Heaters turn off and motors stay on and get HOT

[scottjvincent]

So I recently installed the E3 turbo on my Ender 3 V2 and it has been working great everything works until I tried to print this carbon fiber filled polycarbonate blend.... 90 c bed temperature and 260c nozzle temperature..... Printed two or three things and everything was fine but then on the last one I came out and looked at the printer and the motors were humming it had stopped printing the heaters were off but the motors were just hotter than a bullet..... Don't know why the heaters turned off out of the blue ,using octoprint it says thermal runaway and you can see on the graph the bed heater and the nozzle heater just start cooling down out of the blue..... BTT TFT50 screen says thermal runaway also needs printer reset... But the motors are still active and super super hot..... I don't have a clue what's going on... I read the other post that talks about ESD.... But so far it seems everything is fine until I try to print with higher bed and nozzle temperatures than normal..... It's happened two times now and both times were printing the polycarbonate....

First thoughts is is there a way to go in the firmware and make it so the motors turn off if it faults out for thermal run away??? That doesn't fix the problem but at least it won't burn my printer up when it does fault out.

I have the Ender 3 V2 silent fan upgrade so the PSU and the motherboard have 92 mm fans, so I'm assuming the motherboard isn't overheating?? And no I have not checked grounds on any of the motors yet because it seems like it's only doing it when printing that polycarbonate.....

Any help would be great Thanks Scott V.

[scottjvincent]

So I just made the firmware changes to show chamber temperature which would be the motherboard temperature turned the stepper motor amps down from the default 800mAh to 600 mAh And change the bed thermal runaway settings up to 40 seconds and 4° swing...... Don't think that last one's going to do anything but since I was there I thought I'd try it...

So now I can at least see how hot the motherboard gets...... What temperature would be overheating for the motherboard?

Thanks Scott V.

[scottjvincent]

So i got it to do it again and the terminal in octoprint says this.

Recv: E driver error detected: 0x1075773584.0000000000000000 Recv: coil short circuit Recv: X Y Z E Recv: Address 0 0 0 0 Recv: Enabled true true true true Recv: Set current 800 800 800 800 Recv: RMS current 1436 1436 1436 1436 Recv: MAX current 2025 2025 2025 2025 Recv: Run current 25/31 25/31 25/31 25/31 Recv: Hold current 12/31 12/31 12/31 12/31 Recv: CS actual 31/31 31/31 31/31 31/31 Recv: PWM scale Recv: vsense 0=.325 0=.325 0=.325 0=.325 Recv: stealthChop true true true true Recv: msteps 8 8 8 8 Recv: interp true true true true Recv: tstep 667 667 21344 7391 Recv: PWM thresh. Recv: [mm/s] Recv: OT prewarn false false false false Recv: triggered Recv: OTP false false false false Recv: pwm scale sum 136 79 125 36 Recv: pwm scale auto 78 24 89 0 Recv: pwm offset auto 36 36 36 36 Recv: pwm grad auto 61 62 15 14 Recv: off time 3 3 3 3 Recv: blank time 36 36 36 36 Recv: hysteresis Recv: -end -3 -3 -3 -3 Recv: -start 6 6 6 6 Recv: Stallguard thrs 0 0 0 0 Recv: uStep count 415 590 96 57 Recv: DRVSTATUS X Y Z E Recv: sg_result 70 86 2 6 Recv: stst * * * * Recv: olb * * Recv: ola Recv: s2gb Recv: s2ga Recv: otpw Recv: ot Recv: 157C Recv: 150C Recv: 143C Recv: 120C Recv: s2vsa * Recv: s2vsb Recv: Driver registers: Recv: X 0x40:1F:00:00 Recv: Y 0x40:1F:00:80 Recv: Z 0x40:1F:00:00 Recv: E 0x40:1F:00:90 Recv: Recv: Recv: echo:Driver error Recv: Error:Printer halted. kill() called! Changing monitoring state from "Printing" to "Error" Send: M112 Send: N2983 M11217 Send: N2984 M104 T0 S022 Send: N2985 M140 S0*83 Changing monitoring state from "Error" to "Offline after error" Connection closed, closing down monitor

Any ideas?

[LTSpenny]

Hey so I’m running an ender 3 max and just had an issue where my motors got hot as well. They then stopped being able to torque or turn if there’s any resistance. Happened out of the blue after printing for a few weeks. Vref for my z was at 560 running duals. If I find out anything else I’ll follow up. Running marlin 2. Bug fix. No thermal runaway triggered on mine. Printing at PLA temps 60 bed 205 nozzle.

[radek8]

Can you turn off the printer jerk, and enable Junction deviation?