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Troubleshoot security mode

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Jean-Marc Collin
2023-12-10 00:10:34 +00:00
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README.md
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@@ -48,7 +48,7 @@
- [Change the temperature of presets](#change-the-temperature-of-presets)
- [Change security settings](#change-security-settings)
- [ByPass Window Check](#bypass-window-check)
- [Notifications](#notifications)
- [Events](#events)
- [Custom attributes](#custom-attributes)
- [Some results](#some-results)
- [Even better](#even-better)
@@ -63,6 +63,10 @@
- [Using a Heatsink with a Pilot Wire](#using-a-heatsink-with-a-pilot-wire)
- [Only the first radiator heats](#only-the-first-radiator-heats)
- [Adjust window opening detection parameters in auto mode](#adjust-window-opening-detection-parameters-in-auto-mode)
- [Why does my Versatile Thermostat go into Safety?](#why-does-my-versatile-thermostat-go-into-safety)
- [How to detect security mode?](#how-to-detect-security-mode)
- [How can I be notified when this happens?](#how-can-i-be-notified-when-this-happens)
- [How to repair?](#how-to-repair)
This custom component for Home Assistant is an upgrade and is a complete rewrite of the component "Awesome thermostat" (see [Github](https://github.com/dadge/awesome_thermostat)) with addition of features.
@@ -479,70 +483,70 @@ See [example tuning](#examples-tuning) for common tuning examples
## Parameters synthesis
| Paramètre | Libellé | "over switch" | "over climate" | "over valve" |
| ----------| --------| --- | --- | -- |
| ``name`` | Name | X | X | X |
| ``thermostat_type`` | Thermostat type | X | X | X |
| ``temperature_sensor_entity_id`` | Temperature sensor entity id | X | X (self-regulation) | X |
| ``external_temperature_sensor_entity_id`` | External temperature sensor entity id | X | X (self-regulation) | X |
| ``cycle_min`` | Cycle duration (minutes) | X | X | X |
| ``temp_min`` | Minimal temperature allowed | X | X | X |
| ``temp_max`` | Maximal temperature allowed | X | X | X |
| ``device_power`` | Device power | X | X | X |
| ``use_window_feature`` | Use window detection | X | X | X |
| ``use_motion_feature`` | Use motion detection | X | X | X |
| ``use_power_feature`` | Use power management | X | X | X |
| ``use_presence_feature`` | Use presence detection | X | X | X |
| ``heater_entity1_id`` | 1rst heater switch | X | - | - |
| ``heater_entity2_id`` | 2nd heater switch | X | - | - |
| ``heater_entity3_id`` | 3rd heater switch | X | - | - |
| ``heater_entity4_id`` | 4th heater switch | X | - | - |
| ``proportional_function`` | Algorithm | X | - | X |
| ``climate_entity1_id`` | 1rst underlying climate | - | X | - |
| ``climate_entity2_id`` | 2nd underlying climate | - | X | - |
| ``climate_entity3_id`` | 3rd underlying climate | - | X | - |
| ``climate_entity4_id`` | 4th underlying climate | - | X | - |
| ``valve_entity1_id`` | 1rst underlying valve | - | - | X |
| ``valve_entity2_id`` | 2nd underlying valve | - | - | X |
| ``valve_entity3_id`` | 3rd underlying valve | - | - | X |
| ``valve_entity4_id`` | 4th underlying valve | - | - | X |
| ``ac_mode`` | Use the Air Conditioning (AC) mode | X | X | X |
| ``tpi_coef_int`` | Coefficient to use for internal temperature delta | X | - | X |
| ``tpi_coef_ext`` | Coefficient to use for external temperature delta | X | - | X |
| ``eco_temp`` | Temperature in Eco preset | X | X | X |
| ``comfort_temp`` | Temperature in Comfort preset | X | X | X |
| ``boost_temp`` | Temperature in Boost preset | X | X | X |
| ``eco_ac_temp`` | Temperature in Eco preset for AC mode | X | X | X |
| ``comfort_ac_temp`` | Temperature in Comfort preset for AC mode | X | X | X |
| ``boost_ac_temp`` | Temperature in Boost preset for AC mode | X | X | X |
| ``window_sensor_entity_id`` | Window sensor entity id | X | X | X |
| ``window_delay`` | Window sensor delay (seconds) | X | X | X |
| ``window_auto_open_threshold`` | Temperature decrease threshold for automatic window open detection (in °/min) | X | X | X |
| ``window_auto_close_threshold`` | Temperature increase threshold for end of automatic detection (in °/min) | X | X | X |
| ``window_auto_max_duration`` | Maximum duration of automatic window open detection (in min) | X | X | X |
| ``motion_sensor_entity_id`` | Motion sensor entity id | X | X | X |
| ``motion_delay`` | Delay before considering the motion (seconds) | X | X | X |
| ``motion_off_delay`` | Delay before considering the end of motion (seconds) | X | X | X |
| ``motion_preset`` | Preset to use when motion is detected | X | X | X |
| ``no_motion_preset`` | Preset to use when no motion is detected | X | X | X |
| ``power_sensor_entity_id`` | Power sensor entity id | X | X | X |
| ``max_power_sensor_entity_id`` | Max power sensor entity id | X | X | X |
| ``power_temp`` | Temperature for Power shedding | X | X | X |
| ``presence_sensor_entity_id`` | Presence sensor entity id | X | X | X |
| ``eco_away_temp`` | Temperature in Eco preset when no presence | X | X | X |
| ``comfort_away_temp`` | Temperature in Comfort preset when no presence | X | X | X |
| ``boost_away_temp`` | Temperature in Boost preset when no presence | X | X | X |
| ``eco_ac_away_temp`` | Temperature in Eco preset when no presence in AC mode | X | X | X |
| ``comfort_ac_away_temp`` | Temperature in Comfort preset when no presence in AC mode | X | X | X |
| ``boost_ac_away_temp`` | Temperature in Boost preset when no presence in AC mode | X | X | X |
| ``minimal_activation_delay`` | Minimal activation delay | X | - | X |
| ``security_delay_min`` | Security delay (in minutes) | X | - | X |
| ``security_min_on_percent`` | Minimal power percent to enable security mode | X | - | X |
| ``security_default_on_percent`` | Power percent to use in security mode | X | - | X |
| ``auto_regulation_mode`` | Le mode d'auto-régulation | - | X | - |
| ``auto_regulation_dtemp`` | La seuil d'auto-régulation | - | X | - |
| ``auto_regulation_period_min`` | La période minimale d'auto-régulation | - | X | - |
| ``inverse_switch_command`` | Inverse the switch command (for pilot wire switch) | X | - | - |
| Paramètre | Libellé | "over switch" | "over climate" | "over valve" |
| ----------------------------------------- | ----------------------------------------------------------------------------- | ------------- | ------------------- | ------------ |
| ``name`` | Name | X | X | X |
| ``thermostat_type`` | Thermostat type | X | X | X |
| ``temperature_sensor_entity_id`` | Temperature sensor entity id | X | X (self-regulation) | X |
| ``external_temperature_sensor_entity_id`` | External temperature sensor entity id | X | X (self-regulation) | X |
| ``cycle_min`` | Cycle duration (minutes) | X | X | X |
| ``temp_min`` | Minimal temperature allowed | X | X | X |
| ``temp_max`` | Maximal temperature allowed | X | X | X |
| ``device_power`` | Device power | X | X | X |
| ``use_window_feature`` | Use window detection | X | X | X |
| ``use_motion_feature`` | Use motion detection | X | X | X |
| ``use_power_feature`` | Use power management | X | X | X |
| ``use_presence_feature`` | Use presence detection | X | X | X |
| ``heater_entity1_id`` | 1rst heater switch | X | - | - |
| ``heater_entity2_id`` | 2nd heater switch | X | - | - |
| ``heater_entity3_id`` | 3rd heater switch | X | - | - |
| ``heater_entity4_id`` | 4th heater switch | X | - | - |
| ``proportional_function`` | Algorithm | X | - | X |
| ``climate_entity1_id`` | 1rst underlying climate | - | X | - |
| ``climate_entity2_id`` | 2nd underlying climate | - | X | - |
| ``climate_entity3_id`` | 3rd underlying climate | - | X | - |
| ``climate_entity4_id`` | 4th underlying climate | - | X | - |
| ``valve_entity1_id`` | 1rst underlying valve | - | - | X |
| ``valve_entity2_id`` | 2nd underlying valve | - | - | X |
| ``valve_entity3_id`` | 3rd underlying valve | - | - | X |
| ``valve_entity4_id`` | 4th underlying valve | - | - | X |
| ``ac_mode`` | Use the Air Conditioning (AC) mode | X | X | X |
| ``tpi_coef_int`` | Coefficient to use for internal temperature delta | X | - | X |
| ``tpi_coef_ext`` | Coefficient to use for external temperature delta | X | - | X |
| ``eco_temp`` | Temperature in Eco preset | X | X | X |
| ``comfort_temp`` | Temperature in Comfort preset | X | X | X |
| ``boost_temp`` | Temperature in Boost preset | X | X | X |
| ``eco_ac_temp`` | Temperature in Eco preset for AC mode | X | X | X |
| ``comfort_ac_temp`` | Temperature in Comfort preset for AC mode | X | X | X |
| ``boost_ac_temp`` | Temperature in Boost preset for AC mode | X | X | X |
| ``window_sensor_entity_id`` | Window sensor entity id | X | X | X |
| ``window_delay`` | Window sensor delay (seconds) | X | X | X |
| ``window_auto_open_threshold`` | Temperature decrease threshold for automatic window open detection (in °/min) | X | X | X |
| ``window_auto_close_threshold`` | Temperature increase threshold for end of automatic detection (in °/min) | X | X | X |
| ``window_auto_max_duration`` | Maximum duration of automatic window open detection (in min) | X | X | X |
| ``motion_sensor_entity_id`` | Motion sensor entity id | X | X | X |
| ``motion_delay`` | Delay before considering the motion (seconds) | X | X | X |
| ``motion_off_delay`` | Delay before considering the end of motion (seconds) | X | X | X |
| ``motion_preset`` | Preset to use when motion is detected | X | X | X |
| ``no_motion_preset`` | Preset to use when no motion is detected | X | X | X |
| ``power_sensor_entity_id`` | Power sensor entity id | X | X | X |
| ``max_power_sensor_entity_id`` | Max power sensor entity id | X | X | X |
| ``power_temp`` | Temperature for Power shedding | X | X | X |
| ``presence_sensor_entity_id`` | Presence sensor entity id | X | X | X |
| ``eco_away_temp`` | Temperature in Eco preset when no presence | X | X | X |
| ``comfort_away_temp`` | Temperature in Comfort preset when no presence | X | X | X |
| ``boost_away_temp`` | Temperature in Boost preset when no presence | X | X | X |
| ``eco_ac_away_temp`` | Temperature in Eco preset when no presence in AC mode | X | X | X |
| ``comfort_ac_away_temp`` | Temperature in Comfort preset when no presence in AC mode | X | X | X |
| ``boost_ac_away_temp`` | Temperature in Boost preset when no presence in AC mode | X | X | X |
| ``minimal_activation_delay`` | Minimal activation delay | X | - | X |
| ``security_delay_min`` | Security delay (in minutes) | X | - | X |
| ``security_min_on_percent`` | Minimal power percent to enable security mode | X | - | X |
| ``security_default_on_percent`` | Power percent to use in security mode | X | - | X |
| ``auto_regulation_mode`` | Le mode d'auto-régulation | - | X | - |
| ``auto_regulation_dtemp`` | La seuil d'auto-régulation | - | X | - |
| ``auto_regulation_period_min`` | La période minimale d'auto-régulation | - | X | - |
| ``inverse_switch_command`` | Inverse the switch command (for pilot wire switch) | X | - | - |
# Examples tuning
@@ -725,7 +729,7 @@ target:
entity_id : climate.my_thermostat
```
# Notifications
# Events
Significant thermostat events are notified via the message bus.
The notified events are as follows:
@@ -751,46 +755,46 @@ To tune the algorithm you have access to all context seen and calculted by the t
Custom attributes are the following:
| Attribute | Meaning |
| ----------| --------|
| ``hvac_modes`` | The list of modes supported by the thermostat |
| ``min_temp`` | The minimal temperature |
| ``max_temp`` | The maximal temperature |
| ``preset_modes`` | The presets visible for this thermostat. Hidden presets are not showed here |
| ``current_temperature`` | The current temperature as reported by the sensor |
| ``temperature`` | The target temperature |
| ``hvac_action`` | The action currently running by the heater. Can be idle, heating |
| ``preset_mode`` | The currently selected preset. Can be one of the 'preset_modes' or a hidden preset like power |
| ``[eco/comfort/boost]_temp`` | The temperature configured for the preset xxx |
| ``[eco/comfort/boost]_away_temp`` | The temperature configured for the preset xxx when presence is off or not_home |
| ``power_temp`` | The temperature used when shedding is detected |
| ``on_percent`` | The percentage on calculated by the TPI algorithm |
| ``on_time_sec`` | The On period in sec. Should be ```on_percent * cycle_min``` |
| ``off_time_sec`` | The Off period in sec. Should be ```(1 - on_percent) * cycle_min``` |
| ``cycle_min`` | The calculation cycle in minutes |
| ``function`` | The algorithm used for cycle calculation |
| ``tpi_coef_int`` | The ``coef_int`` of the TPI algorithm |
| ``tpi_coef_ext`` | The ``coef_ext`` of the TPI algorithm |
| ``saved_preset_mode`` | The last preset used before automatic switch of the preset |
| ``saved_target_temp`` | The last temperature used before automatic switching |
| ``window_state`` | The last known state of the window sensor. None if window is not configured |
| ``window_bypass_state`` | True if the bypass of the window detection is activated |
| ``motion_state`` | The last known state of the motion sensor. None if motion is not configured |
| ``overpowering_state`` | The last known state of the overpowering sensor. None if power management is not configured |
| ``presence_state`` | The last known state of the presence sensor. None if presence management is not configured |
| ``security_delay_min`` | The delay before setting the security mode when temperature sensor are off |
| ``security_min_on_percent`` | The minimal on_percent below which security preset won't be trigger |
| ``security_default_on_percent`` | The on_percent used when thermostat is in ``security`` |
| ``last_temperature_datetime`` | The date and time in ISO8866 format of the last internal temperature reception |
| ``last_ext_temperature_datetime`` | The date and time in ISO8866 format of the last external temperature reception |
| ``security_state`` | The security state. true or false |
| ``minimal_activation_delay_sec`` | The minimal activation delay in seconds |
| ``last_update_datetime`` | The date and time in ISO8866 format of this state |
| ``friendly_name`` | The name of the thermostat |
| ``supported_features`` | A combination of all features supported by this thermostat. See official climate integration documentation for more informations |
| ``valve_open_percent`` | The opening percentage of the valve |
| ``regulated_target_temperature`` | The self-regulated target temperature calculated |
| ``is_inversed`` | True if the command is inversed (pilot wire with diode) |
| Attribute | Meaning |
| --------------------------------- | -------------------------------------------------------------------------------------------------------------------------------- |
| ``hvac_modes`` | The list of modes supported by the thermostat |
| ``min_temp`` | The minimal temperature |
| ``max_temp`` | The maximal temperature |
| ``preset_modes`` | The presets visible for this thermostat. Hidden presets are not showed here |
| ``current_temperature`` | The current temperature as reported by the sensor |
| ``temperature`` | The target temperature |
| ``hvac_action`` | The action currently running by the heater. Can be idle, heating |
| ``preset_mode`` | The currently selected preset. Can be one of the 'preset_modes' or a hidden preset like power |
| ``[eco/comfort/boost]_temp`` | The temperature configured for the preset xxx |
| ``[eco/comfort/boost]_away_temp`` | The temperature configured for the preset xxx when presence is off or not_home |
| ``power_temp`` | The temperature used when shedding is detected |
| ``on_percent`` | The percentage on calculated by the TPI algorithm |
| ``on_time_sec`` | The On period in sec. Should be ```on_percent * cycle_min``` |
| ``off_time_sec`` | The Off period in sec. Should be ```(1 - on_percent) * cycle_min``` |
| ``cycle_min`` | The calculation cycle in minutes |
| ``function`` | The algorithm used for cycle calculation |
| ``tpi_coef_int`` | The ``coef_int`` of the TPI algorithm |
| ``tpi_coef_ext`` | The ``coef_ext`` of the TPI algorithm |
| ``saved_preset_mode`` | The last preset used before automatic switch of the preset |
| ``saved_target_temp`` | The last temperature used before automatic switching |
| ``window_state`` | The last known state of the window sensor. None if window is not configured |
| ``window_bypass_state`` | True if the bypass of the window detection is activated |
| ``motion_state`` | The last known state of the motion sensor. None if motion is not configured |
| ``overpowering_state`` | The last known state of the overpowering sensor. None if power management is not configured |
| ``presence_state`` | The last known state of the presence sensor. None if presence management is not configured |
| ``security_delay_min`` | The delay before setting the security mode when temperature sensor are off |
| ``security_min_on_percent`` | The minimal on_percent below which security preset won't be trigger |
| ``security_default_on_percent`` | The on_percent used when thermostat is in ``security`` |
| ``last_temperature_datetime`` | The date and time in ISO8866 format of the last internal temperature reception |
| ``last_ext_temperature_datetime`` | The date and time in ISO8866 format of the last external temperature reception |
| ``security_state`` | The security state. true or false |
| ``minimal_activation_delay_sec`` | The minimal activation delay in seconds |
| ``last_update_datetime`` | The date and time in ISO8866 format of this state |
| ``friendly_name`` | The name of the thermostat |
| ``supported_features`` | A combination of all features supported by this thermostat. See official climate integration documentation for more informations |
| ``valve_open_percent`` | The opening percentage of the valve |
| ``regulated_target_temperature`` | The self-regulated target temperature calculated |
| ``is_inversed`` | True if the command is inversed (pilot wire with diode) |
# Some results
@@ -1130,6 +1134,54 @@ versatile_thermostat:
These parameters are sensitive and quite difficult to adjust. Please only use them if you know what you are doing and your temperature measurements are not already smooth.
## Why does my Versatile Thermostat go into Safety?
Safety mode is only possible on VTherm `over_switch` and `over_valve`. It occurs when one of the 2 thermometers which gives the room temperature or the outside temperature has not sent a value for more than `security_delay_min` minutes and the radiator was heating at least `security_min_on_percent`.
As the algorithm is based on temperature measurements, if they are no longer received by the VTherm, there is a risk of overheating and fire. To avoid this, when the conditions mentioned above are detected, heating is limited to the `security_default_on_percent` parameter. This value must therefore be reasonably low. It helps prevent a fire while avoiding completely cutting off the radiator (risk of freezing).
All these parameters are adjusted on the last page of the VTherm configuration: “Advanced parameters”.
### How to detect security mode?
The first symptom is an abnormally low temperature with a slow and regular heating time in each cycle.
Example:
[security mode](https://github.com/jmcollin78/versatile_thermostat/blob/main/images/security-mode-symptome1.png?raw=true)
If you installed the [Versatile Thermostat UI Card](https://github.com/jmcollin78/versatile-thermostat-ui-card), the VTherm in question will have this shape:
[security mode UI Card](https://github.com/jmcollin78/versatile_thermostat/blob/main/images/security-mode-symptome2.png?raw=true)
You can also check in the VTherm attributes the dates of receipt of the different dates. Attributes are available in Development Tools / Reports.
Example :
```
security_state: true
last_temperature_datetime: "2023-12-06T18:43:28.346010+01:00"
last_ext_temperature_datetime: "2023-12-06T13:04:35.164367+01:00"
last_update_datetime: "2023-12-06T18:43:28.351103+01:00"
...
security_delay_min: 60
```
We see that :
1. the VTherm is in security mode (`security_state: true`),
2. the current time is 06/12/2023 at 18:43:28 (`last_update_datetime: "2023-12-06T18:43:28.351103+01:00"`),
3. the last received time of indoor temperature is 06/12/2023 at 18:43:28 (`last_temperature_datetime: "2023-12-06T18:43:28.346010+01:00"`). So she's on time,
4. the last reception time of the outdoor temperature is 06/12/2023 at 1:04:35 p.m. (`last_ext_temperature_datetime: "2023-12-06T13:04:35.164367+01:00`). external time which is more than 5 hours late and which caused the switch to security mode, because the threshold is limited to 60 min (`security_delay_min: 60`)
### How can I be notified when this happens?
To be notified, the VTherm sends an event as soon as it happens and one at the end of the security alert. You can capture these events in an automation and send a notification for example, flash a light, trigger a siren, etc. It's up to you.
To manipulate the events generated by VTherm, cf. [Events](#events).
### How to repair?
This will depend on the cause of the problem:
1. If a sensor is faulty, it must be repaired (replace batteries, change it, check the Weather integration which gives the outside temperature, etc.),
2. If the `security_delay_min` parameter is too small, it risks generating a lot of false alerts. A correct value is around 60 min, especially if you have battery-powered temperature sensors.
3. Some temperature sensors do not send a measurement if the temperature has not changed. So in the event of a very stable temperature for a long time, the safety mode may be triggered. This is not very serious since it is removed as soon as the VTherm receives a temperature again. On certain thermometers (TuYA for example), you can force the maximum delay between 2 measurements. It will be appropriate to set a max delay < `security_delay_min`,
4. As soon as the temperature is received again the security mode will be removed and the previous values of preset, target temperature and mode will be restored.
***
[versatile_thermostat]: https://github.com/jmcollin78/versatile_thermostat