JP2010119272A - Power supply system controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power supply system controller for easily controlling a plurality of power supply systems and achieving power saving. <P>SOLUTION: The power supply system controller 1 for controlling the power supply systems of a plurality of apparatuses includes: an input terminal 11; a plurality of output terminals 12A, 12B and 13A, 13B; relays 18, 19 arranged between the input terminal 11 and a part or all of the output terminals; a control circuit 10 for controlling the power supply systems of the plurality of apparatuses; outside contact point signal receiving section 20, 21 for inputting an operation stop signal ST1 or an operation start signal MS1 of each of the apparatuses; and a network connecting section 24 capable of controlling power supply from a terminal 25 of the outside to each of the apparatuses. The control circuit 10 opens and closes the relays 18, 19 based on signals ST1, MS1 and ST2, MS2 received from the outside contact point signal receiving sections 20, 21 or the terminal 25 via the network connecting section 24, and interrupts power supply to the power supply system of each of the apparatuses or supplies power thereto. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a power system controller.

  Patent Literature 1 discloses a power outlet provided with a plurality of device connection outlets. This power outlet is equipped with a power switch for opening and closing the power supply. If this power switch is turned ON or OFF in advance for a plurality of outlets connected to the same power source, the power supply is turned on or off for each outlet. Can be kept.

Japanese Utility Model Publication No. 05-9138 (summary, paragraph 0011, etc.)

  When a power outlet as shown in Patent Document 1 is used for, for example, a device operating on a factory line, a power switch is set in advance so that each device connected to the power supply system is energized or cut off. Must be manipulated and set up. In particular, in a factory with a large site, it is very complicated to perform these settings for each power outlet, leading to human error and increasing time costs.

  The present invention has been made under such a background, and an object of the present invention is to provide a power system controller that easily controls a plurality of power systems and saves power.

  One aspect of the present invention is a power supply system control device that controls a power supply system of a plurality of devices, an input terminal to which power is input, a plurality of output terminals that output power input from the input terminal, and an input A relay unit arranged in part or all between the terminal and the plurality of output terminals, a control circuit for controlling the power supply system of the plurality of devices by controlling opening and closing of the relay unit for each output terminal, and operation of each device An external contact signal receiving unit that inputs a stop signal or an operation start signal, and a network connection unit that enables power supply control from an external terminal to each device, and the control circuit is an external contact signal receiving unit Based on the received operation stop signal or operation start signal, or the signal received from the terminal via the network connection unit, the relay unit is opened and closed to cut off the power supply to the power supply system of the device or to supply power. It is to the cormorant control.

  In addition, the control circuit includes a current sensor that detects power input from the input terminal and a display unit that displays a current value of power detected by the current sensor, and the control circuit includes a current value of power detected by the current sensor. When the current reaches a predetermined current upper limit value, it is preferable to open the relay unit and to interrupt the power supply or display on the display unit that the power used is exceeded.

  The output terminal is preferably configured as a terminal block.

  ADVANTAGE OF THE INVENTION According to this invention, the power supply system control apparatus which controls a several power supply system easily and aims at power saving can be provided.

(First embodiment)
The configuration of the power system controller according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing a schematic configuration of a power system controller 1 according to the first embodiment of the present invention.

  As shown in FIG. 1, the power system controller 1 includes a control circuit 10, an input terminal 11, output terminals 12 and 13 as terminal blocks, current sensors 15A and 15B, relay units 18 and 19, The contact signal input units 20 and 21, the display unit 22, the DIP switch 23, and the network connection unit 24 are main components.

  The control circuit 10 is a circuit that controls the entire power supply system control device 1, and based on signals from external contact signal input units 20 and 21, a dip switch 23, and a network connection unit 24, which will be described later, Open and close. That is, the control circuit 10 determines which one of the relay units 18 and 19 to be controlled by the input signals from the external contact signal input units 20 and 21 is turned on by opening the target contact and opening it. Turn off. Further, the control circuit 10 outputs a current value of DC power input from a power source (DC) (not shown) via the input terminal 11 to the display unit 22 as a value detected by the current sensors 15A and 15B. Moreover, the control circuit 10 adjusts the power supply to each power supply system of the output terminals 12A, 12B, 13A, and 13B by controlling the opening and closing of the relay units 18 and 19.

  A power source (DC) (not shown) is connected to the input terminal 11, and devices (not shown) are connected to the output terminals 12A, 12B, 13A, and 13B as terminal blocks via cables. Devices that always require power supply are connected to the output terminals 12A and 13A, and devices that do not always require power supply are connected to the output terminals 12B and 13B. In the present embodiment, a device (not shown) is assumed to be a device driven by power supply such as a robot, a servo, an encoder, a fan, or the like used in a factory line.

  The relay unit 18 is disposed between the input terminal 11 and the output terminal 12B, and the opening / closing of the contact is controlled by the control circuit 10 described above. The relay unit 19 is disposed between the input terminal 11 and the output terminal 13B, and the opening / closing of the contact is controlled by the control circuit 10 described above. The relay units 18 and 19 are normally turned on (contacts are closed), and are connected to output terminals 12A, 12B, 13A, and 13B from a power source (DC) (not shown). DC power is supplied to the equipment. When the relay units 18 and 19 are turned off (contacts are open), the power supply (DC) (not shown) is connected to the output terminals 12A, 12B, 13A, and 13B (not shown). The supply of DC power to the equipment is cut off.

  The external contact signal input units 20 and 21 are communication interfaces that receive an operation stop signal ST1 or an operation start signal MS1 to each device (not shown) connected to the output terminals 12A, 12B, 13A, and 13B via cables. It is. For example, when the device is a robot, it receives a servo motor operation stop signal ST1 for operating the robot, or receives a robot arm operation stop signal ST1. When the external contact signal input units 20 and 21 receive an operation start signal MS1 for each device (not shown), it is necessary to supply power before starting each device.

  The display unit 22 displays the values detected by the current sensors 15A and 15B. When the values detected by the current sensors 15A and 15B exceed a predetermined current upper limit value, the control circuit 10 controls the power supply to be cut off or a warning message is displayed on the display unit 22.

  The dip switch 23 is composed of a very small slide switch. Further, the ON / OFF state of the dip switch 23 is made to correspond to the digital level LOW / Hi, which is read by the control circuit 10 when the power supply system controller 1 is turned on, and the predetermined relay units 18 and 19 Opening and closing time can be set. Here, the predetermined opening and closing times of the relay units 18 and 19 can close the contacts only during, for example, the operation time of the factory line (for example, 8 hours from 9 am to 5 pm).

  The network connection unit 24 is a connection unit for controlling the power supply system from a remote terminal 25 via the relay unit 26 and the like. For example, the network connection unit 24 may be configured to arrange a network agent card, a LAN card, and a USB terminal. Here, the network includes a local area network (LAN), a wide area network (WAN), the Internet, and the like. A remote terminal 25 is connected to the output terminal 13 by logging in to the power system controller 1 using a protocol such as SNMP (Simple Network Management Protocol) or TELNET and controlling the relay units 18 and 19. It is also possible to forcibly turn on / off the power supply of the equipment that is being used.

  In this embodiment, the signals input to the network connection unit 24 are the power supply cutoff signal ST2 and the power supply start signal MS2 of one device 29 controlled by the power system controller 1. Each signal is output from the repeater 26 to other power supply system control devices. As described above, when each of the power supply system control devices 1 controls a robot, the output terminals 12A and 13A are connected to devices that cannot be stopped even during holidays such as an encoder and a CPU for controlling the robot, A fan around the robot is connected to the output terminals 12B and 13B. The power supply to the robot itself may be turned ON / OFF by the relay unit 28, but another relay unit may be provided between the commercial power source and the robot.

  In this embodiment, a single power system controller 1 controls one large device, for example, a robot, a machine tool, a copy machine, etc. You may make it control the apparatus of.

(Second Embodiment)
Then, the structure of the power supply system control apparatus which concerns on the 2nd Embodiment of this invention is demonstrated based on FIG. FIG. 2 is a block diagram showing a schematic configuration of a power system controller 1A according to the second embodiment of the present invention. In addition, 1 A of power supply system control apparatuses which concern on the 2nd Embodiment of this invention enable the electric power supply by alternating current power via the input terminal 11 from the commercial power supply (alternating current) not shown. In addition, the power system controller 1A is provided with relay units 18 and 19 between the input terminal 11 and the output terminal 12C and between the output terminals 13C, and the power supply system of the output terminal 13C does not always need to be supplied with power. And a device that always needs to be supplied with power is connected to the power supply system of the output terminal 12C. In addition, the same code | symbol is attached | subjected to the function similar to 1st Embodiment, and description is abbreviate | omitted.

  According to the power system controller 1, 1 </ b> A having the above-described configuration, the relay units 18, 19 are opened and closed by the control circuit 10, and power is supplied to necessary devices for a necessary time. The power supply system can be easily controlled to save power. For example, power is always supplied to devices (for example, encoders, CPUs, etc.) that always require power supply connected to the output terminals 12A, 13A, and 12C, and connected to the output terminals 12B, 13B, and 13C. For devices that do not always require power supply (for example, fans), supply power only during a specific time zone on weekdays, and shut off the power supply by opening the contacts of the relay units 18 and 19 on holidays. Thus, unnecessary power can be cut.

  In addition, since the power supply system control devices 1 and 1A include the network connection unit 24, it is possible to remotely control a plurality of power supply systems, and even if this device is installed in a vast site, The power supply system corresponding to each device can be easily ON / OFF controlled without moving to directly operate the power supply system control device 1.

  In addition, the power supply system control devices 1 and 1A display the current values detected by the current sensors 15A and 15B on the display unit 22 and cut off the power supply when a predetermined current upper limit value is exceeded. Alternatively, since the warning message is displayed on the display unit 22, the current value currently used can be easily grasped, and appropriate power management can be performed based on the detected current value.

  Moreover, since the power supply system control devices 1 and 1A include the output terminals 12A, 12B, 13A, and 13B or the output terminals 12C and 13C as terminal blocks, a large current is required like equipment used in a factory line. It can cope with various devices.

  Further, the power system controller 1A can obtain the same effects as those of the power system controller 1 even when AC power is supplied.

  Although one embodiment of the present invention has been described above, the present invention can be variously modified in addition to this. This will be described below.

  In the above-described first and second embodiments, a configuration in which a commercial power supply (AC) or a power supply (DC) (not shown) is directly connected to the input terminal 11 is employed. However, the present invention is not limited to this configuration. For example, a commercial power source (AC) or a power source (DC) (not shown) is connected to an uninterruptible power supply device or an instantaneous voltage drop protection device as a backup power source, It is good also as a structure which connects the power supply system control apparatuses 1 and 1A which are one embodiment of this invention. By adopting such a configuration, it is possible to safely stop the factory line system in the event of a power failure, and to easily restart the system when the power is restored. Specifically, when a power failure such as a momentary power failure or power failure due to lightning strikes, the system is safely stopped, and necessary facilities are backed up by an uninterruptible power supply or an instantaneous voltage drop protection device. Then, when the power is restored, the power system controller 1, 1A is used. Also, depending on the setting, during a power failure, the power system controller 1, 1A shuts off all power systems and then stops the uninterruptible power system. When power is restored, the power system controller 1, 1A shuts down all power sources. The system can be restarted after the system is energized.

  In the above-described first embodiment, the relay units 18 and 19 are not provided between the input terminal 11 and the output terminals 12A and 13A, and a device that always requires power supply is connected, and the input terminal 11 and the output are connected. Although the relay units 18 and 19 are provided between the terminals 12B and 13B to connect devices that do not always require power supply, the devices and power supply that always require power supply as in the second embodiment. However, the relay units 18 and 19 may be provided in each power supply system for devices that are not always required. In addition, although the first embodiment is described as compatible with DC power, and the second embodiment is described as compatible with AC power, the configuration of the first embodiment is compatible with AC power, and the configuration of the second embodiment is compatible with DC power. It is good.

  In the first and second embodiments described above, the power supply system is described as two systems. However, the present invention is not limited to this configuration. For example, the power supply system may be configured as three systems, four systems, or more systems. . In this case, the output terminals 12A, 12B, 13A, 13B or 12C, 13C need to be increased in accordance with the number of power supply systems. In addition, the external contact signal receiving units 20 and 21 are configured to have two so as to have the same number as the relay units 18 and 19, but may not be the same as the number of relay units 18 and 19.

It is a block diagram which shows the structure of the power supply system control apparatus which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the structure of the power supply system control apparatus which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

1, 1A power system controller 10 control circuit 11 input terminal 12, 13 output terminal (terminal block)
15A, Current sensor 18, 19, 28 Relay unit 20, 21 External contact signal input unit 22 Display unit 23 Dip switch 24 Network connection unit 25 Terminal 26 Relay machine 27 AC battery 29 Equipment ST1 Operation stop signal MS1 Operation start signal ST2 Power supply Shutdown signal MS2 Power supply start signal

Claims (3)

A power system controller for controlling a power system of a plurality of devices,
An input terminal to which power is input;
A plurality of output terminals for outputting power input from the input terminals;
A relay unit disposed in part or all between the input terminal and the plurality of output terminals;
A control circuit for controlling the power supply system of the plurality of devices by controlling opening and closing of the relay unit for each output terminal;
An external contact signal receiving unit for inputting an operation stop signal or an operation start signal of each of the above devices;
A network connection unit that enables power supply control from an external terminal to each of the above devices,
The control circuit opens and closes the relay unit based on the operation stop signal or the operation start signal received by the external contact signal receiving unit, or a signal received from the terminal through the network connection unit, and the device A power supply system control device for controlling power supply to a power supply system to be cut off or to be supplied. In the power supply system control device according to claim 1,
A current sensor for detecting electric power input from the input terminal;
A display unit for displaying a current value of power detected by the current sensor;
With
When the current value of the power detected by the current sensor reaches a predetermined current upper limit value, the control circuit opens the relay unit and cuts off the power supply or exceeds the power used. The power supply system control device, characterized in that the display unit displays. In the power system controller according to claim 1 or 2,
The power supply system control device, wherein the plurality of output terminals are configured as terminal blocks.

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