JPH02233480A - Controller for elevator group management - Google Patents

Abstract

PURPOSE:To prevent an emergency elevator from being affected by power failure in the event of electric failure on a passenger's side by supplying the power to a controller for group management and a hall call device through an ordinary elevator, and using only a control signal line for group management in connection between the emergency elevator and the controller for group management. CONSTITUTION:An emergency elevator controller 2C is shut off from control for group management at the time emergency operation, and taking into consideration single operation (not in connection with hall call) as emergency service, the power to a hall call memory device 5 and a controller 1 for group management is supplied by ordinary elevator controllers 2A, 2B. On the other hand, the hall call memory device 5 and the controller 1 for group management which is apt to burn off are installed on ordinary M/R side, and as the control signals between the controller 1 for group management and the emergency elevator, the ones that have passed an electric insulating circuit 7 are used.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to an emergency elevator control system, and particularly to an elevator group that controls an emergency elevator and a general elevator as one group. Regarding management control equipment. (Prior Art) When controlling emergency elevators and general elevators as one group, there are rules based on various laws and regulations, and when the emergency elevator is in emergency operation, it is not affected by the general elevator.

In other words, emergency elevators are used for firefighting purposes in the event of a fire in a building, so even if they are installed in the fire prevention section of a building and are group-controlled together with general elevators, the elevator machine room is a separate room. Of course, even if a general elevator burns down,
It is said that it can be operated without any abnormalities. However, in order to control elevators as a group, it is necessary to exchange group control signals between the group control control device and each elevator, so if a general elevator burns down, the signal line may be grounded, etc. Various negative effects occur. Therefore, conventionally, as shown in Fig. 3, the machine rooms of the emergency elevator and the general elevator were separated by a wall CL, and the emergency elevator control system 1i! CP1 and general elevator CP2 are connected by a connection cable WP, and the connection cable WP is connected to a separation panel S.
It can be separated by CP.

By the way, the disconnection board has a built-in relay and the like to electrically cut off the exchange of signals between the control devices CPI and CP2 in the event of an emergency. Therefore, even if part or all of the control device 1icP2 of the general elevator causes an accident such as grounding, if the signal exchange is cut off by the disconnection panel SCP, the effect will not spread to the control device of the emergency elevator. It can be done.

Figure 4 shows a power matching circuit for supplying power to a conventional hall call device and group management control device, and in the figure DI, D
2 is 11 for emergency and passenger use! A block diode is installed to prevent power source interference, Fl and F2 are fuses for power protection, and Vl.
V2 indicates the power supply, E S (b) is the separation board SCP
The b contact of the relay ES, which operates in an emergency, is shown, and is configured to be disconnected in an emergency as described above.

(Problem M to be solved by the invention) As mentioned above, although a disconnection board is installed, the discovery of the emergency is delayed, and the hall call registration device installed on the general side is grounded. As shown in FIG. 4, if the power supply is affected, it may become impossible to operate in an emergency. Furthermore, according to the regulations, different power sources are supplied to the passenger and emergency elevators. However, the secondary power source, which passes through a transformer, etc., is matched as shown in Figure 4, with two points on the ground. As a result, the passenger and emergency elevators are mutually affected by 'IIi source noise and the like on the common line during normal times. Although it is ideal to provide a disconnection board SCP, it not only makes the circuit complicated and expensive, but also adds a disconnection contact that has little relation to the signal line, which reduces reliability.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art described above and to provide a group management control system having a highly reliable emergency elevator.

[Structure of the invention]

(Means for Solving the Problems) A feature of the present invention is that in a group management control device that controls emergency elevators and general elevators, the emergency elevator is separated from the group management control during emergency operation, and is operated independently as an emergency operation. (operation unrelated to hall calls), the power to the hall call registration device and the group management control device is supplied only from the general elevator, and the power to the hall call registration device and the group management control device connected to the above is The management control device is installed on the general M/R side, and the control signals between the group management control device and the emergency elevator are electrically isolated signals.

(Function) As a result, the general elevator side and the emergency elevator are completely electrically isolated, avoiding the influence of abnormal power supply to the emergency elevator, and the control line is electrically isolated. Therefore, it is only necessary to disconnect the common line, which simplifies the configuration compared to the conventional one, reduces the number of disconnecting panels SCP, and improves reliability. (Embodiment) An embodiment of the present invention will be described.

FIG. 1 is a block diagram of one embodiment of the present invention.

Groups A and B are for passenger use, C is for emergency use, and the service floor is the 3rd floor. Note that the hall calls on the 1st and 2nd floors usually have UP and DN, but in this embodiment, only one direction is available.

1 in the figure is the group management control device. 2A to 2C are each control unit, C
L is a bulkhead, and 3A to 3C are control signals connected to the group management control device 1 and each elevator (for example, the direction of elevator movement for ascending and descending indicating the status of each machine, the car position, the car call occurrence status, and the inside of the car) Depending on the load etc. and assignment from group management, the service floor command) is connected directly to Units A and B, and connected to Unit C through electrical insulation 7 (for example, configured with contacts, fort couplers, etc.). Ru.

4A to 4C are cancellation signals for assigned calls, and A and B
1 to 3 directly for Unit No. 1, and through electrical insulation 7 for Unit C.
F is connected to another. 5 indicates a hall call from 1%W (IF) to the third floor (3F), which is connected to the group management control unit N1.

6A and 6B are block diodes for supplying power from the &A and B cars to the group management control device 1, and the detailed configuration is that of the conventional passenger elevator section shown in FIG. 4.

FIG. 2 shows one embodiment of the electrical isolation circuit 7, which is installed in the emergency NQC, and 2 [" Indicates the assigned signal, and ES (b2) is the relay ES that turns ON in case of emergency.
NCC is the NC side common line of the NctC machine, PC is the (+) power supply from the group control panel, and 7 is the fort coupler.

In FIG. 1, power is supplied to the group management control device 1 and the hall call 5 connected thereto from passenger elevators A and B. For example, when 3F of the hall call 5 is pressed, the group management control device 1 and the hall call 5 connected to it are supplied with power. Depending on the group management control circuit, mC
When the No. 3 car is assigned to that call, the 3rd floor assignment signal is output to the NaC through the group control signal 3C.For details, 3FC shown in FIG. 2 outputs the ONL. Through Fort 7, the 3FCC signal of Run C is turned on, and the response circuit of NaC car (not shown) is activated, causing Car C to respond to the hall call on the third floor.

here. When the NaC emergency operation is activated, E S (b2) in FIG. 2 is ONL and the 3FC signal is cut off.

In addition, even if a power failure occurs on the passenger side before the N (LC) enters emergency operation, all signals to the NQC unit are electrically isolated and will not have any effect on the power line of the &C unit. do not have.

An electrical insulation effect can be obtained by using an optical cable as the power insulation.

〔Effect of the invention〕

According to the present invention, due to the electrical insulation between the passenger side and the emergency elevator, an electrical abnormality on the passenger side, especially an abnormality in the power supply, does not affect the emergency elevator, and the power is supplied to the passenger side and the emergency elevator respectively. Since the source is grounded to the earth, the power supply and signal are extremely stable, and the control signal is simple due to the power isolation, and only the common can be disconnected, eliminating the need for a disconnection board.Also, Because it is connected to the elevator under group management control like a group control panel,
A panel that is easily affected and susceptible to fire is installed in the M/R of the general elevator, and by separating it from the control panel of the emergency elevator, it is possible to prevent the impact of a fire, etc. on the emergency elevator. can be eliminated.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing an embodiment of the present invention, Fig. 2 is an electrical insulation circuit diagram showing an embodiment of the invention, Fig. 3 is a conventional elevator installation diagram, and Fig. 4 is a conventional elevator installation diagram. It is a power supply circuit diagram for the management panel. 1...Group management control device 2A, 2B...Passenger elevator control device 2C...Emergency elevator control device 3A-3C...Group allocation signal 4A-4C...Elimination signal 5...Call registration 6A,
6B...Block diode for power supply connection 7...Electrical isolation circuit Figure 1

Claims (1)

[Claims] (1) Elevator group management that controls a hall call device installed on each floor and, in response to the hall call, a general elevator and an emergency elevator installed in a fire prevention area separate from the general elevator. In the control device, the group management control device is installed on the side of a general elevator, the hall call device and the group management device are connected, and
A group of elevators characterized in that power is supplied to the group management control device and the hall call device from a general elevator, and the connection between the emergency elevator and the group management control device is only a group management control signal line. Management control device.