
Please ask your supplier to repair or replace your Duet.