JPS60183477A - Operating device on service interruption of elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Advanced technology] This invention relates to an improvement in the direct operation of an elevator when the elevator is in a cage.

[Prior art]

In recent years, inverters have come to be used to control the movement of elevators for purposes such as low cost violets, but even in the event of a power outage, this inverter is fully supplied with power from the battery. By doing so, it is especially suitable for operation when the vehicle is stopped.
The inverter control device is absolutely necessary, and furthermore,
A power outage operating device has been proposed that does not include a linear DC-DC converter or a constant pressure circuit i2 corresponding to each node control source that must be provided for power outage operation.

A specific example is shown in FIG. In the figure, (υ is a three-phase current commercial power supply, (2) is the normally open contact of a contactor that is energized when the elevator is running, (3) is a converter that converts three-phase parallel pressure into DC voltage, (4) ), a capacitor that completely smoothes the output i pressure of the converter (3), (5r ttx @ Nagareki pressure, a Zun converter that transforms into the three-phase alternating pressure of the town,
6), Elevator drive hU visit guide, (7), (8
1n −= regenerated power from g ta+? 71 resistors and transistors, (9) fl (inverters (5)
Transistor and raw power cost transistor (8)
Control I! 2 circuits, +10) A three-phase transformer that supplies power to the tri angle control J circuit (9), a battery for retiring during power outages, (12) a normally open contact of a contactor that is energized during a power outage, (] 3J is a diode for supplying voltage from the battery to the 1 inverter during a power outage, 07) i
An inverter that converts the DC voltage from the battery CI'Ll into a three-phase AC 'I voltage. (18) is a contact that opens at a certain time after 1. These are a normally open contact and a normally open contact of a relay that are inserted and connected and are energized when the rain stops, respectively.

With the above scratch i/c'J5-, when the curved goose W (1) is secant, the long point (121, (19)) H is opened and the contact (5)
) is closed, the first inverter (5) generates a voltage output according to the output of the control device (9) to control the rotation speed and torque of the motor (6), and the motor (6)
When power is regenerated from n, Hinoki IJ1 is rejected, and Nao Keke (9) is f1.
The regenerative power is consumed by the resistor (7) by connecting the transistor (81) and the resistor (7).

On the other hand, when W(1) becomes ・θton, the reserve for non-abundance −
Due to the magnetic force from W etc., the V) contact (12) is closed and the terminal (5) @ waterfall 1111I is connected to the terminal +19.
At the same time that the output voltage of the inverter (17) is applied to the inverter (17), the output voltage of the battery 111J is applied to the inverter (17). There is a three-phase flow, and pressure occurs.

On the other hand, the contact (20I is open and the contact (20I is closed, so the transformer (10) is in the negative position) is applied with the three-phase father current pressure that is the output of the 1 inverter 07. Loading box (9)
Power is supplied to the Therefore, if the control device (9) is a commercial koji source (1 n is a positive WJ) or an inno kuichi source (5
) and the regenerative power consumption transistor (8), the torque and rotational speed of the motor (6) are controlled.

However, it becomes a power failure and immediately after contact (4) J is opened, contact (
When 19) is closed, only the short time period used by the control power W is lost. 6(1)'T: Macro computer, gate logic connection? There is a possibility that the hj of the market @ device (9) used will not be depleted at the initial reset, and that the mode switching from the normal Todatsu conversion mode to the conversion mode in the event of a power outage will not be possible. Also, when Turtle W was suspended and power outage operation ended, the contact point (4
)) was closed to the same body as @V, ¥? There is a problem in towns where it becomes impossible to switch the mode from emergency operation to normal operation.

[Shogo Shun of invention]

The present invention aims to eliminate the drawbacks of Kamimura α in the future, and to provide an elevator operating device during a power outage that can reliably switch the retreat mode during a power outage or during a downturn.

[Practice of the invention ν1”] 5- Is the following an example of this invention? The same parts as the first part will be described with the same reference numerals in FIG. 2 and the structure of the sixth part. 2 in Figure 2 (26d).

(26S, (26F) are the contacts of the power supply contactor 1 during normal operation, which will be described later), (28b) are the contacts of the contactor 1 that constantly supplies power when approaching I, (31a, ,) H are the contactors that also operate. All the points (81) are shown, and these contacts can be opened and closed by the mode switching path shown in FIG.

In other words, in the Samurai Hiroki of Figure 3 MIG, three-phase cross-flow commercial power plant, the sinking point (26f) of the main source supply (26f) is enclosed during normal times, and at least the initial reset resistance of the elevator control device (9) is protected. In the event of a power outage, close the supply point (28b) for a while (after closing the contact point (26d)) to perform rescue operation using the battery α power 2 and inverter (17) in the event of a power outage. conduct, lT+]
At the end of the horsefly rescue operation, stop at the end of the horse rescue operation (28b, l)
When the elevator is fully opened and at least the initial reset time of the elevator decoration device (9) has elapsed, the normal frost emitting supply dust point (2
6f) is a mode switching circuit designed to open the contactor (2) shown in the same figure, which connects the contact (2) to (20);
21) has an A contact (22a) for detecting a power outage, and a relay that picks up immediately when a power outage occurs, and has an A contact (24a), (24b), and after a power outage, e.g. 5
Relay to be picked up in seconds W611dm point (2
6a) - (26f) Normal time market, YN Iw contactor picked up 5 seconds after power outage, t
ffl, '[f-ji point (28a) - (28c), and in case of an emergency which picks up six seconds after the stop south, the Ichihara supply contactor, the pickup time difference between the relay 1g+ and the relay is determined by the control device ( 9) Reset F, z from the same 艮＜υ市さγL /), t 7j gl+, t
ai, +'l/I, 1zi+: (qctb, relay 2 and contactor driver 1.

Furthermore, HD5Sfl''i: A signal that becomes VC high for 5 seconds during the stop, a signal that becomes high for 6 seconds after HD6El, and ESTPjL. Then, the signal that becomes low, ESTP2L il″i
Immediately after 'Kaijiku Rei', it became Ha1, ・Anonymous ES TP
A signal that goes low one second after I L goes low,
The difference between the signals ESTPIL and ESTP2L is set to be longer than the reset time of i1]lI#Il19). In addition, the driving condition is 181+l at t801.
d This is a contactor that picks up only when the motor is driven during rescue operation, and is interlocked with the contact point (2) (201).

According to the above) l=P configuration, mode switching can be performed as shown in FIGS. 4 to 6. That is, in the time chart for the case within 5 seconds after a power outage in the fourth figure, in this disconnection, relay 1〃)a picks up, but in the relay example, contactor 12jjl, 1iZl picks up,
Therefore, no rescue operation will be carried out. However, in Figure 5, which is a time chart for the case of long-term suspension, the case of O is approaching the rescue operation. 2. What if the car was already stopped in the door zone at the time of the power outage in the broken line part of the running condition-1id1fi waveform? show. And in Figure 6, during the rescue operation ゛@
When Toshiba Minamoto returned to Japan on the first day of his return, he started the rescue operation, and according to Figures 5 and 6, when he started the rescue operation, the contactor 121jj picked up the contact point (26f).
)' for a predetermined time T+! Pick up a contactor example. Close the contact (28b), and when the rescue operation is complete, fully open the contact (2811) of contactor iA), and after the specified time has passed, contact (26f) of contactor I.
i closed, T> reset time, contact (2
Since the time difference between the opening and closing of 6f) and (28b) is set to be longer than the reset time of the time difference control device (9), mode switching can be carried out easily. Normally, if you don't feel safe driving the motor, use the main inverter (5).
Since the battery u1) is not connected, if the battery is stopped in the door zone from the first power), the capacitor (4),
Even when the internal elements of the transistor (8) and the inverter (5) fail, the door can be opened and closed, and unnecessary power is not consumed. During a power outage, the power supply point will be opened during normal times, and at least the elevator will stop for more than the initial reset time of the elevator control device. driving? At the end of the fertilization rescue operation, the power supply contact is opened when the elevator stops, and the power supply contact is closed when at least the initial reset time of the elevator control device has elapsed. It is possible to reliably switch the operation mode when power is restored.

[Brief explanation of the drawing]

9- Fig. 1 is a circuit diagram showing a conventional example, Figs. b) Schematic diagram, Section 4.5.6
The figure shows a time chart of the operation of each part in Figure 3.
Figure 4 shows the case where the power outage lasts for 5 seconds or longer, Figure 5 shows the case of a long-term power outage, and Figure 6 shows the case of double power. (3): Converter (5): First inverter. )
:・Electric motor (9): Control fit table 1 section (10); Transformer (Bot: Battery (i7)) : Inverter (211: 'I'..., Detection Re-Blow 1: Hiratomi time'a source supply Contactor 2: Emergency supply contactor
Masuo Oiwa - 10 - Showa year, month, day 21 Name of the invention Elevator operation equipment during power outage 3, relationship to the amendment case Patent applicant address 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name Name
(601) Mitsubishi Electric Co., Ltd. Representative Hitoshi Katayama 4, Agent Address 2-2-3 Marunouchi, Chiyoda-ku, Tokyo, Japan Detailed description of the invention and drawings in the specification. (11 6. Contents of the amendment (1) The statement “operation during power outage” in the second line of page 3 of the specification is amended to “operation during power outage j.” (2) Lines 1 to 2 of page 4 of the same document Delete the statement "r(18) in line 1 is a contact that opens due to power outage." (3) Delete the statement ``r(20) in line 19 on page 6 of the same book is a contactor with contact (2).'' r (2) ID sliding contact 2
(a) "A contactor for normal operation with a)". (4) In the same book, page 6, line 20, the statement "detection relay, (22)" is corrected to "detection relay, (21(a) is its normally closed contact, (22) is"). (5 ) "The above relays (22) and (2)" on page 7, line 7 of the same book.
4] has been changed to ``The above contactors (26) and (28)
Correct it with J. (6) “Contactor (2) of contact (2)” in page 7, line 20 of the same book.
The description 01 will be corrected to "contactor for normal running (2)". (7) "In case of within 5 seconds after power outage" in page 8, line 4 of the same book
The statement "1- In the case of a short-term power outage of 5 seconds or less" has been corrected. (8) In the same book, page 8, line 9 to line 1O, the statement ``The running condition (30) is'' was replaced with ``The contactor (30)
1) is corrected. (9) Figures 2 to 6 in the drawings shall be amended as shown in the attached sheets. 7. Catalog of attached documents At least 1 copy 3 -

Claims (2)

[Claims] (1) A converter that converts all of the direct current power to direct current, and converts the output voltage of the upper GT converter to variable frequency direct current to control the elevator-driving electric power supply. The first 1 inverter, the above-mentioned @ 1 (D'I inverter control city 2), and the above 6-go city 1' transformer ti, which directly covers the sore throat, and the A battery that generates 9 volts of power from the above one inverter, and a voltage controller for this battery, is connected to one inverter that changes its output during a power outage to the primary side of the transformer (/c). and a second 1 inverter which operates the above-mentioned power converter, and 1 of the upper 80 transformer.
The normal kW supply point that connects the Bunryu W between the upper and lower DCs, and the Okiryujiba source supply point that connects the primary part of the above transformer and the second impertain area of the upper part of the transformer. and? In addition to being prepared, in the event of a power outage, leave the normal power supply point A and close the supply contact during a power outage for at least the initial reset time of the elevator control f1 equipment to perform a rescue operation in the event of a power outage.
At the end of the rescue operation, the power supply contact in case of power outage is fully opened, and after the initial reset time of at least one elevator limit has elapsed, the power supply contact in case of power outage is switched to standby mode equipped with a mode switching circuit. A device that changes when the elevator stops or stops. (2) The above mode t7I support circuit is when the motor is driven,
In addition, only the upper platform that performs the continuous rescue operation has a battery source supplied to the first inverter. Device.