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Update Thermal Protection Documentation

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This commit is contained in:
Scott Lahteine
2017-11-07 15:46:44 -06:00
parent a6160916b0
commit 2c099fd4c2
77 changed files with 938 additions and 929 deletions
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11
Marlin/src/config/examples/delta/kossel_mini/Configuration.h
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@@ -428,12 +428,13 @@
//===========================================================================
/**
* Thermal Protection protects your printer from damage and fire if a
* thermistor falls out or temperature sensors fail in any way.
* Thermal Protection provides additional protection to your printer from damage
* and fire. Marlin always includes safe min and max temperature ranges which
* protect against a broken or disconnected thermistor wire.
*
* The issue: If a thermistor falls out or a temperature sensor fails,
* Marlin can no longer sense the actual temperature. Since a disconnected
* thermistor reads as a low temperature, the firmware will keep the heater on.
* The issue: If a thermistor falls out, it will report the much lower
* temperature of the air in the room, and the the firmware will keep
* the heater on.
*
* If you get "Thermal Runaway" or "Heating failed" errors the
* details can be tuned in Configuration_adv.h

41
Marlin/src/config/examples/delta/kossel_mini/Configuration_adv.h
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@@ -48,31 +48,36 @@
#endif
/**
* Thermal Protection protects your printer from damage and fire if a
* thermistor falls out or temperature sensors fail in any way.
* Thermal Protection provides additional protection to your printer from damage
* and fire. Marlin always includes safe min and max temperature ranges which
* protect against a broken or disconnected thermistor wire.
*
* The issue: If a thermistor falls out or a temperature sensor fails,
* Marlin can no longer sense the actual temperature. Since a disconnected
* thermistor reads as a low temperature, the firmware will keep the heater on.
* The issue: If a thermistor falls out, it will report the much lower
* temperature of the air in the room, and the the firmware will keep
* the heater on.
*
* The solution: Once the temperature reaches the target, start observing.
* If the temperature stays too far below the target (hysteresis) for too long (period),
* the firmware will halt the machine as a safety precaution.
* If the temperature stays too far below the target (hysteresis) for too
* long (period), the firmware will halt the machine as a safety precaution.
*
* If you get false positives for "Thermal Runaway" increase THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
* If you get false positives for "Thermal Runaway", increase
* THERMAL_PROTECTION_HYSTERESIS and/or THERMAL_PROTECTION_PERIOD
*/
#if ENABLED(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 expire, 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 far enough below the target for a reliable test.
* Whenever an M104, M109, or M303 increases the target temperature, the
* firmware will wait for the WATCH_TEMP_PERIOD to expire. If the temperature
* hasn't increased by WATCH_TEMP_INCREASE degrees, the machine is halted and
* requires a hard reset. This test restarts with any M104/M109/M303, but only
* if the current temperature is far enough below the target for a reliable
* test.
*
* If you get false positives for "Heating failed" increase WATCH_TEMP_PERIOD and/or decrease WATCH_TEMP_INCREASE
* WATCH_TEMP_INCREASE should not be below 2.
* If you get false positives for "Heating failed", increase WATCH_TEMP_PERIOD
* and/or decrease WATCH_TEMP_INCREASE. WATCH_TEMP_INCREASE should not be set
* below 2.
*/
#define WATCH_TEMP_PERIOD 20 // Seconds
#define WATCH_TEMP_INCREASE 2 // Degrees Celsius
@@ -86,13 +91,7 @@
#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.)
* As described above, except for the bed (M140/M190/M303).
*/
#define WATCH_BED_TEMP_PERIOD 60 // Seconds
#define WATCH_BED_TEMP_INCREASE 2 // Degrees Celsius