JP3140872B2 - Control panel controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control panel controller for monitoring and controlling buildings and the like in which a large number of power loads are installed.

[0002]

2. Description of the Related Art In a building, there are a large number of power loads such as water supply / drainage and air conditioning, and a control panel controller is usually used for controlling these power loads. FIG. 8 is a system configuration diagram showing the basic functions of the control panel controller. The load power source branched from the power main line 5 by the main line branching device 51 passes through the breaker 4, passes through the magnet 3, and drives the load 2.

The control panel controller 1 is provided with operation buttons (on button, off button) for turning the load 2 on and off. When the operation button is pressed, the power is not turned on and off directly, but the magnet 3 is turned on and off. By turning on / off the current flowing through the coil, the magnet 3 is operated to turn on / off the contact of the power supply. A power motor that supplies and discharges water (in some cases, a liquid such as oil) from a water tank may cause troubles such as water cutoff or overflow from the water tank if the power supply and drainage capacity is reduced due to a malfunction or performance deterioration. In addition, even if there is sufficient capacity during normal use, the processing capacity may be insufficient with one unit such as a power motor used for a drain tank pump during heavy rain.

[0004] For the above reasons, two pumps, that is, two loads (power motors) are often provided side by side in the water supply / drainage of the water tank. In this case, the load is generally operated alternately during normal use. Hereinafter, this operation method is referred to as an automatic alternating operation method. In addition, the operation can be selected by the control panel controller so that any one of them can be operated independently at the time of a test or the like.

FIG. 9 is a diagram showing the basic performance of the control panel controller 1 of the above-mentioned automatic alternating operation system. The load power supply branched from the power main line 5 by the main branch 51 passes through the magnet 31 via the breaker 41 and drives the load 21 (the above is referred to as system 1), or passes through the magnet 32 via the breaker 42. The load 22 is driven (the above is referred to as system 2).

In the case of the automatic alternating operation system, which system is turned on next is controlled in the control panel controller 1 so as to always turn on the system opposite to the system currently turned on. Further, the magnet 3 is actuated to turn on / off the power supply contact by turning on / off the current flowing through the coil of the magnet 3 instead of directly turning the power on / off, as in the case of the description of the basic performance in FIG. Is the same.

Further, a liquid level sensor for detecting a liquid amount state is provided in the water tank, and when the liquid amount exceeds a predetermined fixed amount (full water state) or becomes less than the predetermined fixed amount. When a warning is issued for each state in a case (low water condition), a control panel controller that can perform a backup operation such as switching a power motor to be operated from a normal operation or operating both at the same time is widely used. ing.

[0008]

However, the number of water tanks,
Whether or not to perform backup operation for each combination of alarms for a full or low water condition and the type of backup operation are determined at the time of manufacture of the control panel controller, and a water tank or a liquid level sensor, In addition, there is a problem that the setting cannot be changed according to the needs of the user.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has as its object to be able to operably select the presence or absence of a backup operation and the method for each combination of alarms for the number of water tanks and the full or low water state. And a control panel controller.

[0010]

SUMMARY OF THE INVENTION The present invention controls the load of a power motor or the like for discharging or injecting water, oil or the like into or from a water tank, and when the load fails, the water tank becomes full or empty. A control panel controller that allows the user to select two loads in parallel to the water tank and to operate the loads alternately or to select only one of the loads so as not to cause the A liquid level sensor that detects the state of the liquid level is provided, and when the liquid level is full when the liquid level exceeds a predetermined amount or when the water level is less than the predetermined level, an alarm is issued for each state. Has a control means for switching the operation mode from the normal operation to the backup operation when the alarm is input,
It is equipped with an operation unit that can be operated and selected on the front panel or communication transmission interface for each combination of the number of water tanks and whether to perform backup operation for each combination of alarms for full or low water state. is there.

[0011]

According to the present invention, the presence or absence of the backup operation and the method of the backup operation are determined by the front panel of the control panel controller and the communication transmission interface with respect to the number of water tanks and the combination of each alarm for the full state or the low water state. Operation can be selected.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. The present invention relates to an alarm issued by a state from a liquid level sensor provided in a water tank, the number of water tanks, and the presence or absence of a backup operation for each combination of alarms for a full state or a low water state, When performing the backup operation, whether to control to operate by selecting the load opposite to the load that has been operating normally or to operate both loads at the same time can be controlled from the front panel. , Can be selected by a setting command from a communication transmission interface.

For the water tank, the first system and the second system are used.
One operation system, that is, a control panel controller used in a facility control system having two loads (power motors) arranged side by side, the number of water tanks (the number of water tanks may be one and two), Select the type (water tank for drainage, water tank for water supply, or combination of receiving tank and elevated water tank) and backup operation method (automatic reversal method or simultaneous operation method). The operation can be selected from the panel or the communication transmission interface.

Hereinafter, a specific description will be given. The control panel controller used in a distributed control system constructed in an intelligent building or the like does not simply turn on / off the magnet, but also generates a cumulative signal indicating how many times it has been turned on / off (start / stop) since the system was built. It also has monitoring functions such as the number of stops and the cumulative operating time indicating the total energizing time up to now.

FIG. 1 is a block diagram of the control panel controller 1, which comprises a front panel 1A and a main body 1B. The front panel 1A has a parameter operation section 21, a display section 22, a control operation section 23, and the like. It is composed of The main unit 1B includes a CPU 31 that performs overall signal processing, a communication transmission control unit 32 that performs a communication transmission interface, an output drive circuit 33 that outputs a control output to the magnet 3, a parameter storage unit 34, and the like. I have.

FIG. 2 is a front view of a front panel 1A of the control panel controller 1 according to one embodiment of the present invention. When the automatic operation button 11 is pressed, a mode of control by an external communication transmission interface or the like is set. At this time, if the automatic alternation button 14 is pressed, every time a start / stop request is input, one button is pressed.
The system and the system 2 are turned on alternately. When the system 1 fixing button 151 is pressed, the system 1 is turned on every time a start / stop request is received.
When the second system fixing button 152 is pressed, the second system is turned on each time a start / stop request is input.

When the test button 12 is pressed, a test mode is set. At this time, if the automatic alternate button 14 is pressed,
Turns on either system 1 or system 2 (system opposite to the system that was previously turned on). When the first system fixing button 151 is pressed, the first system is turned on. When the second system fixing button 152 is pressed,
System 2 turns on. When the cut button 13 is pressed, both the control by the communication transmission interface and the control by the control panel controller 1 are invalidated, and the output is always turned off.

The numerical display LEDs 161 and 162 display the load current of the first system and the load current of the second system, respectively. However, each time the display switching buttons 181 and 182 are pressed, the accumulated number of times of starting and stopping of each system, the accumulated operation time, and the like can be monitored. When the setting switch button 17 is pressed,
The display of the numerical display LED 161 is switched to a mode display for setting the number and type of the water tank, the presence or absence of the backup operation, and the backup operation method.

The status display LEDs 191 and 192 indicate whether the loads of the first and second systems are currently operating or stopped, or whether the loads are faulty. For example, the current state of the load 2 is displayed by performing continuous red lighting during operation, continuous green lighting during stoppage, and orange blinking during a failure by distinguishing between colors and blinking. By the way, the number, type,
The presence or absence of the backup operation and the backup operation method are selected according to various application examples as shown in FIGS.

FIG. 3 shows a system for supplying water to one water tank. The control panel controller 1 performs a backup operation using each alarm information of the full water and the low water from the liquid level sensor 42 provided in the water tank 41. . FIG. 4 shows a system for draining water from one water tank. The control panel controller 1 performs a backup operation by using each warning information of the full water and the low water from the liquid level sensor 44 provided in the water tank 43.

FIG. 5 shows a system for pumping water to a set of an elevated water tank 46 and a receiving tank 48 provided on a building 45 such as a building. The control panel controller 1 controls the water tanks 46 and 4 respectively.
The backup operation is performed using the alarm information of the full water and the low water from the liquid level sensors 47 and 49 of No. 8. As described above, the options shown in FIG. 6 can be considered for each application example.
While the setting mode is displayed, one of them is displayed.
The user can change the setting by pressing 81.

Each time the display switching button 181 is pressed, the mode can be switched in order from the top in FIG. 6 (a code indicating the corresponding mode is displayed on the numerical value display LED 161). When the change is completed, press the setting switch button 17
Press the button twice to complete the setting and return the display to the original load current display. 1, an automatic operation button 11, a test button 12, a cutoff button 13, an automatic alternate button 14, a first system fixing button 151, a second system fixing button 152 are provided on the control operation unit 23, and a setting display button 17 is provided on the parameter operation unit. 21
, And the first system display switching button 181 and the second system display switching button 182 are included in the display unit 22.

The number and type of water tanks, the presence / absence of backup operation, and the backup operation method depend on the operation system (system 1 and system 2).
, For convenience, the numerical display LED 16 on the first system side
Set using 1. Normally, the numerical display LED 161 displays the load current.
By pressing, the display of the numerical display LED 161 indicates the number of water tanks,
The mode is switched to the mode display for setting the type, backup operation, and backup operation method (the currently set mode is the setting code (0 to 15) shown in FIG. 6).
), And enter the setting mode.

In this setting mode, the change of the setting contents is 1
This is performed using the system display switching button 181. Specifically, each time the 1-system display switching button 181 is pressed, the code displayed increases by one, and when it reaches 15, the code is pressed once more and the display returns to 0 again. When the desired setting value can be changed, press the setting change button 17 once, and the current display code indicates the number and type of new water tanks, whether or not backup operation is performed,
Set as backup operation mode. Then, the display also returns to the original load current display.

In the case of controlling by the communication transmission interface, the control panel controller 1 is connected to the communication transmission line 6 to which the main controller 7 is connected as shown in FIG. .
The main controller 7 sends the mode code of FIG. 6 to the control panel controller 1 as a setting command, and sets the number and type of water tanks set in the control panel controller 1, the presence or absence of backup operation, and each mode of the backup operation method. Can be changed.

The control panel controller 1 further determines that the backup operation is enabled only when the mode is set so that the load is operated alternately. That is, the backup operation can be performed only when the automatic alternate button 14 is pressed. This is the first system fix button 15
When the first and second system fixing buttons 152 are pressed, it should be considered that a system that is not selected cannot be used due to a failure or the like. In this case, there is no point in forcibly performing the backup operation.

The setting from the communication transmission interface is performed by sending a command code for setting the number and type of the new water tank, the presence or absence of the backup operation, the backup operation method, and subsequently the above-mentioned setting code from the main controller 7. Upon receiving the command, the control panel controller 1 returns a response to the main controller 7.

[0028]

As described above, the present invention controls the load of a power motor or the like for discharging or injecting water, oil, or the like to or from a water tank, and when the load fails, the inside of the water tank becomes full or empty. A control panel controller that allows the user to select two loads in parallel to the water tank and to operate the loads alternately or to select only one of the loads so as not to cause the A liquid level sensor that detects the state of the liquid level is provided, and when the liquid level is full when the liquid level exceeds a predetermined amount or when the water level is less than the predetermined level, an alarm is issued for each state. Has a control means for switching the operation mode from the normal operation to the backup operation when the alarm is input,
It is equipped with an operation unit that can be operated and selected on the front panel or communication transmission interface for each combination of the number of water tanks and whether to perform backup operation for each combination of alarms for full or low water state. Therefore, the effect of being able to select the presence or absence of the backup operation and the type of the backup operation by the front panel of the control panel controller or the communication transmission interface can be selected for the number of water tanks and the combination of the respective alarms for the full state or the low water state. Things.

[Brief description of the drawings]

FIG. 1 is a block diagram of a control panel controller according to an embodiment of the present invention.

FIG. 2 is a front view of a front panel of the control panel controller according to the first embodiment.

FIG. 3 is a diagram showing a water supply system using one water tank according to the first embodiment.

FIG. 4 is a diagram showing a drainage system using one water tank according to the first embodiment.

FIG. 5 is a diagram showing a water pumping system using two water tanks, i.e., a water receiving tank and an elevated water tank.

FIG. 6 is a diagram showing setting codes for selecting the number and type of water tanks, the presence / absence of backup operation, and the backup operation method of the control panel controller of the above.

FIG. 7 is a system configuration diagram when the control panel controller and the communication transmission interface are connected to the same.

FIG. 8 is a system configuration diagram showing basic performance of a control panel controller.

FIG. 9 is a system configuration diagram showing functions of a control panel controller of an automatic alternating operation system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Control panel controller 1A Front panel 2 Load 3 Magnet 5 Power main line

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-286902 (JP, A) JP-A-60-170815 (JP, U) JP-A-59-26000 (JP, U) (58) Investigation Field (Int.Cl. ⁷ , DB name) G05B 9/03 G05D 9/12

Claims (5)

(57) [Claims] The present invention controls a load of a power motor or the like for discharging or injecting water, oil, or the like into or from a water tank, so that the tank does not become full or empty when the load fails.
A control panel controller that can select whether two loads are arranged side by side in a water tank and the loads are alternately operated or only one of the loads is operated to detect a liquid amount state in the water tank. A liquid level sensor is provided, and in the case of a full state in which the liquid amount exceeds a predetermined amount, or in a case of a water-reduced state in which the liquid amount does not reach a predetermined amount, an alarm is issued for each state, and the alarm is issued. Has a control means for switching the operation mode from the normal operation to the backup operation when is input, the number of water tanks, and whether to perform the backup operation for each combination of alarms for the full state or low water state. Control panel controller characterized by comprising an operation unit that can be operated and selected by a front panel or a communication transmission interface for each combination. 2. The control panel controller according to claim 1, wherein said backup operation is applied to water supply or drainage of a water tank. 3. The backup operation according to claim 1, wherein the load for the backup operation is a backup operation using the other load different from the load used in the normal operation.
Control panel controller as described. 4. The control panel controller according to claim 1, wherein the backup operation is performed by using both during the backup operation. 5. The control panel controller according to claim 1, wherein the backup operation is performed only when a mode in which the load is operated alternately is set.