Tool Board Heater Tuning Leading To Faults
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@fcwilt It's a printer with 4 tools, just so happened that the 4th tool continued heating to ~120C before faulting (different M307 parameters). All 4 tools have the issue
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@fcwilt said in Tool Board Heater Tuning Leading To Faults:
Does a single heater faulting cause all heaters to display a fault or did all three heaters have to fault at the same time?
I can't quite tell from that photo, but is the heater block itself making contact with the body of the extruder, or is there an air gap exposing the heat break?
Is there any adjustability on the duct to lower it slightly to direct more air away from the block/nozzle itself?
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@phaedrux The Hemera tool and V6 hotend are assembled correctly.
There is no adjustability to the fan duct, but the ducting is aimed down to the nozzle. It's a fan duct by Rene Jurack, evaluated by an aerodynamicist at BMW
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@kevinmar said in Tool Board Heater Tuning Leading To Faults:
@fcwilt It's a printer with 4 tools, just so happened that the 4th tool continued heating to ~120C before faulting (different M307 parameters). All 4 tools have the issue
When the fault occurs have you issued a M122 to see if anything related to the fault is reported?
Frederick
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m122 === Diagnostics === RepRapFirmware for Duet 3 MB6HC version 3.3 (2021-06-15 21:45:47) running on Duet 3 MB6HC v1.01 or later (SBC mode) Board ID: 08DJM-9P63L-DJ3T8-6JKDD-3SD6M-9V4Z9 Used output buffers: 1 of 40 (16 max) === RTOS === Static ram: 150904 Dynamic ram: 63832 of which 12 recycled Never used RAM 139444, free system stack 200 words Tasks: SBC(ready,5.3%,298) HEAT(delaying,0.0%,325) Move(notifyWait,0.0%,302) CanReceiv(notifyWait,0.1%,799) CanSender(notifyWait,0.0%,374) CanClock(delaying,0.0%,339) TMC(notifyWait,7.4%,93) MAIN(running,87.0%,922) IDLE(ready,0.1%,29), total 100.0% Owned mutexes: HTTP(MAIN) === Platform === Last reset 00:01:48 ago, cause: software Last software reset at 2021-08-20 13:46, reason: User, none spinning, available RAM 139444, slot 1 Software reset code 0x0012 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0044a000 BFAR 0x00000000 SP 0x00000000 Task SBC Freestk 0 n/a Error status: 0x00 Step timer max interval 134 MCU temperature: min 38.9, current 39.3, max 39.4 Supply voltage: min 24.0, current 24.1, max 24.1, under voltage events: 0, over voltage events: 0, power good: yes 12V rail voltage: min 12.1, current 12.1, max 12.2, under voltage events: 0 Heap OK, handles allocated/used 0/0, heap memory allocated/used/recyclable 0/0/0, gc cycles 0 Driver 0: position 0, standstill, reads 14442, writes 16 timeouts 0, SG min/max 0/0 Driver 1: position 0, standstill, reads 14442, writes 16 timeouts 0, SG min/max 0/0 Driver 2: position 0, standstill, reads 14443, writes 15 timeouts 0, SG min/max 0/0 Driver 3: position 0, standstill, reads 14447, writes 11 timeouts 0, SG min/max 0/0 Driver 4: position 0, standstill, reads 14443, writes 15 timeouts 0, SG min/max 0/0 Driver 5: position 0, standstill, reads 14445, writes 14 timeouts 0, SG min/max 0/0 Date/time: 2021-08-20 13:48:32 Slowest loop: 60.53ms; fastest: 0.04ms === Storage === Free file entries: 10 SD card 0 not detected, interface speed: 37.5MBytes/sec SD card longest read time 0.0ms, write time 0.0ms, max retries 0 === Move === DMs created 125, maxWait 0ms, bed compensation in use: none, comp offset 0.000 === MainDDARing === Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === AuxDDARing === Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === Heat === Bed heaters = 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamberHeaters = -1 -1 -1 -1 Heater 0 is on, I-accum = 0.2 === GCodes === Segments left: 0 Movement lock held by null HTTP* is doing "M122" in state(s) 0 Telnet is idle in state(s) 0 File is idle in state(s) 0 USB is idle in state(s) 0 Aux is idle in state(s) 0 Trigger* is idle in state(s) 0 Queue is idle in state(s) 0 LCD is idle in state(s) 0 SBC is idle in state(s) 0 Daemon is idle in state(s) 0 Aux2 is idle in state(s) 0 Autopause is idle in state(s) 0 Code queue is empty. === CAN === Messages queued 1033, received 5285, lost 0, longest wait 2ms for reply type 6049, peak Tx sync delay 7, free buffers 49 (min 48), ts 545/544/0 Tx timeouts 0,0,0,0,0,0 === SBC interface === State: 4, failed transfers: 0, checksum errors: 0 Last transfer: 1ms ago RX/TX seq numbers: 3860/3860 SPI underruns 0, overruns 0 Disconnects: 0, timeouts: 0, IAP RAM available 0x2c83c Buffer RX/TX: 0/0-0 === Duet Control Server === Duet Control Server v3.3.0 Code buffer space: 4096 Configured SPI speed: 8000000Hz Full transfers per second: 35.84, max wait times: 5.8ms/0.0ms Codes per second: 1.10 Maximum length of RX/TX data transfers: 6116/716 -
Thanks for the M122 dump.
Sure would like to know what condition is causing the fault. I'm surprised that information is not being displayed somewhere.
You mentioned that one heater took longer to fault. Were you able to determine what settings were different that might be relevant?
Have you tried disabling the cooling fan to see if it is playing a role in the fault?
Frederick
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@fcwilt Yes, I've tried disabling the fan.
The heater that took longer to fault had different M307 parameters at that time -
@kevinmar said in Tool Board Heater Tuning Leading To Faults:
@fcwilt Yes, I've tried disabling the fan.
And it still faulted?
Perhaps @dc42 could explain what conditions can lead to a fault.
Frederick
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I was trying to point out that R, L and N are the only additional parameters for PT1000 devices.
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Was there any resolution to this?
I just ran tuning having swapped my V1 tool board for a V1.1 and fitting a new power supply and get the same thing the heater faults every time anywhere between 60 and 100 degrees. Replacing the new M307 parameters with the old works OK
