WO2019171423A1

WO2019171423A1 - Elevator control device and elevator control method

Info

Publication number: WO2019171423A1
Application number: PCT/JP2018/008304
Authority: WO
Inventors: 昭之鳥谷
Original assignee: 三菱電機株式会社
Priority date: 2018-03-05
Filing date: 2018-03-05
Publication date: 2019-09-12
Also published as: JPWO2019171423A1; JP6821086B2; CN111788138B; CN111788138A

Abstract

This elevator control device comprises a first controller that executes safety monitoring control, a second controller that controls operation of a car, a first power supply line that is always supplied power, and a second power supply line that switches, on the basis of a control signal output from the first controller, to one of either a power supply state or a shutoff state. The second controller determines from the operation status of the car whether to place the second power supply line in the shutoff state and sends a shutoff request command to the first controller when it has been determined to place the second power supply line in the shutoff state; when the shutoff request command is received from the second controller, the first controller outputs a control signal so that the second power supply line is placed in the shutoff state.

Description

Elevator control device and elevator control method

The present invention relates to an elevator control device and an elevator control method for reducing power consumption.

Conventionally, there has been proposed an elevator control device that cuts off power supply to devices other than the call registration device and suppresses power consumption when the operation state of the elevator is in a quiet state (see, for example, Patent Document 1).

Japanese Patent No. 5158484

However, the prior art has the following problems.
Consider a case where such a function for suppressing power consumption is applied to an elevator equipped with a safety control device independent of the elevator control device. In this case, as a result of partial power cut-off, for example, the B contact signal of the safety relay is turned OFF and a relay ON failure (main contact fixing failure) is erroneously detected. It is possible to end up.

In order to solve such a case, it is necessary for the safety control device to perform a masking process or the like that invalidates a part of the signal processing based on the power-off information. Here, since the soundness of the safety relay cannot be ensured during the mask processing, the interruption performance is lost, but the safety can be maintained by turning off the power.

Also, in the configuration in which the power supply is shut off on the elevator control device side, the safety control device performs mask processing based on information on the control device side that is a non-safety system. Further, in such a configuration, power supply interruption as an alternative function is also left to the control device side. Therefore, the safety control device is not established as an independent safety device.

The present invention has been made to solve the above-described problems, and an object thereof is to obtain an elevator control device and an elevator control method excellent in energy saving performance while maintaining a safety monitoring function by the safety control device. To do.

An elevator control device according to the present invention includes a first controller that executes safety monitoring control of an elevator system, a second controller that controls operation of an elevator car, a first power supply line that is constantly supplied with power, and a first control. A second power supply line that is switched to a power supply state or a cut-off state based on a control signal output from the controller, and the second controller cuts off the second power supply line from the operation state of the car. If it is determined whether or not to make a cutoff state, a cutoff request command is transmitted to the first controller, and the first controller receives the cutoff request command from the second controller In this case, a control signal is output so that the second power supply line is in a cut-off state.

The elevator control method according to the present invention includes a first controller that executes safety monitoring control of the elevator system, a second controller that controls the operation of the elevator car, a first feed line that is constantly powered, An elevator control device comprising: a second power supply line that is switched to either a power supply state or a cut-off state based on a control signal output from one controller, and is executed by the first controller and the second controller In the elevator control method, in the second controller, it is determined whether or not the second power supply line is to be cut off from the operation state of the car. A command transmission step for transmitting a cutoff request command to the first controller, and when the first controller receives a cutoff request command from the second controller, When the control output step for outputting the control signal to output the control signal for shutting off the second feed line in response to the shutoff request command in the first controller, the second controller On the other hand, in the response transmission step of transmitting a cutoff response indicating that the second power supply line is in a cutoff state, and in the second controller, by reading a normally closed contact signal whose one end is connected to the second power supply line. And a mask processing step for executing a mask process for invalidating the on-failure check when a cutoff response is received from the first controller when the on-failure check is executed.

According to the present invention, on the basis of a control signal output from a control unit that performs safety monitoring, power supply to an energy-saving power supply line is interrupted to realize energy saving, and power supply cutoff control can be executed as a safety function. It has a configuration. As a result, an elevator control device and an elevator control method excellent in energy saving performance can be obtained while maintaining a safety monitoring function by the safety control device.

1 is an overall configuration diagram of an elevator system including an elevator control device according to Embodiment 1 of the present invention. In the elevator control apparatus which concerns on Embodiment 1 of this invention, it is the flowchart which showed the series of operations performed by the operation control unit. In the elevator control apparatus which concerns on Embodiment 1 of this invention, it is the flowchart which showed the series of operation | movement performed by the door open travel protection unit. It is a whole block diagram of the elevator system containing the elevator control apparatus in Embodiment 2 of this invention. It is a whole block diagram of the elevator system containing the elevator control apparatus in Embodiment 3 of this invention.

Hereinafter, preferred embodiments of the elevator control device and the elevator control method of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is an overall configuration diagram of an elevator system including an elevator control device according to Embodiment 1 of the present invention. The elevator control device according to the first embodiment shown in FIG. 1 includes two door opening travel protection units (UCMP) 10 corresponding to safety control devices and a travel control unit (CC) 20 that controls the operation of the elevator. It has a controller.

A circuit group controlled by these two

controllers

10 and 20 or notifying each

controller

10 and 20 of a contact state is an energy saving power supply circuit 31, a safety relay circuit 32, a door switch circuit 33, a safety chain circuit 34, a main circuit. A brake power supply / cutoff circuit 35, a relay contactor brake contact circuit 36, and a sensor contact circuit 37 are configured.

Further, as the power supply lines for the two

controllers

10 and 20 and the circuit group, there are provided two systems of a constant power supply line indicated by a thick solid line and an energy saving power supply line indicated by a thick dotted line.

Moreover, the elevator apparatus controlled by the elevator control apparatus which concerns on this Embodiment 1 is shown by the upper stage of FIG. As a general configuration, the elevator apparatus includes a commercial power source 1, a driving device 2, a power conversion device 3, an encoder 4, a scale device 5 installed in a car, and a braking device 6. In addition, since the structure itself of this elevator apparatus is not the characteristic of this invention, detailed description is abbreviate | omitted.

The constant power supply line is connected to the commercial power source 1 via the power conversion device 3, and power is constantly supplied. On the other hand, the energy-saving power supply line is always connected to the power-supply line via the energy-saving power supply circuit 31, and power supply and interruption are controlled by the on / off state of the energy-saving power supply circuit 31.

Examples of the device that is constantly supplied with power from the power supply line include the following.
-Door open travel protection unit (UCMP) 10
・ Operation control unit (CC) 20
-Car movement detector (encoder) 4 connected to the motor in the drive unit 2
・ Weighing device 5 installed in the cage
・ B contact signal for detecting brake release state BK1, BK2
・ Platform car call button, in-car destination floor registration button, car inward door open button

The energy saving power circuit 31 includes an energy saving power relay SV that cuts off power supply to the energy saving power line. The coil of the energy saving power relay SV is always supplied with power from the power supply line, and is controlled to be driven and shut off by the door-open travel protection unit (UCMP) 10.

The safety relay circuit 32 includes a safety relay SFR that cuts off a safety chain circuit 34 described later. The coil of the safety relay SFR is supplied with power from an energy-saving power supply line, and is controlled to be driven and disconnected by a door-open travel protection unit (UCMP) 10. The state of the B contact of the safety relay SFR connected to the energy saving power supply line is input to the door-opening travel protection unit (UCMP) 10.

The door switch circuit 33 is configured by connecting a car door switch and a landing door switch in series via an energy saving power supply line. The door opening / closing state by the door switch circuit 33 is input to the door opening travel protection unit (UCMP) 10.

The safety chain circuit 34 is configured by connecting the A contact of the safety relay SFR and the B contact of other safety switches in series from the energy saving power supply line. A primary power source of a main circuit / brake power supply / cutoff circuit 35 described later is configured to perform power supply and power supply cutoff from the energy saving power supply line via the safety chain circuit 34.

The main circuit / brake power supply / cutoff circuit 35 includes a main circuit contactor MC that supplies power to the main circuit and cuts off the power supply, and a brake relay BK that supplies power to the brake coil of the braking device 6 and cuts off the power supply. ing.

The coil of the main circuit contactor MC is fed from the secondary side of the safety chain circuit 34. On the other hand, the coil of the braking relay BK is fed from the secondary side of the safety chain circuit 34 via the A contact of the main circuit contactor MC. Both the coil of the main circuit contactor MC and the coil of the braking relay BK are controlled to be driven and disconnected by the door-open travel protection unit (UCMP) 10.

The relay / contactor / brake contact circuit 36 includes B contacts of the main circuit contactor MC and the braking relay BK connected to the energy saving power supply line. The state of each B contact is input to the door-open travel protection unit (UCMP) 10. The relay / contactor / brake contact circuit 36 further includes BK1 and BK2 which are B contacts of the brake relay BK always connected to the power supply line. The states of BK1 and BK2 are also input to the door-open travel protection unit (UCMP) 10.

The detector contact circuit 37 is composed of B contacts of a fire alarm, an earthquake detector, and a submersion sensor that are always connected to the power supply line. The state of these B contacts is input to the operation control unit (CC) 20.

Whether the operation control unit (CC) 20 is in a state where the energy-saving power supply can be cut off by determining whether or not the elevator can be stopped from the operation control state of the elevator apparatus that is managed by the operation control unit (CC) 20 Judge whether or not. When the operation control unit (CC) 20 determines that the elevator can be stopped and is in a state where the energy-saving power supply can be shut off, the operation control unit (CC) 20 gives a request to the door-opening travel protection unit (UCMP) 10. Sends an energy-saving power-off request with information set.

On the other hand, when it is determined that the operation control unit (CC) 20 is not in a state where the energy-saving power supply can be cut off, the information on “no request” is set for the door-opening travel protection unit (UCMP) 10. Send a request.

On the other hand, the door-opening travel protection unit (UCMP) 10 that has received the request for shutting down the energy-saving power supply responds to a command “requested” from the operation control unit (CC) 20 to save the energy-saving power in the energy-saving power supply circuit 31. The coil of the relay SV is cut off, and the power supply to the energy saving power supply line is cut off.

On the other hand, the door-opening travel protection unit (UCMP) 10 that has received the request for shutting down the energy-saving power supply responds to the “no request” command from the operation control unit (CC) 20 to enable the energy-saving power relay SV in the energy-saving power circuit 31. Energize without shutting off the coil and maintain power supply to the energy-saving power supply line.

The door-opening travel protection unit (UCMP) 10 returns an energy-saving power supply cutoff response to the operation control unit (CC) 20 as a response to the energy-saving power supply cutoff request. Specifically, the door-opening travel protection unit (UCMP) 10 sets the information “OFF” when the coil of the energy-saving power supply relay SV in the energy-saving power supply circuit 31 is cut off, and does not cut it off. In this case, set “no shutdown” information and send back an energy-saving power-off response.

Next, a series of operations in which the door-opening travel protection unit (UCMP) 10 and the operation control unit (CC) 20 are interlocked with each other will be specifically described.

When the elevator starts, the door-opening travel protection unit (UCMP) 10 drives the energy-saving power relay SV and sets “no shut-off” information in the energy-saving power-off response. As a result, power is also supplied to the energy saving power line, and the door-opening travel protection unit (UCMP) 10 validates contactor / relay ON failure detection.

On the other hand, when the elevator is started, the operation control unit (CC) 20 sets “no request” information in the energy-saving power-off request and validates contactor / relay ON failure detection.

When there is no contactor / relay ON failure, the operation control unit (CC) 20 monitors the operation status of the elevator and determines whether or not the elevator can be stopped. When the operation control unit (CC) 20 determines that the elevator is in a state where the elevator can be stopped, the operation control unit (CC) 20 issues a request for shutting down the energy saving power set with “requested” information to the door-opening travel protection unit (UCMP) 10. Output.

On the other hand, when the door-opening travel protection unit (UCMP) 10 inputs an energy-saving power supply cutoff request in which information of “Requested” is set from the operation control unit (CC) 20, it cuts off the energy-saving power supply relay SV, Disable contactor relay ON failure detection. At the same time, the door-opening travel protection unit (UCMP) 10 outputs an energy-saving power-supply cutoff response in which information “cutting off” is set to the operation control unit (CC) 20.

On the other hand, when the operation control unit (CC) 20 inputs an energy-saving power-off response with information “cut off” set from the door-opening travel protection unit (UCMP) 10, the contactor / relay ON failure detection is invalidated. Turn into. Further, the operation control unit (CC) 20 constantly monitors various signals connected to the power supply line. Specifically, the operation control unit (CC) 20 monitors the following states.
・ Brake forcibly released by BK1 and BK2 (B contact signal)
・ Brake slip state by encoder 4 ・ Passenger detection state by scale device 5 ・ Disaster occurrence state by sensors (B contact signal)

Furthermore, although not shown in FIG. 1, the operation control unit (CC) 20 can monitor the detection state of the safety switch operation.

When the operation control unit (CC) 20 detects an abnormal state due to at least one of the events as a result of the state monitoring, the operation control unit (CC) 20 sets “no request” information in the energy-saving power-off request. And output to the door-opening travel protection unit (UCMP) 10.

When the door open travel protection unit (UCMP) 10 inputs an energy-saving power-off request in which “no request” information is set, it drives the energy-saving power relay SV to enable contactor relay ON failure detection. To do. The door-opening travel protection unit (UCMP) 10 also drives the energy-saving power relay SV to detect contactor / relay ON failure detection when it detects an abnormality in the components of the door-opening travel protection unit (UCMP) 10 itself. Activate.

Furthermore, the door-opening travel protection unit (UCMP) 10 sets “no shutoff” information in the energy saving power supply interruption response in a state where the energy saving power supply relay SV is driven, and the operation control unit (CC) 20 Output.

The door opening travel protection unit (UCMP) 10 does not operate normally when the signal through the B contact of the safety relay SFR is not turned off when the energy saving power relay SV is cut off. That is, it is determined that a failure has occurred. When the door opening travel protection unit (UCMP) 10 determines that the energy saving power supply circuit 31 has failed, the door opening travel protection unit (UCMP) 10 drives the energy saving power relay SV, supplies power to the energy saving power supply line, and disables the energy saving function. To do.

In the above, a series of operations in which the door opening travel protection unit (UCMP) 10 and the operation control unit (CC) 20 are interlocked with each other has been described. Next, regarding this series of operations, the door-opening travel protection unit (UCMP) 10 and the operation control unit (CC) 20 will be divided into respective units, and the individual series of individual operations will be described based on a flowchart.

First, the operation of the operation control unit (CC) 20 will be described. FIG. 2 is a flowchart showing a series of operations executed by the operation control unit (CC) 20 in the elevator control apparatus according to Embodiment 1 of the present invention.

In step S201, the operation control unit (CC) 20 determines whether or not initial setting is being performed. If the operation control unit (CC) 20 determines that the initial setting is being performed, the operation control unit (CC) 20 executes the process after step S202. If the operation control unit (CC) 20 determines that the initial setting is not being performed, the operation control unit (CC) 20 executes the process after step S204.

When the process proceeds to step S202, the operation control unit (CC) 20 sets “no request” information in the energy-saving power-off request, and sends an energy-saving power-off request to the door-opening travel protection unit (UCMP) 10. Output.

Next, in step S203, the operation control unit (CC) 20 is in a state where power is also supplied to the energy-saving power supply line, so the contactor relay ON based on the contact information from the relay contactor brake contact circuit 36 is used. The failure detection is validated and the series of processes is terminated.

On the other hand, when the process proceeds from step S201 to step S204, the operation control unit (CC) 20 determines whether or not information “no request” is being set in the energy-saving power supply cutoff request. When the operation control unit (CC) 20 determines that the “no request” information is being set, the operation control unit (CC) 20 executes the processing after step S205 and determines that the “no request” information is not being set. In step S208 and subsequent steps, the process is executed.

When the process proceeds to step S205, the operation control unit (CC) 20 is in a state where power is also supplied to the energy-saving power supply line. Therefore, based on the contact information from the relay / contactor / brake contact circuit 36, It is determined whether or not the contactor / relay is in a failure state. If the operation control unit (CC) 20 determines that the contactor / relay ON failure state has not occurred, the operation control unit (CC) 20 executes the processing from step S206 onward. If the operation control unit (CC) 20 determines that the contactor / relay ON failure state has occurred, the operation control unit (CC) 20 finish.

When the process proceeds to step S206, the operation control unit (CC) 20 determines whether or not the elevator can be stopped from the operation control state of the elevator device that is managed by the operation control unit (CC) 20 itself. When it is determined that the operation control unit (CC) 20 is in a state that can be paused, the operation control unit (CC) 20 executes the processes in and after step S207.

When the process proceeds to step S207, the operation control unit (CC) 20 determines that the condition for cutting off the energy-saving power supply line has been prepared, sets “requested” information in the energy-saving power supply cut-off request, and performs the door-open running protection. An energy-saving power supply cutoff request is output to the unit (UCMP) 10, and the series of processes is terminated.

On the other hand, when the process proceeds from step S204 to step S208, the operation control unit (CC) 20 is set with the information “no interruption” as the energy saving power supply interruption response from the door-opening travel protection unit (UCMP) 10. Determine whether or not. When the operation control unit (CC) 20 determines that the information “no interruption” is set, the operation control unit (CC) 20 executes the processing after step S209, and the information “no interruption” is not set. When it is determined that the information “blocking is present” is set, the processing after step S211 is executed.

When the process proceeds to step S209, the operation control unit (CC) 20 is in a state where power is also supplied to the energy-saving power supply line, so based on the contact information from the relay / contactor / brake contact circuit 36, It is determined whether or not the contactor / relay is ON. When the operation control unit (CC) 20 determines that the contactor / relay ON failure state has occurred, the operation control unit (CC) 20 executes the processing after step S210. finish.

When the process proceeds to step S210, the operation control unit (CC) 20 sets “no request” information in the energy-saving power-off request, and issues an energy-saving power-off request to the door-opening travel protection unit (UCMP) 10. Output, and the series of processing ends.

On the other hand, when the process proceeds from step S208 to step S211, the operation control unit (CC) 20 is in a state in which no power is supplied to the energy-saving power supply line, and therefore contact information from the relay / contactor / brake contact circuit 36. Disable contactor relay ON fault detection based on.

Next, in step S212, the operation control unit (CC) 20 determines whether or not the following state is detected.
・ Whether or not a passenger is detected on the basis of monitoring of the detection result by the scale device 5 ・ Whether or not a state where the brake is forcibly released is detected on the basis of monitoring of the contact signals of BK1 and BK2 ・ Encoder Was the brake slipping state detected based on the detection result monitoring by No. 4?-Was the disaster occurrence state detected based on the detection result monitoring by the detectors?
Here, the “state in which the elevator can be stopped” corresponds to a case where there is no car call, destination floor registration, car door open button input, remote activation request, or the like.

When at least any one or more states are detected as a result of the state monitoring described above, the operation control unit (CC) 20 executes the processing after step S213, and any state is not detected. In this case, the series of processing ends.

When the process proceeds to step S213, the operation control unit (CC) 20 sets “no request” information in the energy-saving power-off request, and sends an energy-saving power-off request to the door-opening travel protection unit (UCMP) 10. Output.

Further, in step S214, the operation control unit (CC) 20 validates the contactor / relay ON failure detection based on the contact information from the relay / contactor / brake contact circuit 36, and ends the series of processes.

Next, the operation of the door opening travel protection unit (UCMP) 10 will be described. FIG. 3 is a flowchart showing a series of operations executed by the door-open travel protection unit (UCMP) 10 in the elevator control apparatus according to Embodiment 1 of the present invention.

In step S301, the door-opening travel protection unit (UCMP) 10 determines whether or not initial setting is being performed. When it is determined that the door opening travel protection unit (UCMP) 10 is being initially set, the process after step S302 is executed, and when it is determined that it is not being initially set, the process after step S305 is executed. To do.

When proceeding to step S302, the door-opening travel protection unit (UCMP) 10 drives the energy-saving power relay SV and supplies power to the energy-saving power supply line.

Next, in step S <b> 303, the door-opening travel protection unit (UCMP) 10 sets information “no interruption” in the energy saving power supply interruption response, and outputs an energy saving power supply interruption response to the operation control unit (CC) 20. .

Next, in step S304, the door-opening travel protection unit (UCMP) 10 is in a state where the power is also supplied to the energy-saving power supply line, and therefore, the contactor based on the contact information from the relay contactor brake contact circuit 36 is used. The relay ON failure detection is validated, and the series of processing ends.

On the other hand, when the process proceeds from step S301 to step S305, the door-opening travel protection unit (UCMP) 10 determines whether or not the energy saving power relay SV is being driven. When the door-opening travel protection unit (UCMP) 10 determines that the energy-saving power relay SV is being driven, the door opening travel protection unit (UCMP) 10 executes the processing from step S306 onward, and if it is determined that the energy-saving power relay SV is not being driven. Then, the processing after step S310 is executed.

When the process proceeds to step S306, the door-opening travel protection unit (UCMP) 10 determines that the contactor / relay ON failure has not occurred and the energy saving power supply circuit 31 is based on the contact information from the relay / contactor / brake contact circuit 36. It is also determined whether or not there is no failure.

When the door opening travel protection unit (UCMP) 10 determines that the contactor / relay ON failure is not caused and the energy-saving power supply circuit 31 is not in failure, the process after step S307 is executed. When it is determined that the relay is in an ON failure or the energy saving power supply circuit 31 is in a failure state, the series of processing ends.

When the process proceeds to step S307, the door-opening travel protection unit (UCMP) 10 determines whether or not an energy-saving power-off request in which “requested” information is set is output from the operation control unit (CC) 20. to decide.

When the door-opening travel protection unit (UCMP) 10 determines that the energy-saving power-off request in which “requested” information is set is output from the operation control unit (CC) 20, the processing from step S308 is performed. When the operation control unit (CC) 20 determines that an energy-saving power supply cutoff request in which “requested” information is set has not been output, the series of processes ends.

When the process proceeds to step S308, the door-opening travel protection unit (UCMP) 10 invalidates the contactor / relay ON failure detection based on the contact information from the relay / contactor / brake contact circuit 36.

Furthermore, in step S309, the door-opening travel protection unit (UCMP) 10 cuts off the energy saving power relay SV, cuts off the power supply by the energy saving power supply line, and ends the series of processes.

On the other hand, when the process proceeds from step S305 to step S310, the door-open travel protection unit (UCMP) 10 determines whether or not the safety relay SFR is being driven. Specifically, the door-opening travel protection unit (UCMP) 10 can determine that the SV relay has been cut off when the signal through the B contact of the safety relay SFR is turned off.

When it is determined that the safety relay SFR is being driven, the door-opening travel protection unit (UCMP) 10 performs the processing from step S311 onward, and if it is determined that the safety relay SFR is not being driven, The process after S315 is executed.

When the process proceeds to step S311, the door-opening travel protection unit (UCMP) 10 has passed the preset time when the safety relay SFR is being driven even though the energy saving power relay SV is not driven. Judge whether the timeout has been reached.

When the door-opening travel protection unit (UCMP) 10 determines that the time-out has been reached, it executes the processing from step S312 onwards. If it is determined that the time-out has not occurred, an abnormality in the energy-saving power supply circuit 31 is detected. It is determined that there is not, and the series of processes is terminated.

When the process proceeds to step S312, the door-opening travel protection unit (UCMP) 10 determines that an abnormality of the energy saving power supply circuit 31 has been detected.

In step S313, the door-opening travel protection unit (UCMP) 10 drives the energy saving power relay SV to supply power to the energy saving power supply line.

Further, in step S314, the door-opening travel protection unit (UCMP) 10 is in a state where the power is also supplied to the energy saving power supply line, so the contactor relay based on the contact information from the relay contactor brake contact circuit 36 is provided. The ON failure detection is validated and the series of processes is terminated.

On the other hand, when the process proceeds from step S310 to step S315, the door-opening travel protection unit (UCMP) 10 sets “shutdown” information in the energy-saving power supply cutoff response, and the operation control unit (CC) 20 Outputs an energy-saving power-off response.

Next, in step S316, the door-opening travel protection unit (UCMP) 10 determines whether or not an energy-saving power cutoff request in which “no request” information is set is output from the operation control unit (CC) 20. .

When the door-opening travel protection unit (UCMP) 10 determines that the energy-saving power-off request in which “no request” information is set is output from the operation control unit (CC) 20, the processing after step S 317 is performed. When the operation control unit (CC) 20 determines that an energy-saving power supply cutoff request in which “no request” information is set has not been output, the series of processes ends.

When the process proceeds to step S317, the door-opening travel protection unit (UCMP) 10 drives the energy-saving power relay SV and supplies power to the energy-saving power supply line.

Next, in step S318, the door-opening travel protection unit (UCMP) 10 is in a state where power is also supplied to the energy-saving power supply line. Therefore, the contactor-based operation based on the contact information from the relay contactor brake contact circuit 36 is used. Enable relay ON fault detection.

Further, in step S319, the door-opening travel protection unit (UCMP) 10 sets “no interruption” information in the energy saving power supply interruption response, and outputs an energy saving power supply interruption response to the operation control unit (CC) 20, A series of processing ends.

As described above, the elevator control device according to Embodiment 1 has the following configuration and effects.
The first controller corresponding to the safety control device receives the energy saving power cutoff request command from the second controller that controls the operation of the elevator, and transmits an energy saving power cutoff response to the second controller.
・ Equipped with two power supply lines: a constant power supply line and an energy-saving power supply line that is cut off when the elevator is stopped for energy-saving purposes.
Each component device of the elevator system is divided into a first device group that is always connected to the power supply line and a second device group that is an energy-saving power supply line.
-The first controller corresponding to the safety control device receives the energy-saving power supply cutoff request command from the second controller, cuts off the power supply to the energy-saving power supply line based on its own control output, and the second device By cutting off the power supply to the group, energy saving can be realized and power supply cutoff control can be executed as a safety function.

The second controller that controls the operation of the elevator receives an energy-saving power supply cutoff response from the first controller corresponding to the safety control device, so that the energy-saving power supply line is in a power supply state or is in a power supply cutoff state Can be determined. And the 2nd controller can perform easily the mask process of the failure detection by a normally closed contact based on this judgment result.
In other words, the first controller corresponding to the safety control device can perform the masking process of the failure detection by the normally closed contact based on its own output signal for cutting off the power supply, and maintains the safety monitoring performance. be able to.

Embodiment 2. FIG.
In the first embodiment, the first controller corresponding to the safety control device and the second controller that controls the operation of the elevator are the door opening travel protection unit (UCMP) 10 and the operation control unit (CC) 20. The case where the control unit is configured as an individual control unit has been described. On the other hand, in the second embodiment, a case will be described in which two control programs are provided in one control unit to realize the same function as the elevator control device according to the first embodiment. .

FIG. 4 is an overall configuration diagram of an elevator system including the elevator control device according to Embodiment 2 of the present invention. In the second embodiment, an integrated control CPU 100 is provided as one controller. And in this integrated control CPU100, the door opening traveling protection program 110 which performs the function equivalent to the door opening traveling protection unit (UCMP) 10 demonstrated in previous Embodiment 1 and the previous Embodiment 1 are carried out. The operation control program 120 which performs the function equivalent to the operation control unit (CC) 20 demonstrated is mounted.

In other words, the configuration of the second embodiment is a configuration in which the integrated control CPU 100 executes the functions of both the first controller corresponding to the safety control device and the second controller that controls the operation of the elevator. Yes.

The door-opening travel protection program 110 that realizes the function of the safety control device receives an energy-saving power-off request from the operation control program 120 that realizes the elevator operation control function, and transmits an energy-saving power-off response to the operation control program 120 To do.

The function of the door-opening travel protection program 110 is equivalent to the door-opening travel protection unit (UCMP) 10 in the first embodiment, and the function of the operation control program 120 is the operation control in the first embodiment. This is equivalent to the unit (CC) 20 and will not be described in detail.

As described above, according to the second embodiment, the same function as the elevator control device according to the first embodiment can be realized by providing two control programs in one control unit.

Embodiment 3 FIG.
In the first embodiment, the first controller corresponding to the safety control device and the second controller that controls the operation of the elevator are the door opening travel protection unit (UCMP) 10 and the operation control unit (CC) 20. The case where the control unit is configured as an individual control unit has been described. On the other hand, the elevator control device according to the third embodiment has a basic configuration using individual control units including a first controller corresponding to a safety control device and a second controller that controls the operation of the elevator. Although the same, the case where the circuit group connected to each control unit is different from the first embodiment will be described.

FIG. 5 is an overall configuration diagram of an elevator system including the elevator control device according to Embodiment 3 of the present invention. In the third embodiment, the first controller corresponding to the safety control device is configured by the terminal floor overspeed monitoring unit (SETS) 11, and the second controller that controls the operation of the elevator is the operation control unit (CC ) 21.

As is clear from a comparison between FIG. 5 and FIG. 1, the connection configuration of the circuit groups to the individual control units is different between the third embodiment and the first embodiment. An energy-saving power supply circuit 31 and a safety relay circuit 32 are connected to the terminal floor overspeed monitoring unit (SETS) 11 corresponding to the safety control device in the third embodiment.

On the other hand, the operation control unit (CC) 21 for controlling the operation of the elevator according to the third embodiment includes a safety chain circuit 34, a main circuit / brake power supply / cutoff circuit 35, a relay / contactor / brake contact circuit 36, and a sensor. An analog contact circuit 37 is connected.

Further, the third embodiment shown in FIG. 5 illustrates a configuration in which the door switch circuit 33 is not mounted.

Although the elevator control apparatus according to the third embodiment is different from the first embodiment in the configuration and connection of the circuit group, the basic concept having the following configuration and effects is the same as in the first embodiment. It is the same.
The first controller corresponding to the safety control device receives the energy saving power cutoff request command from the second controller that controls the operation of the elevator, and transmits an energy saving power cutoff response to the second controller.
・ Equipped with two power supply lines: a constant power supply line and an energy-saving power supply line that is cut off when the elevator is stopped for energy-saving purposes.
Each component device of the elevator system is divided into a first device group that is always connected to the power supply line and a second device group that is an energy-saving power supply line.
-The first controller corresponding to the safety control device receives the energy-saving power supply cutoff request command from the second controller, cuts off the power supply to the energy-saving power supply line based on its own control output, and the second device By cutting off the power supply to the group, energy saving can be realized and power supply cutoff control can be executed as a safety function.

Whether the energy saving power supply line is in a power supply state or in a power supply cutoff state by receiving a response to cut off the power saving power from the first controller corresponding to the safety control device, the second controller that controls the operation of the elevator Can be judged. And the 2nd controller can perform easily the mask process of the failure detection by a normally closed contact based on this judgment result.
In other words, the first controller corresponding to the safety control device can perform the masking process of the failure detection by the normally closed contact based on its own output signal for cutting off the power supply, and maintains the safety monitoring performance. be able to.

As described above, according to the present invention, in any of the configurations of the first to third embodiments, power supply to the energy-saving power supply line is interrupted based on the control signal output from the control unit that performs safety monitoring. In addition to realizing energy saving, it is possible to realize a configuration capable of executing power supply cutoff control as a safety function. As a result, it is possible to obtain an elevator control device with excellent energy saving performance while maintaining the safety monitoring function of the safety control device.

1 commercial power supply, 2 drive device, 3 power conversion device, 4 encoder, 5 weighing device, 6 braking device, 10 door open travel protection unit (first controller), 11 terminal floor overspeed monitoring unit (first controller) 20, 21 Operation control unit (second controller), 31 Energy-saving power supply circuit, 32 Safety relay circuit, 33 Door switch circuit, 34 Safety chain circuit, 35 Main circuit / brake power cut-off circuit, 36 Relay / contactor / brake contact Circuit, 37 sensor contact circuit, 100 integrated control CPU (first controller and second controller), 110 door open travel protection program, 120 operation control program.

Claims

A first controller for executing safety monitoring control of the elevator system;
A second controller for controlling the operation of the elevator car;
A first feed line that is constantly fed;
A second power feed line that is switched to either a power feed state or a cut-off state based on a control signal output from the first controller;
With
The second controller determines whether or not the second power supply line is to be cut off from the operation state of the car, and if it is determined to be in the cut off state, the second controller Send a shutdown request command,
When the first controller receives the cutoff request command from the second controller, the first controller outputs the control signal so as to put the second power supply line in the cutoff state.
When the first controller outputs the control signal for setting the second power feed line to the shut-off state in response to the shut-off request command, the first controller supplies the second power feed line to the second controller. Sends a block response indicating that it is in the block state,
The second controller receives the cutoff response from the first controller when performing an on-failure check by reading a normally closed contact signal having one end connected to the second power supply line. The elevator control apparatus according to claim 1, wherein a mask process for invalidating the on-failure check is executed.
A first controller for executing safety monitoring control of the elevator system;
A second controller for controlling the operation of the elevator car;
A first feed line that is constantly fed;
A second power feed line that is switched to either a power feed state or a cut-off state based on a control signal output from the first controller;
In an elevator control device comprising: an elevator control method executed by the first controller and the second controller,
In the second controller, from the operation state of the car, it is determined whether or not the second power supply line is to be cut off. A command transmission step for transmitting a blocking request command;
In the first controller, when the cutoff request command is received from the second controller, a control output step of outputting the control signal so as to put the second feed line in the cutoff state;
In the first controller, when the control signal for setting the second power feed line to the shut-off state is output in response to the shut-off request command, the second power feed line is sent to the second controller. An answer sending step for sending a block answer indicating that is in the block state;
In the second controller, when the on-failure check is executed by reading the normally closed contact signal having one end connected to the second power supply line, the cutoff response is received from the first controller. In the case, a mask processing step for executing a mask processing for invalidating the on-failure check;
An elevator control method.