JP2012184091A - Elevator control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve work efficiency in, for example, attaching or adjusting various parts.SOLUTION: An elevator control device is configured, when a low-speed level adjustment mode is selected in an inspection operation mode that moves a car in a hoistway of an elevator at a first low-speed lower than the speed in normal operation mode, to perform control so as to switch the moving speed of the car from the first low-speed to a second low-speed lower than the first low-speed in response to a predetermined start operation to an on-car operation part which is disposed on the car to operate the car. The elevator control device performs control so as to switch the moving speed of the car from the second low-speed to the first low-speed in response to a predetermined restoration operation to the on-car operation part.

Description

  Embodiments described herein relate generally to an elevator control device.

  Conventionally, an elevator moves a car to an arbitrary floor by moving the car in the hoistway. In such an elevator, in order to move the car properly, Various mechanical and electrical components are installed by various methods.

JP 2009-227400 A

  By the way, in the prior art, for example, there is room for further improvement in terms of work efficiency when attaching and adjusting various components.

  The elevator control device according to the embodiment is configured such that when the low speed level adjustment mode is selected in the inspection operation mode in which the car in the elevator hoistway is moved at a first low speed lower than the speed in the normal operation mode, The moving speed of the car is changed from the first low speed to a second low speed lower than the first low speed in response to a predetermined starting operation to a car operating part that is provided on the car and operates the car. Execute switching control. Further, the elevator control device executes control to switch the moving speed of the car from the second low speed to the first low speed in response to a predetermined return operation to the car operating section.

FIG. 1 is a block diagram illustrating a schematic configuration example of an elevator according to the embodiment. FIG. 2 is a block diagram illustrating a functional configuration of the control panel according to the embodiment. FIG. 3 is a flowchart showing an example of an operation time series in the elevator according to the embodiment. FIG. 4 is a schematic diagram illustrating an example of the operation of the elevator according to the embodiment.

[Embodiment]
FIG. 1 is a block diagram illustrating a schematic configuration example of an elevator according to the embodiment, FIG. 2 is a block diagram illustrating a functional configuration of the control panel according to the embodiment, and FIG. 3 is an operation time series in the elevator according to the embodiment. FIG. 4 is a schematic diagram illustrating an example of the operation of the elevator according to the embodiment.

  As shown in FIG. 1, the elevator 1 according to the present embodiment is a so-called elevator type elevator in which a car 3 capable of moving up and down a hoistway 2 and a counterweight 4 as a counterweight are connected by a main rope 5. The elevator 1 includes a hoistway 2, a car 3, a counterweight 4, a main rope 5, a lift drive unit 6, a landing 7, and an elevator control panel as an elevator control device (unless otherwise noted). Simply referred to as “control panel”) 8. The elevator 1 is capable of moving to a landing 7 on an arbitrary destination floor when the driving of each part is controlled by the control panel 8 and the car 3 moves up and down in the hoistway 2.

  The hoistway 2 is provided along the vertical direction of the building. The hoistway 2 is provided over a plurality of floors in the building. The elevating drive unit 6 and the control panel 8 are provided, for example, in a machine room above the hoistway 2. The car 3 is a structure for a user to get on or load a luggage. The car 3 is disposed in the hoistway 2 and can move up and down the hoistway 2. The counterweight 4 is a counterweight that is connected to the car 3 via the main rope 5 and disposed in the hoistway 2, and can move up and down the hoistway 2 in conjunction with the car 3. The main rope 5 connects the car 3 and the counterweight 4. Here, the main rope 5 is hung on the sheave of the hoisting machine 9 of the hoisting drive unit 6 provided at the upper part of the hoistway 2, the car 3 is connected to one end, and the counterweight 4 is connected to the other end. Is done. The raising / lowering drive part 6 is comprised by the hoisting machine 9 etc. which wind up the main rope 5 electrically by driving the motor (motor) 10 etc. which generate | occur | produce the motive power which moves the cage | basket | car 3, for example, Drive is controlled. The landing 7 is provided on each elevator stop floor where the car 3 can be landed, and is a place for the user to get on and off the car 3 and load and unload luggage on the car 3. .

  The control panel 8 includes a CPU (Central Processing Unit) connected to each other by a normal type bidirectional common bus, a ROM (Read Only Memory) pre-stored with a predetermined control program, and a calculation result of the CPU. RAM (Random Access Memory) temporarily stored, a map RAM prepared in advance, a backup RAM for storing information such as the specifications of the elevator 1, a microcomputer having an input / output port device, and a drive circuit.

  The control panel 8 has various types such as a landing detector 11 that detects landing of the car 3 at an appropriate landing position, and a limiter switch 12 for detecting the terminal floor provided at the uppermost and lowermost portions of the hoistway 2. These are electrically connected to each part of the elevator 1 such as a sensor, a detector and the electric motor 10 of the hoisting machine 9, and the operation of each part is comprehensively controlled. For example, the control panel 8 controls the driving of the hoisting machine 9 according to the operation input from the user to the car operation panel 13 and the landing operation panel 14, and designates the car 3 according to the call registration. Move to the floor.

  The elevator 1 configured as described above has a car operation panel 13 and a landing operation panel 14 when a car call operation is performed by a user via the car operation panel 13 and the landing operation panel 14 as a normal operation. A call registration signal is input to the control panel 8, and the control panel 8 performs call registration of the car 3 according to the call registration signal. Then, the control panel 8 makes the respective movements of the car 3 while rationally moving based on the call registration, outputs from various sensors, detectors, the current moving direction (lifting direction) of the car 3, and the like. The landing order of the car 3 is determined so as to respond to the call, the hoisting machine 9 of the elevating drive unit 6 is driven and controlled, and the car 3 is moved to the target floor. As a result, the elevator 1 moves the elevator car 3 up and down in the vertical direction in the hoistway 2 and moves to a landing 7 on an arbitrary destination floor. When the elevator 1 detects that the passenger car 3 has landed at the landing 7 on the destination floor and has landed at a predetermined landing position by the landing detector 11 or the like, the control panel 8 thereafter gets on the elevator 1. Open the car 3 door. As a result, a user waiting at the landing 7 can get into the car 3, and a user inside the car 3 can get off at the landing 7.

  The elevator 1 can be operated by switching the operation mode under the control of the control panel 8. For example, the control panel 8 switches between a normal operation mode and an inspection operation mode in accordance with an operation mode switching operation to a dedicated switch or the like installed in the control panel 8, the car 3, or on the car 3. The elevator 1 can be controlled by switching. Here, the normal operation mode is a normal operation mode selected when the service of the elevator 1 is performed, and a landing call and a car call are registered, and the car 3 is set to a normal operation speed as a response to these calls. This is a mode to move to the target floor. On the other hand, the inspection operation mode is an operation mode selected when an operator performs an inspection operation, and does not accept a landing call or a car call. For example, whether the worker is installed on the car 3. In this mode, when the car operation panel 16 serving as the upper operation unit is operated, the car 3 is moved in a low speed operation for inspection according to the operation.

  Here, the car operation panel 16 is a car operation unit that is provided on the car 3 and operates the car 3, and includes, for example, push buttons such as an Up button, a Down button, and a Common button. When the control panel 8 is in the inspection operation mode, when the operator presses the Common button and the Up button of the on-car operation panel 16 while being in the upper part of the car 3, the car is operated accordingly. 3 is raised at a low speed, and when the Common button and the Down button are pressed, the car 3 is moved down at a low speed accordingly, so that the car 3 can be moved to an arbitrary position.

  By the way, at the time of installation and adjustment of the elevator 1, for example, when the landing detector 11, the limiter switch 12, the shielding plate used for them, and the reflection plate are attached and adjusted, the elevator 1 is appropriately operated. For this reason, it is necessary to mount these parts in the correct mounting position. In this case, the car 3 is actually moved to an appropriate position in the hoistway 2, and at the appropriate position of the car 3, the sensors and detectors detect the car 3, the shielding plate, the reflecting plate, and the like. Position and install as shown. For this reason, as a premise of the installation work of the landing detector 11, the limiter switch 12, etc., the work of accurately moving the car 3 to the target appropriate position is required. Here, for example, the elevator 1 may not be in a state where it can be operated as usual when various sensors, detectors, and the like are not yet attached at the time of installation and adjustment. Alignment to the appropriate position is typically performed using an inspection operation mode in which the car 3 is operated at a lower speed than in the normal operation mode.

  Further, the control panel 8 of the present embodiment operates in the inspection operation mode in which the car 3 is moved at the first low speed (for example, about several tens of m / min) lower than the speed in the normal operation mode as described above. When a low-speed level adjustment mode is selected through an on-board monitor 15 or the like provided integrally with the control panel 8 by an operator, in response to a predetermined activation operation (activation action) on the car operation panel 16 Control for switching the moving speed of the car 3 from the first low speed to a second low speed (for example, about several m / min) lower than the first low speed is executed. Further, when the low speed level adjustment mode is selected in the inspection operation mode, the control panel 8 sets the moving speed of the car 3 to the second speed in response to a predetermined return operation (return action) to the on-car operation panel 16. Control to switch from the low speed to the first low speed is executed. Here, the low speed level adjustment mode selected via the on-board monitor 15 or the like is extremely low, which is lower than the normal inspection speed (first low speed) when the car 3 is in the inspection operation mode according to a predetermined starting operation. This is a mode of operation including an operation of moving at a speed (second low speed).

  Here, the predetermined activation operation on the car operation panel 16 is, for example, a state in which the Up button or the Down button is pressed for a short time (for example, within 0.5 seconds) while the Common button on the car operation panel 16 is pressed. For example, an operation of pressing a plurality of times (for example, about three times) intermittently. The operation of intermittently pressing the Up button or the Down button of the on-car operation panel 16 a plurality of times in a short time corresponds to an operation for performing the operation of moving the car 3 little by little, so-called inching operation. In such inching operation, a predetermined period of time is applied to the electric motor 10 of the hoisting machine 9 for a short period of time until the pressed Up button or Down button is once released and then pressed again. And waits for a command corresponding to the pressing operation of the next Up button or Down button by the worker. The predetermined return operation to the on-car operation panel 16 is, for example, a state in which the Up button, the Down button, and the Common button on the on-car operation panel 16 are all released (ie, a state in which the car is not pressed), that is, the car. For example, the operation of leaving the upper operation panel 16 for a predetermined time (for example, about 10 seconds).

  Note that the predetermined activation operation and the predetermined return operation on the on-car operation panel 16 are not limited to the above operations. The predetermined activation operation on the car operation panel 16 is a series of operations such as turning off the safety switch of the car operation panel 16, pressing the Down button twice in succession, and turning on the safety switch. Also good. The predetermined return operation to the car operating panel 16 is performed by a series of operations such as turning off the safety switch of the car operating panel 16, pressing the Up button twice continuously, and turning on the safety switch. There may be.

  The control panel 8 is operated in such a manner that the common button and the Up button or the Down button of the on-car operation panel 16 are continuously pressed for a long time while the low speed level adjustment mode is selected in the inspection operation mode. In this case, a normal inspection operation for raising and lowering the car 3 at the first low speed is performed. On the other hand, when the low speed level adjustment mode is selected in the inspection operation mode, the control panel 8 is intermittently pressed in a short time when the Up button or the Down button is pressed while the Common button of the on-car operation panel 16 is pressed. When the operation is pressed a plurality of times, a predetermined activation operation is detected, and a low speed level adjustment operation is performed in which the car 3 is moved up and down at a second low speed lower than the first low speed.

  Thereby, the control panel 8 causes the operator to operate the on-car operation panel 16 on the car 3, and according to this, the moving speed of the car 3 is set to the first low speed and the second low speed lower than that. By switching the speed to the appropriate speed and moving the car 3 up and down, the car 3 is quickly moved to the vicinity of the target appropriate position, and after reaching the target appropriate position, the car is moved at a very low speed. 3 can be moved to a desired appropriate position. As a result, the control panel 8 allows the worker to perform the above operations on the car 3 via the car operating panel 16 so that the car 3 can be accurately aligned in a desired proper position in a short time ( Level adjustment), and thus work efficiency can be improved.

  Here, as described above, the elevator 1 is a component necessary for smooth operation, for example, the car 3 in a state where various sensors, detectors and the like are not yet attached at the time of installation and adjustment. In some cases, a load detector or the like for detecting the load is not yet installed. Therefore, the control panel 8 also performs a simple load compensation operation (simple load compensation mode) in a state where the low speed level adjustment mode is selected in the inspection operation mode as described above.

  When the low speed level adjustment mode is selected as the simple load compensation operation, the control panel 8 stores the torque command value to the electric motor 10 when the car 3 travels steady at the first low speed in the storage unit. . In the control panel 8, for example, when the Common button and the Up button or the Down button of the on-car operation panel 16 are continuously pressed for a predetermined time, and the car 3 performs a normal inspection operation at a first low speed for a predetermined time or more. In addition, the current value supplied to the electric motor 10 at this time is detected, and the torque command value corresponding to this is stored. Then, the control panel 8 sets the stored torque command value as a balance torque command value as a torque necessary for balancing the car 3 and the counterweight 4, and thereafter, the low speed level adjustment mode is canceled. Until this time, the control for driving the electric motor 10 is executed in accordance with the balance torque command value, thereby performing simple load compensation.

  Thereby, for example, even when the load detector or the like is not yet installed, the control panel 8 starts driving the electric motor 10 based on the balance torque command value when the car 3 starts to move. By generating a torque according to the balance torque command value in the electric motor 10, it is possible to suppress the occurrence of so-called fishing drop. As a result, the control panel 8 can accurately align (level adjustment) the car 3 to the target appropriate position in a short time without being affected by fishing drop, and further improve the work efficiency. it can.

  The control panel 8 may be configured to be able to control the notification device 17 that can be notified in a plurality of modes. When the predetermined activation operation is detected, the predetermined return operation is detected, and the balance is detected. At the time of setting the torque command value, the notification device 17 may be controlled to perform control in which notification is performed in a different manner.

  The notification device 17 includes, for example, a buzzer provided on the car 3. For example, the control panel 8 rings the buzzer of the notification device 17 once, such as “beep”, when setting the balance torque command value, and the buzzer of the notification device 17 twice, such as “beep”, when a predetermined activation operation is detected. When a predetermined return operation is detected, the buzzer of the notification device 17 is continuously sounded for several seconds, such as “Peep”.

  As a result, the control panel 8 performs notification by sounding the buzzer of the notification device 17 in a different manner when detecting a predetermined activation operation, detecting a predetermined return operation, and setting a balance torque command value. The operator can be alerted appropriately in accordance with the operation of the car 3.

  In the control panel 8 of the present embodiment, the moving direction of the car 3 is reversed according to the operation on the car operating panel 16 in the low speed level adjustment operation in which the car 3 is further moved at the second low speed. If so, reverse operation control is executed. As the reverse operation control, the control panel 8 keeps the on-car operation panel 16 operated, and the stop position of the car 3 when the previous operation on the car operation panel 16 was performed, and the previous on-car operation. A reverse operation is performed in which the car 3 is automatically stopped at an intermediate position with respect to the stop position of the car 3 when the operation to the panel 16 is performed.

  For example, the control panel 8 is depressed every time the low speed level adjustment operation for raising and lowering the car 3 at the second low speed is performed, that is, the Common button and the Up button or the Down button of the on-car operation panel 16 are pressed. Every time, the moving direction of the car 3 and the stop position of the car 3 when the operation is released are stored in the storage unit. Then, when the moving direction of the current car 3 is different from the previous moving direction, the control panel 8 reversely moves the car 3 at the second low speed, and also operates the on-car operation panel 16 while operating the previous time. A reverse operation is performed in which the car 3 is automatically stopped at an intermediate position between the previous stop position and the previous stop position. In this case, after the car 3 is reversed, the control panel 8 sets the speed pattern so that the car 3 stops at the intermediate position including the deceleration braking distance, so that the car 3 is accurately placed in the middle. Stop in position. Thereafter, the control panel 8 is pressed again with the Common button and the Up button or the Down button of the car operation panel 16, and the moving direction of the car 3 at that time is the forward direction (that is, the same direction as the previous time). For example, the low-speed level adjusting operation for raising and lowering the car 3 at the second low speed is performed again. In this case, during the reverse operation of the car 3, the control panel 8 cancels the operation of the car operation panel 16 by the worker before the car 3 reaches the intermediate position after the moving direction of the car 3 is reversed. If it is, the reverse operation is stopped and the car 3 is immediately stopped.

  As a result, the control panel 8 executes the reverse operation control when the moving direction of the car 3 is reversed during the low speed level adjustment operation, so that the car 3 passes through the target proper position. Accordingly, when the worker performs an operation of reversing the moving direction of the car 3, the car 3 can be automatically stopped at a position closer to the target appropriate position. As a result, the control panel 8 can accurately align the car 3 with the target appropriate position in a shorter time, and can further improve the work efficiency.

  Next, an example of a schematic configuration of the control panel 8 will be described with reference to FIG. The control panel 8 illustrated in FIG. 2 includes an on-board monitor operation detector 80, a mode setting unit 81, a normal inspection speed setting unit 82, a very low speed setting unit 83, a continuous operation detector 84, a balance torque simple measuring device 85, Each functional configuration includes a low speed level adjustment mode action detector 86, a speed release counter 87, an inspection operation speed selector 88, an inspection operation control device 89, and the like. These functional configurations are realized, for example, by a program stored in a program ROM of the control panel 8 being read by an arithmetic unit (CPU) and loaded onto the main memory of the control panel 8. These functional configurations do not necessarily have to be realized in the control panel 8, and may be realized in a distributed manner on a plurality of hardware.

  The on-board monitor operation detector 80 detects an operation input to the on-board monitor 15. The mode setting unit 81 sets “simple load compensation mode” + “low speed level adjustment mode” according to the onboard monitor operation of the worker detected by the onboard monitor operation detector 80 in the inspection operation mode. To do. The normal inspection speed setting unit 82 is a normal inspection speed (first low speed) in a normal inspection operation in which the car 3 is moved up and down at a low speed in accordance with the on-board monitor operation detected by the on-board monitor operation detector 80. Is set. The extremely low speed setting unit 83 is configured to operate at a very low speed (second low speed) in a low speed level adjustment operation in which the car 3 is moved up and down at a very low speed in accordance with the onboard monitor operation of the worker detected by the onboard monitor operation detector 80. Speed).

  When the “simple load compensation mode” is set by the mode setting unit 81, the continuous operation detector 84 detects the car 3 based on the operation signals of the Up button, the Down button, and the Common button on the car operation panel 16. Continuous operation (for example, operation of 3 seconds or longer), in other words, steady running of the car 3 at the first low speed is detected. The continuous operation detector 84 detects the continuous operation of the car 3 when, for example, the Common button and the Up button or the Down button are continuously pressed for a predetermined time.

  When the continuous operation detector 84 detects the continuous operation of the car 3, the balance torque simple measuring device 85 is a torque command to the motor 10 when the car 3 is continuously operated (steady travel at the first low speed). The value is stored in the storage unit, and this is set as a simple balancing torque command value for the car 3.

  The low speed level adjustment mode action detector 86 detects a predetermined start operation (start action) in the low speed level adjustment mode based on the operation signals of the Up button, the Down button, and the Common button of the car operation panel 16. . The low-speed level adjustment mode action detector 86, for example, intermittently presses the Up button or the Down button in a short time (for example, an interval within 0.5 seconds) in a state where the Common button of the on-car operation panel 16 is pressed. When an operation of pressing a plurality of times (for example, about three times) is performed, a predetermined activation operation in the low speed level adjustment mode is detected. The speed release counter 87 releases all the Up button, Down button, and Common button of the car operation panel 16 based on the operation signals of the Up button, Down button, and Common button of the car operation panel 16. The non-operation continuation time, which is the time during which the state has continued, is measured.

  The inspection operation speed selector 88 sets the normal inspection speed (first low speed) set by the normal inspection speed setting section 82 and the extremely low speed setting when the “low speed level adjustment mode” is set by the mode setting section 81. On the basis of the extremely low speed (second low speed) set by the unit 83, the predetermined activation operation detected by the low speed level adjustment mode action detector 86, and the no-operation duration measured by the speed release counter 87. The moving speed of the car 3 is selected. The inspection operation speed selector 88 switches the moving speed of the car 3 from the normal inspection speed to an extremely low speed lower than the normal inspection speed when the low speed level adjustment mode action detector 86 detects a predetermined activation operation. The inspection operation speed selector 88 detects a predetermined return operation (return action) when, for example, the no-operation duration measured by the speed release counter 87 continues for a predetermined time (for example, 10 seconds), The moving speed of the car 3 is switched from the extremely low speed to the normal inspection speed.

  The inspection operation control device 89 is selected by the operation signal of the Up button, the Down button, and the Common button of the on-car operation panel 16, the balance torque command value set by the balance torque simple measuring device 85, and the inspection operation speed selector 88. Based on the moving speed of the car 3, the motor 10, the brake control device 18 that brakes the car 3, the notification device 17 and the like are comprehensively controlled to perform normal inspection operation, low speed level adjustment operation, simple load compensation operation, etc. Is to do. Further, the inspection operation control device 89 releases the moving direction of the car 3 and the operation each time the button is pressed based on the operation signals of the Up button, the Down button, and the Common button on the car operation panel 16. The stop position of the car 3 is stored in the storage unit, and the reverse operation is performed based on these positions.

  Therefore, with the above configuration, the control panel 8 causes the normal inspection operation for raising and lowering the car 3 at the first low speed, the low speed level adjusting operation for raising and lowering the car 3 at the second low speed lower than the first low speed, and the balance. Simple load compensation operation that performs simple load compensation according to the torque command value, reverse operation that stops the car 3 at an intermediate position between the previous stop position and the previous stop position even while operating the operation panel 16 on the car. It can be performed appropriately.

  Next, an example of the operation time series will be described with reference to FIG.

  First, the operator switches to the inspection operation mode by the operation mode switching operation to the control panel 8, the car 3 or the dedicated switch installed on the car 3, and the normal inspection speed (first low speed) The normal inspection operation state in which the car 3 is moved up and down at a speed (ST1). Next, the worker selects the low speed level adjustment mode by operating the on-board monitor 15 or the like (ST2).

  When the operator presses the Common button and the Up button or Down button of the on-car operation panel 16 continuously for a long time, the control panel 8 moves the car 3 in accordance with the operation on the on-car operation panel 16. When the vehicle is moved at the normal inspection speed and continuously operated at this normal inspection speed, for example, for 3 seconds or more (ST3), the torque command value to the electric motor 10 at this time is stored in the storage unit, and this is selected during the low speed level adjustment mode selection. A simple balancing torque command value for the car 3 is set (ST4). At this time, the control panel 8 sounds the buzzer of the notification device 17 once, such as “beep”. Thereby, in this elevator 1, it can suppress that a dropout occurs during low-speed level adjustment mode selection.

  Next, when the operator presses the Up button or the Down button intermittently a plurality of times in a short time with the Common button of the on-car operation panel 16 being pressed, the control panel 8 is moved to the on-car operation panel. In response to the operation to 16, a predetermined starting operation in the low speed level adjustment mode is detected (ST5), and the moving speed of the car 3 is changed from the normal inspection speed to a very low speed (second low speed) lower than the normal inspection speed. Switch (ST6). At this time, the control panel 8 sounds the buzzer of the notification device 17 twice, such as “beep”.

  When an operator presses the button in the same direction of the Up button and the Down button, the control panel 8 causes the car 3 to move in the same direction at an extremely low speed in response to an operation on the operation panel 16 on the car. When the operation is continuously performed by the low-speed level adjustment operation to be moved, and the operator operates the reverse button of the Up button and the Down button (ST7), the control panel 8 performs the operation to the operation panel 16 on the car. Accordingly, the car 3 is moved in the reverse direction at an extremely low speed, and the car 3 is moved at an intermediate position between the previous stop position and the previous stop position even when the upper operation panel 16 is operated in the low speed level adjustment operation. A reverse operation to stop is performed (ST8). At this time, during the reversing operation of the car 3, if the worker cancels the operation of the on-car operating panel 16 after the moving direction of the car 3 is reversed and before the car 3 reaches the intermediate position, the control panel 8 stops the reverse operation and stops the car 3 immediately. The worker operates the car operation panel 16 on the car 3 and repeats these operations, thereby moving the car 3 to a target appropriate position.

  Then, when a predetermined time (for example, 10 seconds) or more elapses with the operator releasing all pressing operations of the Up button, the Down button, and the Common button of the on-car operation panel 16, the control panel 8 operates on the car. A predetermined return operation in the low speed level adjustment mode is detected in response to the leaving operation on the panel 16 (ST9), and the moving speed of the car 3 is switched from the extremely low speed to the normal inspection speed (ST10). At this time, the control panel 8 continuously sounds the buzzer of the notification device 17 such as “Peep” for several seconds.

  Next, an example of the operation of the elevator 1 when operated in the above operation time series will be described with reference to FIG. In FIG. 4, “◯” represents an operation of pressing the Up button while pressing the Common button or an operation of pressing the button again (an operation to release the pressed button and then press it again). "Represents a pressing operation or a pressing operation of the Down button in a state where the Common button is pressed.

  When the low speed level adjustment mode is selected in the inspection operation mode, when the car 3 is at the position P1, the operator continuously presses the Up button while pressing the Common button of the car operation panel 16. When the operation is performed, the car 3 is continuously operated in the normal inspection operation and increases at the normal inspection speed (first low speed). During this time, when the car 3 rises continuously at the normal inspection speed for, for example, 3 seconds or more, the control panel 8 changes the torque command value to the motor 10 at this time to the simple balanced torque command value during the low speed level adjustment mode selection. Set to.

  Then, when the car 3 rises to the vicinity of the target proper position and reaches the position P2, the operator presses the Up button intermittently a plurality of times in a short time with the Common button on the car operation panel 16 depressed. When the pressing operation is performed, the car 3 is intermittently operated by the inching operation. Then, when the car 3 passes through the position P3 and the worker presses the third time at the position P4, the car 3 shifts to the low speed level adjustment operation, and the worker operates the operation panel 16 on the car. Accordingly, the speed increases at a very low speed (second low speed) lower than the normal inspection speed.

  Thereafter, the car 3 passes through the target appropriate position. In response to this, when the operator presses the Down button while pressing the Common button of the car operation panel 16 at the position P5, the car is moved. 3 is lowered at an extremely low speed, and the car 3 is automatically stopped at an intermediate position P6 between the previous stop position P5 and the previous stop position P4 even when the car operation panel 16 is operated in the low speed level adjustment operation. Perform reverse operation.

  After the car 3 is automatically stopped at the intermediate position P6, when the operator presses the Down button again while pressing the Common button of the car operating panel 16, the car 3 operates on the car operating panel 16 of the worker. It descends at extremely low speed by low-speed level adjustment operation according to the operation.

  Thereafter, the car 3 again passes through the target appropriate position. In response to this, when the operator presses the Up button while pressing the Common button of the car operation panel 16 at the position P7, The car 3 rises at an extremely low speed, and the car 3 is automatically stopped at an intermediate position P8 between the previous stop position P7 and the previous stop position P6 even when the upper operation panel 16 is operated in the low speed level adjustment operation. Perform reverse operation. At this time, if the worker releases the operation by releasing the Up button on the operation panel 16 immediately above the target proper position while the car 3 is moving up to the intermediate position P8, the car 3 stops the reverse operation. Stop immediately. As a result, the worker can align (level adjustment) the car 3 at a target appropriate position.

  In the control panel 8 configured as described above, the low speed level adjustment mode is selected in the inspection operation mode in which the car 3 in the hoistway 2 of the elevator 1 is moved at a first low speed lower than the speed in the normal operation mode. The moving speed of the car 3 is changed from the first low speed to the first low speed according to a predetermined starting operation to the car operating panel 16 that is provided on the car 3 and operates the car 3. A control for switching to a lower second low speed is executed, and a control for switching the moving speed of the car 3 from the second low speed to the first low speed in accordance with a predetermined return operation to the car operating panel 16 is executed. .

  Therefore, the control panel 8 allows the operator to operate the on-car operation panel 16 on the car 3 and appropriately switch the moving speed of the car 3 between the first low speed and the second low speed lower than the first low speed. As a result, the car 3 can be accurately aligned with the target appropriate position in a short time, and work efficiency can be improved. As a result, the control panel 8 can appropriately secure the mounting accuracy of the landing detector 11, the limiter switch 12, the shielding plate and the reflecting plate used for them while improving the working efficiency and shortening the working time. it can.

  According to the elevator control device according to the embodiment described above, it is possible to improve work efficiency when attaching and adjusting various components.

  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 embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Elevator 2 Hoistway 3 Car 4 Counterweight 5 Main rope 6 Lift drive part 7 Platform 8 Control panel (elevator control device)
9 Hoisting machine 10 Electric motor 11 Landing detector 12 Limiter switch 13 Car operation panel 14 Landing operation panel 15 On-board monitor 16 Car operation panel (car operating section)
17 Notification device 18 Brake control device

Claims (5)

When the low speed level adjustment mode is selected in the inspection operation mode in which the car in the elevator hoistway is moved at a first low speed lower than the speed in the normal operation mode, the car is provided on the car. Executing a control to switch the moving speed of the car from the first low speed to a second low speed lower than the first low speed in response to a predetermined starting operation to the operation unit on the car that performs the operation of Performing a control to switch the moving speed of the car from the second low speed to the first low speed in response to a predetermined return operation to the car operating unit;
Elevator control device. An electric motor that generates power for moving the car is controllable, and when the low speed level adjustment mode is selected, the electric motor to the electric motor when the car travels normally at the first low speed is selected. A torque command value is set to a balance torque command value of the car, and control for driving the electric motor according to the balance torque command value is executed until the low speed level adjustment mode is canceled.
The elevator control device according to claim 1. It is possible to control a notification device that can be notified in a plurality of modes, and to control the notification device when detecting the predetermined activation operation, detecting the predetermined return operation, and setting the balance torque command value Then, control that performs notification in different modes is executed.
The elevator control device according to claim 2. When moving the car at the second low speed, if the moving direction of the car is reversed according to the operation on the car operating part, the previous operation is performed even if the car operating part is operated. At an intermediate position between the stop position of the car when the operation is performed on the operation part on the car and the stop position of the car when the operation is performed on the operation part on the car two times before. , Execute control of reverse operation to stop the car,
The elevator control device according to any one of claims 1 to 3. During the reverse operation, when the operation of the operation unit on the car is released before the car reaches the intermediate position, the reverse operation is stopped and the car is stopped.
The elevator control device according to claim 4.

Images