KR100551194B1 - Controlling system for rewarding a interruption of electric power of boiler - Google Patents

Abstract

The present invention relates to a power failure compensation abnormality detection control system of a boiler, comprising: a controller for turning on / off a predetermined component part related to the operation of a boiler; A temperature controller for controlling the controller having an operation unit for changing a set value or selecting various functions, and a display unit for displaying an operation state by the operation unit; In order to compensate for a power failure, the change value selected by the operation unit is stored in one of the backup memories, and the stored value is reconfirmed, and if the stored value is different, it is determined that there is an error in the current address (area) and moved to another address. A backup processing unit; And a microcomputer for controlling the backup processing unit and outputting the processing result of the backup processing unit to the display unit.

Therefore, in the present invention, when there is an error in the backup memory, an abnormality indication that the power failure compensation cannot be performed immediately is displayed on the display so that anyone can see it easily and quickly, and take action. The error caused by temporary malfunction can be automatically canceled by re-storing, and even if backup memory is abnormal, if the consumer is restarted until A / S is received, the abnormal state is canceled for a predetermined time. It is intended to be used.

Boiler, Controller, Temperature Controller, Backup Memory, Storage, Power Failure, Power Failure Compensation

Description

Controlling system for rewarding a interruption of electric power of boiler

1 is a schematic control flow diagram for a conventional boiler,

2 is a control block diagram of a power failure compensation control system of a boiler according to the present invention;

Figure 3 is an embodiment of the present invention, the schematic control flow diagram for the power failure compensation control system of the boiler,

Figure 4 is another embodiment of the present invention, a schematic control flow diagram for the temporary operation mode in the power failure compensation state of the boiler.

Explanation of symbols on the main parts of the drawings

1: boiler 2: equipment parts

10: controller 20: temperature controller

21: operation unit 22: backup processing unit

23: display unit 24: microcomputer

The present invention relates to a power failure compensation abnormality detection control system of a boiler, and more specifically, if there is an error in the backup memory, it is not displayed as an outgoing function, which is the initial value unconditionally. It is related to the boiler power failure compensation abnormality detection control system that makes it easy to judge and take action, while repeatedly saving a change value at regular intervals so that errors caused by temporary malfunctions are automatically released.

Boilers used in homes and public buildings are used for heating or hot water.

These boilers are divided into oil boilers and gas boilers according to the type of fuel provided.

When comparing oil and gas boilers having the same capacity, oil boilers are cheaper than gas boilers in terms of purchase price, but gas boilers have less fuel consumption than oil boilers.

However, in the long run, the cost to consumers is almost the same for both oil and gas boilers.

Therefore, gas boilers are used when the city gas is supplied, and oil boilers are frequently used in other areas where the city gas is not supplied.

On the other hand, water vapor generated during the combustion of gas generates heat energy in the process of converting into water (H ₂ O) when contacted with a low temperature object or air.

At this time, a method designed to increase the heat efficiency by the gas boiler reabsorb the generated heat is called a condensing gas boiler.

Such condensing gas boilers have higher thermal efficiency than conventional gas boilers, and fuel costs are significantly reduced. Therefore, the use of condensing gas boilers is increasing.

In the following description, the boiler refers to a term including all water heaters and the like including an oil boiler, a gas boiler, and a condensing boiler.

In recent years, as the controller and the thermostat for controlling the boiler have been made MICOM, the control technology has been supplemented, making it more stable and convenient.

In particular, while the temperature controller is designed as a microcomputer, the circuit is also simplified, the size is smaller, and is designed with various functions, so that the boiler can be conveniently and safely used by the consumer.

As will be described later, the temperature controller is largely composed of an operation unit and a display unit.

The control unit is mainly used for adjusting the volume to change the setting value and the function button for selecting the function, the status of these are read into the input of the microcomputer, so that the function is immediately selected or the set value according to the input value The change will cause the boiler to run or stop.

However, in the use of the boiler as described above, power failures are sometimes generated in homes or apartments including apartments or in certain localities (mountains, farming and fishing villages) due to external factors such as excessive use of electricity and lightning, not by consumers. In some cases, the 220V power supply may be temporarily turned on / off.

If such a power failure or electricity supply is suspended and then supplied again, the boiler is often set to an initial value.

However, in general, since the initial value is mostly selected as a function of going out, heating is not performed even when electricity is supplied again.

Of course, if the consumer is at home, it is necessary to re-select the heating through the thermostat, but it must be quite inconvenient to reset the thermostat each time the power failure.

If, after selecting the heating at the appropriate temperature in winter, if the power goes out and the power is automatically converted to the initial value of the outing function, the heating is not performed when the customer returns home, which is quite uncomfortable or freezing. none.

Thus, in the case of a boiler that is released in the near future, as shown in Figure 1, when the consumer selects and changes a specific function of the thermostat (S111), the selected or set change value is stored in advance in the backup memory (S112) In the state in which the storage is completed (S113), when electricity is supplied again after a power failure, the value stored in the backup memory is checked to display a preselected value and to operate the boiler accordingly.

However, if a failure occurs in the backup memory or the chip (IC) constituting the backup memory and the value selected or set by the consumer is not backed up in the backup memory, it is automatically converted to the initial value described above even if electricity is supplied again after a power failure. There is no choice but to.

In this case, consumers can only know the temperature controller according to the presence or absence of heating over time, and even if it is confirmed, it is impossible to determine the exact cause.

The present invention has been made to solve the above problems, the object of the present invention is to check the abnormal state of the backup memory, if there is an error in the backup memory as usual, if the power is supplied again after power failure unconditionally In order to prevent the display from going out, which is the initial value, when the consumer selects or changes the setting value in the backup memory, if there is an error in the backup memory, it immediately displays an abnormality indicating that power failure compensation cannot be performed on the display. It is to provide a power failure compensation abnormality detection control system of a boiler so that it can judge and take action.

In addition, the present invention, in order to prevent a temporary malfunction of the backup memory, repeatedly checks the backup memory state at regular intervals even in the abnormal display state of the backup memory, the error caused by the temporary malfunction when the change value is normally stored. The present invention provides a control system for detecting abnormality in power failure of a boiler that is automatically released.

In particular, another object of the present invention is to be able to check immediately so that abnormality is not displayed when there is an error in the backup memory, so that quick A / S processing can be performed and at the same time, the backup memory can be In case of abnormal operation, if the consumer restarts, the system temporarily releases the abnormal state only for a certain period of time and provides a normal power failure compensation control system for the boiler to make it more convenient and safe through the temporary operation mode. There is.

The present invention for achieving the above object is provided with a controller for turning on and off (ON / OFF) a predetermined device component related to the operation of the boiler; A temperature controller for controlling the controller at a distance with an operation unit for changing a set value or selecting various functions, and a display unit for displaying an operation state by the operation unit; A backup processing unit which stores the selected or set change value in the backup memory in advance; A boiler comprising a microcomputer for controlling the backup processing unit and outputting a processing result of the backup processing unit to the display unit, wherein the backup processing unit is configured to change the value selected (or set) by the operation unit to compensate for power failure. When saving to any one of backup memory, check the saved value at the same time as saving and if the saved value is the same as the selected (or set) change value, it is processed as the save completion. It is achieved by providing a power failure compensation abnormality detection control system of a boiler, characterized by moving to another address.

Here, in the case of the micom, when the backup processor continuously moves the address to store the changed value in the backup memory, if the address is not empty and cannot be moved anymore, the backup of the changed value is not made. It is determined that the power failure cannot be compensated, and an abnormal display is output to the display unit.

The microcomputer includes: a comparison determination unit for comparing and determining the changed value and the initially selected change value when the backup processor transfers the changed value to another address; A data processor which processes the data determined by the comparison determination unit; And a communication unit configured to receive a signal from the data processing unit and control the communication with the controller.

Then, when a predetermined time elapses after the abnormal display is outputted to the display unit, the microcomputer determines whether the backup processing unit normally backs up by storing the change value again at any one of the backup memories.

At this time, when the change value is normally backed up, the abnormality display displayed on the display unit is released.

Particularly, in the present invention, when a consumer operates a re-operation button while the backup processor displays an abnormal occurrence of a backup memory, the microcomputer operates the timer in the microcomputer to check the time and automatically releases the power failure compensation abnormal state. When the selection and setting value are changed by the operation unit, the backup memory displays the changed value as shown in the normal state without storing the change value and controls the temporary operation mode to control the boiler by communicating with the boiler main controller. It is characterized by.

In addition, when the consumer restarts and controls the boiler through the temporary operation mode, when the timer reaches a predetermined time T2, the temporary operation mode is canceled and the power failure compensation based on the current selection and setting values is performed. Through the backup process for storing the backup memory to determine whether the backup memory state abnormality again / again.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

Figure 2 is a control block diagram for a power failure compensation control system of the boiler according to the present invention, Figure 3 is an embodiment of the present invention, a schematic control flow chart for the power failure compensation control system of the boiler, Figure 4 As another embodiment of the present invention, there is a schematic control flow chart for the temporary operation mode in the abnormal state of the power failure compensation of the boiler.

Before explaining this figure, it demonstrates generally about this invention as follows.

When the thermostatic compensation control system of the boiler of the present invention selects, sets, and changes the temperature controller 20 as a function desired by a consumer (called a "change value"), the change value is assigned to a specific address of the backup processor 22. The backup memory 22a, which is stored in the backup memory 22a of the backup memory 22a, and which is stored in the backup memory 22a and the current change value. By moving the data to another address, the normal change value can always be stored in the backup memory 22a to compensate for the power failure.

At this time, in the case of continuously moving the address to store the changed value in the backup memory 22a, if the address is not empty and cannot be moved anymore, the backup of the changed value is not made and compensation for power failure is provided. I can't.

In this case, the microcomputer 24 regards this state as an abnormal state and, for example, displays an indication of “an abnormal state” on the display unit 23 to check the display unit 23 and allow the consumer to take another action immediately. It was.

However, since the "abnormal state" may be displayed on the display unit 23 due to a malfunction of the chip IC constituting the program or backup memory 22a by external influence temporarily, in the present invention, the control of the microcomputer 24 is controlled. After a predetermined time, the backup processing unit 22 periodically stores the changed value again at one of the areas of the backup memory 22a to determine whether the backup is normally performed. The marked "ideal state" was released.

Therefore, when there is an abnormality in the backup memory 22a as in the related art, if the abnormal state of the backup memory 22a cannot be confirmed and the power is supplied again after power failure, for example, it is displayed as an initial value unconditionally. Rather, when the consumer selects or changes the set value by the control panel, the display unit 23 displays an "abnormal state" that cannot compensate for power failure, so that anyone can easily determine and take action while viewing it repeatedly. The changes were saved so that errors caused by temporary malfunctions were automatically cleared.

Particularly, in the present invention, even if the backup memory is operated again until the customer receives the A / S even if the backup memory is in an abnormal state, the temporary operation mode is released only for a certain time so that the consumer can temporarily use the boiler. It features.

As described above, according to the power failure compensation control system according to the present invention, the display unit 23 may not only display more than the necessary “abnormal state”, but if an abnormality occurs, it is possible to immediately check the boiler, thereby enabling quick A / S processing. It is possible to use (1) more conveniently and safely, and to increase the reliability of the boiler (1).

Next, the present invention will be described with reference to the accompanying drawings as an embodiment.

As shown in FIG. 2, the electrostatic compensation control system of the boiler according to the present invention is to control the boiler 1 through the temperature controller 20.

The boiler 1 is provided with a controller 10 for turning on / off a predetermined device part 2 related to the operation of the boiler 1.

In this case, the predetermined device part includes a blower, a heater, a valve, and the like.

The temperature controller 20 is composed of an operation unit 21, a display unit 23, a backup processing unit 22, and a microcomputer 24.

Of course, the backup processing unit 22 may also be formed as a configuration of the microcomputer 24. In consideration of the importance of the backup processing unit 22 will be described separately from the microcomputer 24 in the drawing.

The operation unit 21 has an adjustment volume 21a for changing a set value and a function button 21b for selecting various functions.

Of course, the changed and set change value may also be digitized and adopted as a button method.

The display section 23 is operated by the operation section 21 to display the selected change value.

Therefore, the display unit 23 is advantageously made of an LCD window capable of displaying letters, numbers, and the like.

The backup processing unit 22 having the backup memory 22a is provided for compensation for power failure.

The backup processing unit 22 stores the changed value selected by the operation unit 21 in any one of the backup memories 22a, and if the stored value is different or abnormally stored from the initially selected change value, It moves to address and saves.

On the other hand, the microcomputer 24 that controls the backup processing unit 22, when the backup processing unit 22 transfers the changed value to another address and stores it, the comparison determination unit for comparing and determining the transferred value and the initially selected change value ( 24a), a data processing unit 24b for processing data determined by the comparison determination unit 24a, and a communication unit 24c for receiving a signal from the data processing unit 24b and controlling the communication with the controller 10.

The microcomputer 24 changes the value if the backup processor 22 continuously moves the address to store the changed value in the backup memory 22a. It is determined that the backup cannot be made and the compensation for the power failure cannot be compensated.

As described above, the abnormal display means displaying the "abnormal state" directly on the display unit 23.

In this way, if the "abnormal state" is displayed on the display unit 23, the consumer can take prompt measures such as repairing the boiler 1 by calling the after-sales service technician.

However, an abnormal state may be displayed on the display unit 23 due to a malfunction of the chip IC constituting the program or backup memory 22a temporarily due to external influence.

Accordingly, the microcomputer 24 outputs an "abnormal state" to the display unit 23, and when a predetermined time elapses, the backup processing unit 22 returns the changed value to any one of the backup memories 22a. It is judged whether or not the backup is normally performed by storing it, and when the backup is normally performed, the "abnormal state" displayed on the display unit 23 is released.

In addition, even though the backup value is changed to another address by the backup processor 22 and stored, the comparison determination unit 24a of the microcomputer 24 determines whether the changed value and the initially selected change value are different from each other. The changed value is ignored and the stored value is outputted to the display unit 23 and the data processing unit 24b.

Next, with reference to FIG. 3, only the "heating" and "going out" functions of the temperature controller 20 except for many other functions in the temperature controller 20 will be described.

Here, K = 1, M = 0, 1, FF, R = 0, FF, etc. which will be described later are examples of variables and variable values according to a processing method in a backup process.

As shown in FIG. 3, when the consumer selects the "heating (H)" function and changes the set temperature from T = C1 to T = C2 (S11), when the input processing is completed in the microcomputer 24, the existing K = 1 is informed that the initial value has been changed, and it is determined whether or not the backup memory 22a is normal (S12), and the changed value is transmitted to the backup processing unit 22.

In the backup processing unit 22, if K = 1, the address corresponding to the heating (H), for example, stores XX in ad1 (S13), checks whether the storage value is XX, and then determines whether data is stored smoothly. do.

That is, it is determined whether the stored value and the changed value are the same (S14).

At this time, if the stored value XX is wrong, for example, move the address to ad11, store XX again, read the stored value, and check again whether it is XX.

If the stored value is not XX even after moving and storing, the microcomputer 24 determines whether or not the backup memory 22a is free (S17) and determines whether or not the backup processing unit 22 has an abnormality. (S18).

If it is determined that an abnormality has occurred in the backup memory 22a of the backup processing unit 22, the microcomputer 24 processes this state, for example, M = 1, and then transfers it to the comparison determination unit 24a.

In the comparison determination unit 24a, if M = 1 in the state of K = 1 described above, the existing change value is ignored and M = 1 is transmitted to the display unit 23 and the data processing unit 24b.

If M = 1, the display unit 23 determines that the power failure compensation is abnormal and outputs a power failure compensation abnormal state. The data processing unit 24b transmits the communication unit 24c to the communication unit 24c to use the controller 10. The operation of the boiler 1 is stopped.

If the XX value is read and read as "heating" when the XX value is read and stored in ad1 by the backup processing unit 22 after being changed for the first time, it is determined that it is written normally, and after acknowledging the changed value (S15), the microcomputer 24 The abnormality of the backup processing unit 22 is released (S16).

Of course, the circuit is configured so that this state can be fed back to the initial state.

However, if it is not read as "heating", as described above, the address is moved to another address and stored again to determine whether there is an abnormality.

Then, if the H value is normally stored, store the set temperature C2 in the above manner in ad3.

That is, write XX in ad3 and read the value of ad3 again to check whether the value is XX to check whether there is an abnormality of the memory state and to store C2 in the normal state.

In this way, when all the changed data is stored in the backup memory 22a and stored normally, the stored state variable value is processed as M = FF, for example, and transmitted to the comparison determination unit 24a.

Then, in the comparison determination unit 24a, when M = FF in the state of K = 1, it is determined that the backup is normally performed, and the changed value of H = "heating" and T = C2 is transmitted to the display unit 23. The display is outputted to the data processing unit 24b, and is then transmitted to the data processing unit 24b for processing, and then transferred to the communication unit 24c to communicate with the controller 10.

In operation S18, when an abnormality occurs in the backup memory 22a of the backup processor 22, a timer (not illustrated) is operated, and even though the abnormality does not occur, the timer is operated based on a predetermined setting time (S19). .

That is, for example, when an abnormality occurs in the backup memory 22a and the data is not stored smoothly (M = 1), the first timer TIMER is operated and when the predetermined time T1 is exceeded. In step S20, after the backup memory 22a is initialized (S21), the changed values are stored in the backup method order again, and the first timer 1 is processed to " 0 " (S22).

At this time, if the normal storage again, M = FF is processed and transmitted to the comparison determination unit 24a.

The comparison determination unit 24a transmits the changed H = "heating" and T = C2 to the display unit 23 to output the changed value, and transmits the changed H = "heating" and T = C2 to the data processing unit 24b before processing. By transmitting and communicating with the controller 10, the "abnormal state" indication was automatically released.

If it is not stored normally and the first timer is activated and the predetermined time (T1) is reached, the change value is stored again in the backup method order, and the memory status is continuously checked, thereby causing a malfunction due to an instantaneous external surge. If it can not save, it will automatically return.

In addition, even if the consumer does not change the functions and settings through the operation unit 21, the backup processing unit 22 reads the stored value stored at the present time when the predetermined time T2 is reached by operating the first timer.

That is, the value stored in ad1 is read and stored in ad1 again using the same storage method as above.

The state of the backup memory 22a of the backup processor 22 is checked by reading all the variable values stored in the memory and storing the variable values again.

Thus, if normal, M = FF is transmitted to the comparison determination unit 24a.

The comparison determination unit 24a compares the current variable value with the transmitted value and outputs the same value, for example, M = 0, and if different, the transmitted value is a normal value (for example, H is "heating" and "going out"). Only) and if it is normal, change the current variable value to the transmitted value and process it. Otherwise, set K = 1 and transfer the current variable value back to the backup processing unit 22 to backup memory 22a. ) To save.

Therefore, there is an advantage that the state of the backup memory 22a can always be checked at a T2 time interval even if the consumer does not operate the separate operation unit 21.

On the other hand, as shown in Figure 4, the process of controlling the boiler in the temporary operation mode in the abnormal state of the backup memory as follows.

If the chip IC of the backup memory 22a is faulty or has an abnormality generation process (M = 1, R = 0) so that the display unit 23 of the temperature controller 20 displays the "abnormal state" (S31), the consumer When the re-operation button is pressed (S32), the microcomputer 24 selects whether to ignore the abnormal state of the backup processing unit 22 (S33) or activates the second timer (TIMER) (S34).

As in the case described above, when the time checked by the second timer is equal to or greater than a predetermined time T2 (S35), the ignore setting state of the backup processing unit 22 is released (S36; temporary release of backup memory abnormal state), If not, the backup processing unit 22 is set to be ignored (S37).

As described above, when the display unit 23 of the temperature controller 20 displays an abnormal state, when the consumer presses the restart button and the restart signal is processed to the microcomputer 24 and transmitted to the comparison determination unit 24a, Processed as R = FF mentioned above, the second timer is activated to automatically cancel the abnormal state, and set the variables corresponding to the function selection or the function setting as the initial values and display the values in the display unit 23 and the data processing unit ( 24b).

Then, the consumer operates the button to change the function or changes the setting value and is processed by the microcomputer 24, and then transmitted to the comparison determination unit 24a. Instead, it is transmitted only to the display section 23 and the data processing section 24b to display and communicate with the changed function.

Although not shown, when the third tire is, for example, 24 hours or more in the comparison determination unit 24a, the R = 0 and the third tire are treated as "0".

Therefore, when the consumer changes the function selection because R = 0, the value is processed by the microcomputer 24 and the comparison determination unit 24a and transmitted to the backup processing unit 22, and the changed value is transferred from the backup memory 22a. If the data is not saved normally after being backed up, it is processed as above.

As such, the boiler can be controlled in the temporary operation mode so that the consumer can select and use the desired function until the A / S is received even in the abnormal state of the backup memory 22a, so that it can be used more conveniently and safely.

As described above, according to the present invention, when there is an error in the backup memory 22a, when the power is supplied again after a power failure as in the prior art, a function is selected and set by the consumer by the control unit, rather than being displayed as an outing function that is an initial value. When the change is made, the display unit 23 displays an abnormality indicating that the power failure compensation cannot be performed due to a backup memory error, so that it is easy to judge and take action even when anyone sees it. Errors caused by malfunctions are automatically released.

Also, do not display abnormality abnormally, and if there is any abnormality, it is possible to check immediately so that A / S processing can be promptly carried out. By allowing the use of the boiler (1) is more effective and safe to use.

On the other hand, the electrostatic compensation control system is not limited to the boiler, it is obvious that it can be applied to a water heater and the like having an electrostatic compensation function.

 As described above, according to the present invention, when there is an abnormality in the backup memory as in the prior art, when the power is re-powered and the power is supplied again, it is not necessarily displayed as an outgoing function that is the initial value, but the consumer selects a function and changes the setting value by the operation unit. If the data is not saved normally while saving to the backup memory immediately, the display memory shows abnormality indicating that the power failure compensation cannot be made due to the error, so that anyone can easily judge and take action. By repeatedly changing the value and storing the changed value and re-determining whether the backup memory is abnormal, the error caused by the temporary malfunction is automatically released.

In addition, according to the present invention, when there is an error in the backup memory, it is possible to immediately check not to display the abnormal abnormality, so that the rapid A / S processing is achieved and the abnormal state of the backup memory until receiving the A / S processing Even if the consumer restarts, the abnormal state can be temporarily released only for a certain time and the temperature controller can be used normally so that the boiler can be temporarily used more conveniently and safely through the temporary operation mode.

Claims (7)

A controller provided in the boiler to turn on / off certain device components related to the operation of the boiler; A temperature controller for controlling the controller at a distance with an operation unit for changing a set value or selecting various functions, and a display unit for displaying an operation state by the operation unit; A backup processing unit which stores the selected or set change value in the backup memory in advance; A boiler comprising a microcomputer that controls the backup processing unit and outputs the processing result of the backup processing unit to the display unit. When the backup processor stores the changed value selected (or set) by the operation unit in one of the backup memories to compensate for power failure, the stored value is selected (or set) by reconfirming the stored value at the same time as the storage. If it is equal to the change value, it is processed as storage completion, and if it is different, it is judged that there is an abnormality in the current address (area) and moved to another address to save the failure compensation control system of the boiler. The method of claim 1, The microcomputer, A comparison determination unit for comparing and determining the changed value and the initially selected change value when the backup value is changed and stored by the backup processor; A data processor which processes the data determined by the comparison determination unit; Power failure compensation abnormality detection control system of the boiler, characterized in that it comprises a communication unit for controlling the communication by receiving the signal of the data processing unit. The method according to claim 1 or 2, The microcomputer, When the backup processing unit stores the changed value in the backup memory and re-stores the address beyond the current storage memory area, If the address of the backup memory is not empty and cannot be moved and stored again, It is determined that the backup cannot be compensated for the power failure because the change is not made. Power failure compensation abnormality detection control system of the boiler, characterized in that for outputting the display of the power failure compensation abnormality. The method of claim 3, The microcomputer, After a predetermined time T1 elapses after outputting an abnormality display to the display unit, And the backup processing unit re-determines whether the backup is normally performed by storing the changed value in the backup memory again (whether or not the backup memory is in an abnormal state). The method of claim 4, wherein If the change is backed up normally, Power failure compensation abnormality detection control system of the boiler, characterized in that the automatic display of the abnormality displayed on the display. The method of claim 3, If the consumer operates the restart button while the backup processing unit indicates an abnormal occurrence of the backup memory, Operate the timer in the microcomputer and automatically release the power failure compensation status while checking the time, When the consumer changes the selection and setting value with the control panel, The backup memory displays the changed value on the display unit as shown in the normal state without storing the changed value and communicates with the main controller of the boiler to control the temporary operation mode to control the boiler. Detection control system. The method of claim 4, wherein When the consumer controls the boiler through the temporary operation mode by restarting, When the timer reaches a predetermined time T2, The power failure compensation of the boiler, wherein the temporary operation mode is released and the current selection and setting values are stored in the backup memory through the backup process for the power failure compensation, and the judgment is made again on whether or not there is an error in the backup memory. Fault detection control system.

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