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Combine thermal runaway and watch-period

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- Make thermal protection for all hotends and/or bed into simple
switches
- Now enable `WATCH_TEMP_PERIOD` when `THERMAL_PROTECTION_HOTENDS` is
enabled
- Move detailed thermal parameters to `Configuration_adv.h`
- Add sanity checks to warn about old configurations
- Change `WATCH_TEMP_PERIOD` to seconds instead of milliseconds
This commit is contained in:
Scott Lahteine
2015-05-10 22:52:01 -07:00
parent 4097207c75
commit 2445ae3d3a
30 changed files with 428 additions and 362 deletions
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17
Marlin/example_configurations/SCARA/Configuration.h
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@@ -302,23 +302,10 @@ Here are some standard links for getting your machine calibrated:
* The solution: Once the temperature reaches the target, start observing.
* If the temperature stays too far below the target (hysteresis) for too long,
* the firmware will halt as a safety precaution.
*
* Note that because the countdown starts only AFTER the temperature reaches
* the target, this will not catch a thermistor that is already disconnected
* when the print starts!
*
* To enable for all extruder heaters, uncomment the two defines below:
*/
// Parameters for all extruder heaters
#define THERMAL_RUNAWAY_PROTECTION_PERIOD 40 // in seconds
#define THERMAL_RUNAWAY_PROTECTION_HYSTERESIS 4 // in degree Celsius
// To enable for the bed heater, uncomment the two defines below:
// Parameters for the bed heater
#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 // in seconds
#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
#define THERMAL_PROTECTION_HOTENDS // Enable thermal protection for all extruders
#define THERMAL_PROTECTION_BED // Enable thermal protection for the heated bed
//===========================================================================
//============================= Mechanical Settings =========================

37
Marlin/example_configurations/SCARA/Configuration_adv.h
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@@ -15,16 +15,37 @@
#define BED_CHECK_INTERVAL 3000 //ms between checks in bang-bang control
/**
* Heating Sanity Check
*
* Whenever an M104 or M109 increases the target temperature this will wait for WATCH_TEMP_PERIOD milliseconds,
* and if the temperature hasn't increased by WATCH_TEMP_INCREASE degrees, the machine is halted, requiring a
* hard reset. This test restarts with any M104/M109, but only if the current temperature is below the target
* by at least 2 * WATCH_TEMP_INCREASE degrees celsius.
* Thermal Protection parameters
*/
#define WATCH_TEMP_PERIOD 16000 // 16 seconds
#define WATCH_TEMP_INCREASE 4 // Heat up at least 4 degrees in 16 seconds
#ifdef THERMAL_PROTECTION_HOTENDS
#define THERMAL_PROTECTION_PERIOD 40 // Seconds
#define THERMAL_PROTECTION_HYSTERESIS 4 // Degrees Celsius
/**
* Whenever an M104 or M109 increases the target temperature the firmware will wait for the
* WATCH_TEMP_PERIOD to transpire, and if the temperature hasn't increased by WATCH_TEMP_INCREASE
* degrees, the machine is halted, requiring a hard reset. This test restarts with any M104/M109,
* but only if the current temperature is below the target by at least 2 * WATCH_TEMP_INCREASE degrees.
*/
#define WATCH_TEMP_PERIOD 16 // Seconds
#define WATCH_TEMP_INCREASE 4 // Degrees Celsius
#endif
#ifdef THERMAL_PROTECTION_BED
#define THERMAL_PROTECTION_BED_PERIOD 20 // Seconds
#define THERMAL_PROTECTION_BED_HYSTERESIS 2 // Degrees Celsius
#endif
/**
* Automatic Temperature:
* The hotend target temperature is calculated by all the buffered lines of gcode.
* The maximum buffered steps/sec of the extruder motor is called "se".
* Start autotemp mode with M109 S<mintemp> B<maxtemp> F<factor>
* The target temperature is set to mintemp+factor*se[steps/sec] and is limited by
* mintemp and maxtemp. Turn this off by excuting M109 without F*
* Also, if the temperature is set to a value below mintemp, it will not be changed by autotemp.
* On an Ultimaker, some initial testing worked with M109 S215 B260 F1 in the start.gcode
*/
#ifdef PIDTEMP
// this adds an experimental additional term to the heating power, proportional to the extrusion speed.
// if Kc is chosen well, the additional required power due to increased melting should be compensated.