JPH01103103A - Power control system - Google Patents

Abstract

PURPOSE:To obtain a power control system having flexibility, by a method wherein wiring is unnecessitated by using a switch, constituted of one set of an unit body consisting of a breaker, a solenoid contactor and an overload relay, and the control sequence of the system is effected by a software. CONSTITUTION:A switch 9, constituted of one set of an unit body as a module consisting of a breaker 6 for wiring, a solenoid contactor 7 and an overload relay 8, and a control unit 10 are incorporated into a power control board 4a for a water discharging pump 2. The control unit consists of a micro- processor and a control method is stored in the memory of the control unit 10 to control the switch 9 in accordance with the memorized control method, A water level is detected by a sensor 10 to control the water discharging pump 2. When this unit is used for other purposes, such as the control of an air conditioner and the like, the control method in the memory may be rewritten in accordance with the purpose.

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention relates to a power control system provided for operating power equipment and auxiliary equipment of buildings and the like. 4 <Prior Art> A power panel is the old name for equipment that constitutes an electric circuit for operating and stopping water pumps, air conditioning fans, heaters, heat exchangers, etc., housed in a single box.

Its main functions are to turn the power on and off, to protect the controlled power equipment and the electric wires leading to it, and to receive and receive signals from the sensor and operation panel for controlling the power TLL device and the mill control circuit. be.

Conventional power panels are used for pumps and fans installed in air conditioning equipment rooms and other equipment rooms. For a plurality of devices such as air conditioners, one box or two boxes, such as a power panel or two boxes, were installed in one place.

<<Problems to be solved by the invention>> As described above, in one power generator, there are circuit breakers corresponding to multiple pieces of equipment, respectively. electromagnetic switch. An overload relay is incorporated. For this reason, it was not possible to design or even begin manufacturing the power panel until the capacity and control method of the power equipment to which the power panel would be connected had all been clearly determined.

Further, as described above, a large number of circuit breakers, electromagnetic contactors, overload relays corresponding to a plurality of power devices, relays, timers, and the like constituting their control circuits are installed in the power panel. Therefore, the wiring between the control devices becomes complicated, and a large amount of wiring man-hours and space are required. □In particular, if there was a change in the type or specification of the controlled quantity after the above design was completed, the box itself might have to be remanufactured in some cases.

The present invention has been made in view of the above circumstances, and its purpose is to eliminate inefficient factors such as not being able to begin design and manufacturing until the electrical equipment, specifications, and control method of the power panel are determined, and to To provide a power control system that reduces wiring man-hours and wiring space, is miniaturized as a whole, and can easily and quickly respond to changes in specifications. .

(Means for Solving the Problems) In order to achieve the above object, the power control system according to the present invention consists of a single circuit breaker, a magnetic contactor, and an overload relay corresponding to the load capacity. , or a power control panel that integrates an opening/closing unit that has the same function as this single unit and a control unit that operates using program software with built-in memory to control the load, separately for each load. It is placed near the load.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Figure 1 is a schematic system diagram showing the air supply fan 1. Water pump 2
．． Dedicated power controls 51, 14-4a, and 4b corresponding to each load capacity of the drain pump 3, etc. are separately arranged and connected in the vicinity of these loads.

The remote control panel 5 located in the building central control room controls each power control TL.
Data signals are transferred to and from the l board 4-4a-4b.

For example, to explain in detail the power control 14a of the drain pump 3, as shown in FIG. 2, it includes a wiring interrupter 6. ? 'lf magnetic contactor7. Overload relay8. The switch 9, t, and IJ are integrated into a modular structure.
III unit 10 is incorporated.

The switch 9 can also be called a switch unit that has all the functions of a molded circuit breaker 6, an electromagnetic contactor 7, an overload relay 8, and the like.

The other control unit 10 turns the open RFL device 9 (opening/closing unit) on and off! , 11111,
i, 11 Ill This is a one-chip microprocessor application that has a built-in memory for writing programs, such as an EPROM, and is operated by program software.

The jfl pitcher 9 and the control unit 10 are modularized into a 6-inverted shape, and are integrated by interlocking with each other.

In other words, RI of occlusion! For this purpose, one side of the harmonica terminals is placed inside each of the harmonica terminals, and when used, this terminal part is inserted and connected.

This power control all board 4-4a-4b has the above molded circuit breaker 6.7fi magnetic contactor 7. It uses a switch 9 (tm switch unit and 1iIJtl unit 10) that have modular functions such as relays.

As such a modularized switch 9, for example, a contactor breaker manufactured by Telemechanic in France is used.
I-32 (Contactor breaker I
-32). According to this, wiring interrupter B6. T
i There is no need to wire between the electromagnetic contactor and the overload relay 8, and it has the function of integrating these into one unit, so to speak, it can be called a mm unit, and the power supply cable 1
2 may be connected to the input terminal, and the power ratio cable 14 may be connected between the output terminal and the water pump 2.

As for the control unit 10, the need for wiring is omitted as much as possible, and the control unit 10 is designed to be easily adaptable to the type and specifications of the load. Since the contents of the control unit's memory can be rewritten according to the control method of the target power Iil device, it is possible to manufacture the power control panel itself in advance, and any additions or changes to the υ control method can be made by software changes. This corresponds to That is, to change the specifications, it is sufficient to arbitrarily change the outdated contents of the internal memory of the semicontinuum logic circuit device incorporating the semiconductor memory.

The fIIIll unit 10 receives a control signal from the remote control panel 5, and also receives a control signal from the water level detection sensor 1 in the water tank 16.
8, and operates and stops the water pump 2 according to these signals.

By making the control unit I.10 a single unit that is integrated in advance with a switch 9 such as a switching unit, it becomes a simple power brake t11W4a that does not require wiring.

However, the switch 9 such as the opening/closing unit! , 1llil unit 10. This is because it is effective in that it can be handled simply by changing the switch 9 according to its rating.

As described above, if the &IJ controller Φ is the water pump 2, connect the water level detection sensor 18, or if the air supply fan 1 is the load, connect the temperature sensor etc. to the control unit 10, and perform the appropriate operation. In addition to setting the
What is necessary is to select the rating of the switch 9 that matches the load capacity.

(Effects) As described above in detail, the power control system according to the present invention provides a circuit breaker and an electromagnetic contactor.

Since a switch in which the overload relay is integrated into a single unit is used, there is no need for wiring or space for wiring, resulting in miniaturization, which is advantageous in terms of installation space. In addition, a control unit with built-in memory is used to control the load in the same way, and this can accommodate various control CD procedures and control specifications by changing the contents of the memory output and output, so there is no need to change wiring or perform wiring work. Also, it does not require wiring space, and therefore specifications can be easily changed in conjunction with the program software 1-.

Furthermore, since this switch and the control unit I~ are integrated or integrated into a power panel, and this is placed near each load, several negative There is no need to wait for the specifications of the M and control units to be decided, and the installation can be carried out sequentially from the 4 predetermined loads, which, combined with the fact that there is no need for wiring for each unit, greatly improves work efficiency. It is something.

Therefore, regardless of the specifications of the opening/closing unit, it is possible to make the control unit EL-compliant, so it is also possible to manufacture it in advance.

This kind of power control system can be applied to many fields such as buildings, ships, plants, packaged air conditioners, etc., and its range of use is extremely wide.

[Brief explanation of the drawing]

Figure 1 is a system diagram showing the overall outline of the power control system.
FIG. 2 is a block diagram showing the relationship between the power control panel and the load. 1... Air supply fan 2... Water pump 3.
...Drain pump 4...Power control panel 5...
Remote control panel 6... Wiring blocker 7...
・Magnetic contactor 8... Overload relay 9...
WU switch 10...11111Xl unit 12...Power supply cable 14...Power ratio cable 16...Water tank 18...
...Sensor patent applicant Obayashi Co., Ltd.
Morii Dengyo Co., Ltd. Representative Patent Attorney - Ken Iro Axis
Patent Attorney Masatoshi Matsumoto Figure 1

Claims (2)

[Claims] (1) A switching unit consisting of a circuit breaker, electromagnetic contactor, and overload relay corresponding to the load capacity, or having functions equivalent to this single unit, and program software with built-in memory to control the load. 1. A power control system characterized in that a power control panel integrated with a control unit that operates in a power control system is separately arranged in the vicinity of each load corresponding to each load. (2) The power control panel includes an opening/closing unit and a control unit as a set.
The power control system described in section.