Fault Occurred During Setup. File Copy Setting Fault Description. Motor Auto Tuning. Full-load Current of Induction Motor 1(A). Current Limit for Speed Search. Treatment After Fault. Auto Restart Time After Fault. DEb Function Selection. Auto-tuning function The auto-tuning starts at each point of Low/Medium/High temperature. The temperature, to which the auto-tuning is performed, is set on the respective start screen and the auto-tuning is started by pressing the RUN/HOLD key. AT-1 (~3)/PV is alternately indicated on the PV display digits during the auto-tuning. https://high-powerxpert193.weebly.com/native-instruments-auto-tune.html.
The facilities described here are available in RepRepFirmware-dc42 and DuetWiFiFirmware version 1.15 and later.
How the heating control operates
Each heating controller in RepRapFirmware 1.15 and later can work either in bang-bang mode or in PID mode. When operating in PID mode, it can get its PID parameters in either of two ways:
After power up or reset, the bed heater controller is in bang-bang mode and the extruder heaters use the model-derived PID parameters. If you use the M301 command to set the legacy PID parameters, the controller for that heater switches over to use them. Mac boot camp safe mode. If you run a successful auto tune or you set the model parameters manually using the M307, the controller switches back to using model-derived PID parameters.
To see which set of parameters is being used, run M307 H# where H is the heater number, and that will tell you either that the model is in use (so model-based PID parameters are being used for that heater), or not in use (so legacy PID parameters are being used).
Each heating controller performs temperature monitoring to try to detect fault conditions such as a heater of thermistor falling out of an extruder heating block. The temperature monitor relies on the model parameters to decide what is reasonable behaviour. Therefore, even if you decide to use legacy PID parameters or bang-bang control, you should still define an approximate model of the heater to provide good heater monitoring without false alarms.
Setting the model parameters by auto tuning
Auto tuning is initiated by the M303 command:
Firmware 1.18 and later
The S parameter is the temperature to heat up to. The default value depends on which heater you are tuning. During auto tuning, the heater will be run at the specified power until this temperature is reached and then it will be switched off; so the temperature will overshoot the target somewhat
There is also an optional P parameter, which is the PWM value to use. Unless your heater is greatly over-powered, use the default PWM value of 1.0.
Firmware 1.17 and earlier
The S parameter is the maximum allowed temperature. Auto tuning will be abandoned if the temperature exceeds this value.
The P parameter is the PWM fraction to use. You should choose it such that when the heater is run at this PWM for an extended period, a typical printing temperature will be reached but the maximum specified by the S parameter will not be exceeded. The default value of 0.5 is satisfactory for a heater of modest power. Antares autotune 7 torrent. If you have a particularly powerful hot end heater, reduce it as necessary to avoid excessive temperature rise. Conversely, when tuning a weak bed heater that can barely reach 100C, increase it.
All firmware versions
Only one heater may be auto tuned at a time. Before commencing auto tuning, the heater to be tuned must be at or near room temperature and its temperature reading should be stable.
Send M303 with an H parameter (and optionally P and S parameters) to start the auto tune process. A message will be generated when auto tuning is completed or abandoned. You can also run M303 with no parameters to see the current status of auto tuning.
https://high-powerxpert193.weebly.com/little-snitch-352-download.html. Warning! During auto tuning there is minimal protection against heating faults. Therefore you should not leave the printer unattended during auto tuning.
If auto tuning is successful, new model parameters are set and the PID parameters computed from them are used. You can see these parameters by running the M307 H# command, where # is the heater number M307 will also indicate that the model is in use, meaning that the PID parameters displayed by M307 are used, not the PID parameters displayed by M301.
Tuning a hot end heater typically takes between five and ten minutes. Tuning a bed heater may take more than half an hour, depending on the thermal capacity of the bed. You can cancel tuning by sending M0.
After you have run auto tuning and checked that the heater control is working well, run M500 to save the heater parameters in config-override.g (this is supported in firmware 1.17 and later). Alternatively, construct a M307 command with the model parameters and add it to config.g. For example, if after tuning you run M307 H0 and see this:
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then you should add the following to config.g to preserve this model:
The B0 parameter tells the system to use PID (the default on power up is bang-bang for the bed heater). If you need to limit the maximum PWM of the heater, add an S parameter to the M307 command, for example S0.8 will limit the PWM to 80%.
Make sure there is no M301 command for the same heater after the M307 command, otherwise the model will not be used.
Troubleshooting auto tuning
Setting the model parameters manually
Model parameters can be changed and reported using the M307 command. Examples:
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The H parameter specifies the heater.
The A parameter is the model gain, which is the ultimate temperature rise divided by the PWM fraction. For example, a gain of 350 means that at a constant 50% PWM, the temperature would eventually reach ambient temperature plus 350 * 0.5 degC.
The D parameter is the dead time, which is the delay between a change in PWM and an appreciable effect on the rate of temperature change.
The C parameter is the model time constant. This may be thought of as the time taken for the temperature rise to reach 63.2% of its ultimate value after the heater is switched on from cold at constant PWM, less the dead time.
You can limit the PWM by adding a suitable S parameter, for example S0.8 will limit the PWM to 80%.
To use bang-bang mode instead of PID, change B0 to B1. In bang-bang mode, the S parameter is still used to limit the PWM when the heater is turned on.
Measuring the gain
Manual adjustments to the heater model parameters
If necessary you can make manual adjustments to the M307 model parameters, as follows:
Maxon Current Limit Occurred During Auto Tuning System
Setting legacy PID parameters
This mode is intended as a backup, for use if model-based tuning is not working well enough. The parameters are configured using the M301 command. Example:
The H parameter is the heater number. Usually, 0 is the bed heater, 1 is the extruder 0 heater, and so on.
P, I and D are the standard proportional. integral and differential coefficients, scaled by 255 for compatibility with older firmware. A negative P value means use bang-bang control.
Previous firmwares also had B, S, T and W parameters in the M301 command. These are no longer used.
Temperature faultsMaxon Current Limit Occurred During Auto Tuning Video
If the firmware detects a temperature anomaly, it will turn off the corresponding heater and put it in the Fault state. This can be seen in DuetWebControl, which will show the status of that heater as 'fault' instead of 'active', 'standby' or 'off'.
Maxon Current Limit Occurred During Auto Tuning 2017
You can reset a heater that is in the fault state using the command M562 P# where # is the heater number.
Maxon Current Limit Occurred During Auto Tuning Time
When a heater goes into the fault state, an error message is generated giving the reason. You can view the message in the Console page of DuetWebControl or PanelDue. The most common reasons are:
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