JP2013112478A - Elevator control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator control device capable of shortening time required to suspend an elevator.SOLUTION: The elevator control device is configured with a plurality of units fixed to an installation frame so as to control hoisting and speed of an elevator car by a motor for driving a rope connected to the elevator car of the elevator, and a motor drive unit for driving the motor is removed from the installation frame and attached to another installation frame for attachment in the vicinity of an established control device so as to allow unit-by-unit replacement with an equivalent function of the established control device by changing or interchanging signal wires.

Description

  Embodiments described herein relate generally to an elevator apparatus control apparatus.

  In general, in elevator renewal work, all control devices for an elevator apparatus are renewed at once. However, it is rare for the latest control devices to match each other, such as the hoistway limit switch at that time, the floor selector that moves in synchronism with the elevator car, and the accompanying signals. The whole method is replaced or a dedicated interface is produced and connected through this. However, in this case, there is a problem that a necessary construction period, in particular, an elevator continuous stop time becomes long.

  If the building has multiple elevators, it can be dealt with by constructing them one by one at different times, but in most apartments up to medium scale, only one is installed. . Then, we would like to renew the elevator equipment, but there was a tendency for more items to be solved in parts other than the main construction, such as planned adjustment with building users and advance preparation of lifting alternative means during the shutdown period .

  In addition, depending on the circumstances, the property to be renewed is prone to problems such as depletion due to repairs and production of replacement parts in addition to aging, and there is a risk of continuing operation while maintaining the current status. high.

  There is known an apparatus in which an elevator control device is divided into a hoisting machine control device and an operation control device that controls the hoisting device control device, and both are separately arranged in a hoistway. However, even in such an elevator apparatus, it takes a long time to replace each control apparatus.

JP 2008-156071 A

  The present invention has been made in consideration of the above points, and the renewed control device can be separated into functional units, and one function of the existing control device is replaced by the separated unit and the elevator. Establish a period of operation. Provided is a control device for an elevator apparatus capable of reducing the time for which the elevator apparatus is continuously stopped during one construction period by performing expansion and function switching work in units of units.

  According to one embodiment, a control device in which a plurality of units for controlling the speed of the elevator car is fixed to an installation frame by a motor that drives a rope connected to the elevator car of the elevator device, It is possible to remove the motor drive unit that drives the motor from the installation frame, attach it to the installation frame in the vicinity of the existing control device, and replace the equivalent function and unit unit of the existing control device by changing the signal line. A control device for an elevator apparatus is provided.

  It is possible to operate this form as an elevator renovation, but by accumulating construction with short-term elevator continuous stop, such as refurbishing another function with another construction period, Finally, a complete renewal of the control device can be realized.

It is a figure which shows the outline of the whole structure of an elevator apparatus. It is a figure which shows the structure of one Embodiment of the control apparatus of an elevator apparatus. It is a figure which shows the example of each control unit fixed to the installation frame in one Embodiment. It is a figure for demonstrating operation | movement when each control unit is replaced | exchanged.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 simply shows the structure of an elevator apparatus.

  The elevator apparatus includes an elevator car 11 on which a person gets on and off, a counter weight 12 that balances the weight with respect to the elevator car 11, a rope 13 that connects the elevator car 11 and the counter weight 12, and the rope. A driving sheave 14 for driving, a rotation driving motor 15 for controlling the rotation of the sheep, and a control device 16 for controlling the rotation driving motor 15 and other operations.

  FIG. 2 shows an electrical block configuration of the control device 16 of the elevator apparatus shown in FIG. The control device 16 includes a power receiving unit 21 that receives power from the outside, a power supply unit 22 that supplies power to the device, an operation control unit 23 that controls the operation of the elevator car 11, and the operation control unit 23. Are attached to the rotary drive motor 15 in order to stop the elevator car at a predetermined floor. The motor drive unit 24 drives the rotary drive motor 15 that winds and lowers the rope 13 that moves the elevator car 11 up and down. A brake control unit 25 that performs brake control, a resistor unit 26 that consumes surplus power when the motor output is limited, a door opening / closing control unit 27 that controls opening / closing of an elevator car door, and an external signal input / output adapter And an interface unit 28. The rotation drive motor 15 can perform positive rotation and negative rotation, and the rotation direction and speed thereof are controlled by the motor drive unit 24.

  FIG. 3 shows a state in which each part constituting the control device 16 is incorporated in the installation block (installation frame) 30 as each unit.

  The power receiving unit 31, the power supply unit 32, the operation control unit 33, the motor drive unit 34, the brake control unit 35, the resistance group unit 36, and the interface unit 38 are the power reception unit 21, the power supply unit 22, and the operation control shown in FIG. This corresponds to the unit 23, the motor drive unit 24, the brake control unit 25, the resistance unit 26, and the interface unit 28. The door opening / closing control unit 27 shown in FIG. 2 is installed in the vicinity of a car door motor (not shown).

  As shown in FIG. 3, an interface unit 38 is incorporated in the lowermost part of the installation frame 30, and the operation control unit 33, power supply unit 32, brake control unit 35, motor drive unit 34, power reception unit 31 are sequentially directed upward. The resistance group unit 36 is incorporated.

  The order of assembling each of these units is arranged so that the larger the amount of heat generated, the higher the amount of heat generated. In particular, the resistance group unit 36 has the largest amount of heat generated, so it is installed at the top.

  The arrangement of FIG. 3 shown here is a basic example. When a restriction in the height direction of the machine room or the like is added, a housing is provided between the power supply unit 35 and the power supply unit 32. Separating and arranging them side by side or back to back can be done freely while maintaining the vertical relationship of the unit.

  Each of these units is a unit in which circuit components are arranged on a substrate, and although not shown in the figure, the units are connected by a connector. The power receiving unit 31 includes a filter that rectifies alternating current and converts it into direct current, and a circuit breaker 31f that interrupts power-on. The electric power converted into direct current by the power receiving unit 31 is input to the power supply unit 32. The power supply unit 32 is a unit that generates power to supply power to each unit.

  The operation control unit 33 controls the operation of the moving floor of the elevator car 11, that is, ascends and descends, and replaces the relay block and hard logic board of the existing control device. Largest scale. Since a power supply voltage different from the conventional power supply and a power supply voltage different from the conventional one are required, the power receiving unit 31 and the power supply unit 32 are required. The operation control unit 33 includes a main controller unit and a controller input / output unit, and the controller input / output unit is connected to the interface unit 38 by a connector unit 39.

  The motor drive unit 34 includes an inverter main circuit constituting a controller and a main circuit contactor 34m. A resistor group unit 36 is required for the power consumption of the inverter main circuit.

  The brake control unit 35 is lightest in terms of work load since the connection change of the input / output wiring is completed after the corresponding module device is attached.

  The resistance group unit 36 is an aggregate of a plurality of resistors and is not used alone, but is used for consuming excess power in combination with the motor drive unit 34.

  Next, a method for renewing the apparatus control unit in this embodiment will be described with reference to FIG.

  First, the motor drive unit 34 is taken out from the installation frame 30 shown in FIG. 3 and fixed to another frame installed near the side surface of the existing control device. Further, the resistance group unit 36 is taken out from the installation frame 30, fixed to another frame installed above the motor drive unit 34, and a circuit connector is connected. The motor drive unit 34 is also connected to a circuit breaker 31f that cuts off the power supply to the main circuit when an abnormality occurs or the safety circuit is disconnected. Next, a motor controller 41 for controlling the motor drive unit 34 is connected to the motor drive unit 34. The motor controller 41 is supplied with power by a power source 42. The motor control controller 41 is supplied with signals for starting (stopping), operating direction, and deceleration start from the existing control device, and controls the motor drive unit 34 to stop the rotation drive motor 15 from rotating.

  Here, the motor control controller 41 is a unit obtained by extracting only the motor control function portion from the operation control unit 33. The rotation drive motor 15 receives the output from the motor drive unit 34 and generates a rotational force. In order to control the output amount of the motor drive unit 34 adapted to the operation direction, the output adjustment, and the deceleration start signal input. The motor controller 41 is required.

  In the present embodiment, the motor controller 41 is described as a sub-unit of the operation control unit 33. However, the motor controller 41 has a function of receiving a signal such as a driving direction and controlling the output to the motor drive unit 34. Therefore, the motor controller 41 may be configured by a programmable controller or the like.

  The rotational drive motor 15 is normally rotationally driven by the output from the motor drive unit 34. However, the operation of the circuit breaker 31f of the motor drive unit 34 operates in synchronization with abnormality detection and a safety circuit signal. In case of danger, the circuit breaker 31f is turned off and the rotary drive motor 15 is stopped. To do.

  On the other hand, since an operation deceleration signal is supplied to the motor controller 41, the rotation speed of the rotary drive motor 15 is reduced via the motor drive unit 34 when deceleration is required.

  In this way, the rotation, stop, and deceleration of the rotary drive motor 15 are temporarily controlled by the motor drive unit 34 and the motor controller 41 that are removed from the installation frame 30, so that the present control device is used as a base. The elevator system operates as before. Further, since the output control is performed, an improved riding comfort can be obtained more than when operating with the existing control device.

  Similarly, the power receiving unit 31, the power supply unit 32, the operation control unit 33, the brake control unit 35, and the interface unit 38 can be replaced with new units in units of functions. Therefore, the elevator apparatus can be actually stopped only when the signal connection to the unit is changed, and in other cases, the operation can be performed while the elevator is in operation.

  According to the above-described embodiment, it is possible to replace each unit attached to the installation frame 30 while operating the elevator apparatus except when the signal wiring connection to the functional unit is changed.

  In the conventional elevator renewal work, the existing control device (not shown) was removed, and the new control device represented by the configuration shown in FIG. 3 was considered to be updated in one work period. It was inevitable that the continuous suspension period would be prolonged including preliminary work such as preparation for change.

  As shown in the embodiment, the continuous stop time can be shortened by adopting a method in which only one of the functions divided as shown in FIG. 4 is replaced with the equivalent function of the existing control device. This means that the elevator can be operated until the unit is attached to the installation frame, and it is necessary to stop only when the connection to the unit is changed.

  In this way, by repeating the repair work in units of unit functions, the stage of operating as an elevator that has been repaired by combining the existing control device and a unit in which some functions are separated and installed from the installation frame 30, Thus, it becomes possible to renew the control device. In most cases, it seems that it will finally approach the final form as a renewal from the existing control device at the time of switching the function with the operation control unit 33, and the total construction period to the final form will not be shortened from the past, but use Shortening of the continuous stop time which imposes inconvenience on the person can be realized reliably.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

11 ... Elevator car,
12 ... Counter weight,
13. Rope,
14 ... Drive sheave,
15 ... Rotary drive motor,
16 .... Control device,
21... Power receiving unit,
22... Power supply unit,
23... Operation control unit,
24... Motor drive unit,
25 .... Brake control unit,
26... Resistance part,
27... Door open / close control unit,
28... Interface part,
30 ... Installation block (installation frame),
31... Power receiving unit,
31f ... Circuit breaker,
32... Power supply unit,
33... Operation control unit,
34... Motor drive unit,
34m ... Main circuit contactor,
35... Brake control unit,
36... Resistance group unit,
38..Interface unit,
39 ··· Connector,
41... Motor control controller,
42: Power supply.

Claims (6)

A control device in which a plurality of units that control the speed of the elevator car is fixed to an installation frame by a motor that drives a rope connected to the elevator car of the elevator device,
It is possible to remove the motor drive unit that drives the motor from the installation frame and install it in the installation frame near the existing control device, and replace the equivalent function and unit of the existing control device by changing the signal line. Elevator device control device. A motor drive unit that controls a rotary drive motor that drives and controls a rope for raising and lowering the elevator car, a brake control unit that brakes the rotary motor to reduce the speed of the elevator car, and a moving floor of the elevator car A control device for an elevator apparatus in which an operation control unit that controls operation and a power supply unit that supplies electric power to each unit are fixed to an installation frame,
The motor drive unit of the existing control device and the operation control signal input to the operation control unit of the existing control device can be used as inputs, and the elevator can be continuously operated by the motor control controller that outputs the motor drive signal to the motor drive unit, The control device for an elevator apparatus, wherein the brake control unit, the operation unit, and the power supply unit are removed from the installation frame and replaced in the same manner as the motor drive unit.   3. The control apparatus for an elevator apparatus according to claim 2, wherein the motor control controller has an independent power source.   4. The control device for an elevator apparatus according to claim 2, wherein the motor control controller is a unit obtained by extracting only a motor control function portion from the operation control unit.   4. The control device for an elevator apparatus according to claim 2, wherein the operation control unit includes a programmable controller.   The control device for an elevator apparatus according to any one of claims 2 to 5, wherein the control device further includes a power receiving unit that receives power supply from outside and supplies the power to the power supply unit.

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