Marlin - Thermal Runaway - Discount easy controller Hi all, today I mounted Discount easy controller for printing from SD card, but some new problem occured. Printing is halted and lcd screen shows: THERMAL RUNAWAY PRINTER HALTED Please reset Do you know what it causes ? There is also some setting in cotroller for PID ? Is this PID setting over Marlin PID setting ? When I used USB everything was fine. https://reprap.org/forum/read.php?1,786827,786827#msg-786827 Wed, 16 Sep 2026 08:51:31 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,786827,787328#msg-787328 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,787328#msg-787328 Arnold General Sat, 09 Sep 2017 03:51:26 -0400 https://reprap.org/forum/read.php?1,786827,787122#msg-787122 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,787122#msg-787122 I works fine when heatbed has 70-75°C. 80°C and more has:

Error:Thermal Runaway, system stopped! Heater_ID: bed

This is values in Marlin I have:

#if ENABLED(THERMAL_PROTECTION_BED)
#define THERMAL_PROTECTION_BED_PERIOD 20 // Seconds
#define THERMAL_PROTECTION_BED_HYSTERESIS 2 // Degrees Celsius

/**
* Whenever an M140 or M190 increases the target temperature the firmware will wait for the
* WATCH_BED_TEMP_PERIOD to expire, and if the temperature hasn't increased by WATCH_BED_TEMP_INCREASE
* degrees, the machine is halted, requiring a hard reset. This test restarts with any M140/M190,
* but only if the current temperature is far enough below the target for a reliable test.
*
* If you get too many "Heating failed" errors, increase WATCH_BED_TEMP_PERIOD and/or decrease
* WATCH_BED_TEMP_INCREASE. (WATCH_BED_TEMP_INCREASE should not be below 2.)
*/
#define WATCH_BED_TEMP_PERIOD 120 // Seconds
#define WATCH_BED_TEMP_INCREASE 2 // Degrees Celsius]]> Arnold General Thu, 07 Sep 2017 17:52:31 -0400 https://reprap.org/forum/read.php?1,786827,787115#msg-787115 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,787115#msg-787115
Have been trying not to say this, Thou here goes My 24V volt 3D Printer was having problems and it had to do with the noise the controller was putting out.
Injecting the signals into the adjacent LCD/SD wires causing similar effects. You are may not be seeing a true THERMAL RUNAWAY it may be just noise.
Could you disconnect the LCD place it as far away from the Printer as possible. This will let you know if it is because of noise being injected onto the ribbon cables.

I had to reroute my ribbon cables to bypass the Controller Stepper motor drivers. Then all of my THERMAL RUNAWAY troubles went away.

As seen in Image below, normally the LCD is mounted on the Top T-Slot

[attachment 97881 3DP12LCDinFront.jpg]]]> Roberts_Clif General Thu, 07 Sep 2017 17:19:44 -0400 https://reprap.org/forum/read.php?1,786827,787076#msg-787076 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,787076#msg-787076 Arnold General Thu, 07 Sep 2017 14:23:38 -0400 https://reprap.org/forum/read.php?1,786827,787070#msg-787070 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,787070#msg-787070 Arnold General Thu, 07 Sep 2017 14:00:21 -0400 https://reprap.org/forum/read.php?1,786827,787059#msg-787059 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,787059#msg-787059 If not around 24v you may have to get larger silicone power wires.]]> Roberts_Clif General Thu, 07 Sep 2017 13:38:40 -0400 https://reprap.org/forum/read.php?1,786827,787053#msg-787053 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,787053#msg-787053 300x300 on aluminium plate and connected to 24V 15A Power supply.]]> Arnold General Thu, 07 Sep 2017 13:06:36 -0400 https://reprap.org/forum/read.php?1,786827,787041#msg-787041 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,787041#msg-787041
Make sure you dont have a fan in the room going. I cant print ABS temps with my ceiling fan turned on because the bed heater cannot keep up with it blowing.]]> Floyd General Thu, 07 Sep 2017 12:02:46 -0400 https://reprap.org/forum/read.php?1,786827,787037#msg-787037 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,787037#msg-787037 Proterface shows this:

Error:Thermal Runaway, system stopped! Heater_ID: bed
[ERROR] Error:Thermal Runaway, system stopped! Heater_ID: bed

Error:Printer halted. kill() called!
[ERROR] Error:Printer halted. kill() called!]]> Arnold General Thu, 07 Sep 2017 11:52:47 -0400 https://reprap.org/forum/read.php?1,786827,787020#msg-787020 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,787020#msg-787020 Arnold General Thu, 07 Sep 2017 10:35:47 -0400 https://reprap.org/forum/read.php?1,786827,786948#msg-786948 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,786948#msg-786948 Arnold General Thu, 07 Sep 2017 03:32:37 -0400 https://reprap.org/forum/read.php?1,786827,786904#msg-786904 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,786904#msg-786904
Quote
Arnold
#if ENABLED(THERMAL_PROTECTION_HOTENDS)
#define THERMAL_PROTECTION_PERIOD 40 // Seconds
#define THERMAL_PROTECTION_HYSTERESIS 4 // Degrees Celsius

I have mine set at 70 period and 4 hysteresis]]> Floyd General Wed, 06 Sep 2017 19:00:59 -0400 https://reprap.org/forum/read.php?1,786827,786864#msg-786864 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,786864#msg-786864
For Marlin, these values indicate the counts of the soft-PWM power control (0 to PID_MAX).
PID is the Boring part of a Marlin firmware programing algorithm that help prevent a 3D Printer Meltdown or even causing a Fire.

Thermal runaway can occur if your fan is too high and blowing on the hot-end, cooling it down faster that the Hot-end Heater can heat it.
This happens every time I enable PID for my hotbed as it does not like to be soft-PWM power controlled.

Your number are the same I have used to control mine and several others I have helped 3D Printers, It is the same numbers Ultimaker Uses a Stock numbers.]]> Roberts_Clif General Wed, 06 Sep 2017 16:03:14 -0400 https://reprap.org/forum/read.php?1,786827,786855#msg-786855 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,786855#msg-786855
this is my setting in adv.h

#if ENABLED(THERMAL_PROTECTION_HOTENDS)
#define THERMAL_PROTECTION_PERIOD 40 // Seconds
#define THERMAL_PROTECTION_HYSTERESIS 4 // Degrees Celsius


Would you recommend me some different setting?]]> Arnold General Wed, 06 Sep 2017 14:17:54 -0400 https://reprap.org/forum/read.php?1,786827,786850#msg-786850 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,786850#msg-786850 I had this issue with the latest Marlin and had to back the runaway settings up a little to keep from getting this error.]]> Floyd General Wed, 06 Sep 2017 14:04:53 -0400 https://reprap.org/forum/read.php?1,786827,786834#msg-786834 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,786834#msg-786834 I built printer by myself. I use Ramps and latest Marlin, 100k termistors for heatbed and nozzle.

PID on Discount easy controller has these numbers:

P: +022.20
I: +001.08
D: +114.00

What these numbers means I have no clue. But as I said, there was no problem when I run printer through USB.]]> Arnold General Wed, 06 Sep 2017 12:51:04 -0400 https://reprap.org/forum/read.php?1,786827,786828#msg-786828 Re: Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,786828#msg-786828
Check you wiring to the Heater and Bed, Some hotbed with give thermal runaway if you use PID settings.

What are your PID numbers from the LCD. What kind of 3D Printer do you have.]]> Roberts_Clif General Wed, 06 Sep 2017 12:33:02 -0400 https://reprap.org/forum/read.php?1,786827,786827#msg-786827 Marlin - Thermal Runaway - Discount easy controller https://reprap.org/forum/read.php?1,786827,786827#msg-786827 today I mounted Discount easy controller for printing from SD card, but some new problem occured.
Printing is halted and lcd screen shows:

THERMAL RUNAWAY
PRINTER HALTED
Please reset

Do you know what it causes ? There is also some setting in cotroller for PID ?
Is this PID setting over Marlin PID setting ?

When I used USB everything was fine.]]> Arnold General Wed, 06 Sep 2017 12:28:31 -0400