JP2010052849A - Elevator apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator apparatus for ascending or descending a car by a plurality of hoisting machines without inducing malfunction. <P>SOLUTION: The elevator apparatus includes: separately and independently arranged first and second drive control units 19 and 20 to drive and control the first and second hoisting machines 8 and 12; an operation management unit 18 which are arranged separately and independently from the drive control units 19 and 20, and output control commands to the drive control units 19 and 20; and a serial communication line 21 to connect the operation management unit 18 and the drive control units 19 and 20. The operation management unit 18 sends and receives information at a certain communication cycle. The drive control units 19 and 20 send and receive information based on the information sent from the operation management unit 18. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator apparatus that drives a plurality of hoisting machines to raise and lower one car.

  In an elevator apparatus that raises and lowers a car in a hoistway such as a machine room-less elevator apparatus, the hoisting machine is used in order to make as much space as possible for raising and lowering the car in the same hoistway. It is required to reduce the size of the device. However, an elevator apparatus with a large transport capacity requires a motor with a large output, so there is a limit to the miniaturization of the hoisting machine, and there is a problem that the size of the hoistway where the hoisting machine is arranged becomes large. there were.

  Therefore, instead of a large-capacity hoisting machine, multiple small hoisting machines with small capacities are arranged in the hoistway, and each hoisting machine is driven simultaneously to lift the car while dispersing the load. An apparatus has been proposed (see, for example, Patent Document 1).

  However, as described above, in an elevator apparatus that drives a plurality of hoisting machines to raise and lower a single car, the outputs of the plurality of hoisting machines that raise and lower one car and the suspension of each hoisting machine It is necessary to make the tensions of the ropes equal to each other, and the purpose cannot be achieved only by individually controlling the speed of each hoisting machine.

  Therefore, as a control device for such an elevator device, each hoisting machine, a drive control device that controls driving of each hoisting machine, and a speed command that realizes cooperative driving of each hoisting machine are output to each drive control device. What consists of the operation management apparatus to do is proposed. (For example, see Patent Document 2)

  Furthermore, in order to improve the layout of the control device of such an elevator device and to make effective use of the space in the hoistway, the functions necessary for each drive control device and operation management device are summarized. In general, each drive control unit and operation management unit are configured and arranged on a serial transmission line.

JP 2002-145544 A JP 2005-289532 A

  According to the above-described prior art, a plurality of hoisting machines can be reliably synchronized, and a stable drive can be performed by correcting position / speed errors and vibrations due to differences in rope elongation and the like. However, by adopting a configuration in which the drive control unit and the operation management unit are separated and independent as in the above prior art, each drive control unit and the operation management unit are based on control clocks output by different clock oscillators. Processing is performed asynchronously. In order to control the speed of each hoisting machine in cooperation, a speed control command is transmitted from the operation management unit to each drive control unit at a constant cycle determined from the response band of the speed control, and each drive In the control device, it is necessary to return the control state of each hoisting machine in synchronization with this period.

  Here, if the operation management unit and each drive control unit are controlled by the same control clock, it is necessary to transmit a clock signal from one clock oscillator to another unit via a clock signal line. The control clock is a high-frequency signal, and if an attempt is made to increase the transmission length, the signal waveform may change due to the impedance of the signal line or external noise, which may cause malfunction. Therefore, there is a problem that the degree of freedom of wiring of each unit is greatly limited.

  The present invention has been made to solve the above-described problems of the prior art, and by ensuring that the control clock is not synchronized between the units by the clock signal line, the degree of freedom of arrangement of each unit is ensured, and a plurality of windings are provided. The elevator apparatus which raises / lowers one car by the upper machine is provided.

  The elevator apparatus according to the present invention is an elevator apparatus that drives a single car based on the first and second hoisting machines, and the first and second hoisting machines that are separately and independently arranged to drive and control the first and second hoisting machines. And a second drive control unit, an operation management unit that is separately and independently arranged from the first and second drive control units, and outputs a control command to the first and second drive control units, and the operation management A serial communication line connecting the unit and the first and second drive control units, and the operation management unit transmits and receives information at a constant communication cycle, and the first and second drive controls. The unit transmits and receives information based on the information transmitted from the operation management unit.

  According to the elevator apparatus according to the present invention, control commands and status information are exchanged at regular intervals between the operation management unit, which is separately and independently arranged on the serial communication line, and each operation control unit and each drive control unit. Therefore, it is possible to obtain an elevator apparatus that does not require the synchronization of the control clock using the clock signal line and that does not limit the degree of freedom of arrangement of each unit.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an elevator apparatus according to the present invention will be described with reference to the accompanying drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
An elevator apparatus according to Embodiment 1 of the present invention will be described. 1 is a block diagram of an elevator apparatus according to Embodiment 1 of the present invention, and FIG. 2 is an internal block diagram of the control apparatus for the elevator apparatus shown in FIG. FIG. 3 is a configuration diagram of a communication packet used in the elevator apparatus shown in FIG.

  In FIG. 1, an elevator apparatus 1 according to Embodiment 1 includes a drive device 3 that raises and lowers a car 2, and a control device 4 that controls the operation of the drive device 3. The drive device 3 includes a first hoisting machine 8 including a first electric motor 5, a first brake 6, and a first sheave 7, a second electric motor 9, a second brake 10, and a second sheave 11. The second hoisting machine 12 is provided.

  The first rope 13 is suspended from the first sheave 7 and the first deflecting wheel 14, and one end thereof is engaged with the car 2 and the other end is engaged with the counterweight 15. The second rope 16 is suspended from the second sheave 11 and the second deflecting wheel 17, and one end thereof is engaged with the car 2 and the other end is engaged with the counterweight 15.

The control device 4 manages the operation of the car 2 and outputs a control command necessary for cooperatively driving the first hoisting machine 8 and the second hoisting machine 12, and the operation management unit 18. A first drive control unit 19 that receives the control command from the first hoisting machine 8 and controls the drive of the first hoisting machine 8;
Similarly, a second drive control unit 20 that receives a control command from the operation management unit 18 and controls the drive of the second hoisting machine 12 is provided. The operation management unit 18, the first drive unit 19, and the second drive unit 20 are connected by a serial communication line 21, and the operation management unit 18 uses the transmission packet 200 to transmit the first drive control unit 19 and A control command is output to each of the second drive control units 20, and the first hoisting machine 8 and the second hoisting are sent from the drive control units 19 and 20 to the operation management unit 18 using a reply packet 300. The control information of the machine 12 is returned. That is, the operation management unit 18, the first drive unit 19, and the second drive unit 20 are separately and independently disposed on the serial communication line 21.

  In FIG. 2, the operation management unit 18 includes an operation management operation unit 22 that performs operation management operation of the car 2, a communication control unit 23 that controls communication with the first and second drive control units 19 and 20, and a control clock. And a clock oscillator 24 that controls the operation cycle of the operation management calculation unit 22 and the communication control unit 23 is provided.

  The operation management calculation unit 22 is an elevator management unit 22a that determines the operation mode, the traveling direction of the car 2, and the dispatch to each floor from the call in the landing or the car 2 or the state of each hoistway device. Compensation calculated by the cooperative drive control unit 22b that calculates a compensation control command value for eliminating the difference from the difference between the control states of the machine 8 and the second hoisting machine 12, and the speed pattern of the car 2 and the compensation calculated by the cooperative drive control unit 22b The speed control command unit 22c for calculating the speed command values of the first hoisting machine 8 and the second hoisting machine 12 from the control command value, and output of sequence control commands such as power supply permission to the main circuit and brake release permission When an abnormal signal is detected from the sequence control command unit 22d, the safety device provided in the hoistway or the car 2, and the first drive control unit 8 and the second drive control unit 12, The chromatography data system 1 comprises a safety circuit 22e for emergency stop.

  The communication control unit 23 stores the transmission packet data and the memory 23a that temporarily stores the received packet data, and the transmission packet data on the memory 23a via the serial communication line 21 through the first drive control unit 8 and the second drive control unit 12. The communication I / F 23b and the communication I / F 23b that receive the reply packet data from the first drive control unit 8 or the second drive control unit 12 and store them in the memory 23a, and transmission permission and reception Transmission / reception control unit 23c that controls the timing of transmission / reception by outputting a permission command, abnormality detection that detects communication errors such as parity errors, framing errors, overrun errors, etc. A first unit ID 23e1 for identifying the circuit 23d and the first drive control unit 8; Beauty second unit ID23e2 is provided with a driving unit ID list 23e which is registered to identify the second drive control unit 12.

  In FIG. 3, a transmission packet 200 includes a packet head code 211 that identifies the head of packet data, a transmission packet code 212, and a transmission destination ID 213 that specifies a transmission destination unit ID from the drive control unit ID list 23e of the communication control unit 23. Broadcast communication information 214 for storing control commands for both the first drive control unit 19 and the second drive control unit 20, and the unit designated by the transmission destination ID among the first drive unit 19 or the second drive unit 20 It consists of individual communication information 215 for storing individual control commands, error correction information 216 used for transmission packet data consistency check and error correction control, and a packet end code 217 for identifying the end of packet data.

  The broadcast communication information 214 includes first and second hoisting machine speed commands 214 a and 214 b for the first hoisting machine 8 and the second hoisting machine 12 calculated by the speed control commanding part 22 c of the operation management computing unit 22. Contains. The individual communication information 215 includes a sequence control command 215a including a main circuit power supply command output by the sequence control command unit 22d of the operation management calculation unit 22, a brake release command, and a safety circuit output from the safety circuit 22e. An operation command 215b is included.

  Returning to FIG. 2, the first drive control unit 19 and the second drive control unit 20 include first and second drive control calculation units 25, 26 that perform drive control calculation of the first and second hoisting machines 8, 12. Controls the first and second communication control units 27 and 28, the first and second drive control calculation units 25 and 26, and the first and second communication control units 27 and 28 that control communication with the operation management unit 18. First and second clock oscillators 30 and 31 for outputting a clock and controlling a calculation cycle are included.

  The first drive control calculation unit 25 and the second drive control calculation unit 26 detect first and second control information for detecting control information including rotation speeds and current values of the first and second hoisting machines 8 and 12. 1st and 2nd winding from control information detected by sections 25a and 26a, first and second control information detection sections 25a and 26a and first and second hoisting machine speed commands 213a and 213b of transmission packet 200 First and second hoist control units 25b and 26b for driving and controlling the machines 8 and 12, first and second sequence control for performing power feeding to the main circuit, brake release control, etc. according to a sequence control command of the transmission packet 200 The first and second sections 25c and 26c perform an emergency stop operation such as forcibly cutting off the main circuit power supply or restraining the brake by the safety circuit operation command 215b of the transmission packet 200. 2 safety circuit 25d, 26 d, first and second respective abnormal signal detection unit 25e detects the abnormal signal of the first and second hoisting machine 8,12 and each device includes 26e.

  The first and second communication control units 27 and 28 receive the transmission packet data from the first and second memories 27a and 28a and the operation management unit 18 that temporarily store the received packet data and the reply packet data. The first and second communication I / s that are stored in the second memory 27a and the second memory 27a, and that return packet data on the first and second memories 27a and 28a are transmitted to the operation management unit 18 through the serial transmission line 21. F27b, 28b, first and second communication I / Fs 27b, 28b, first and second transmission / reception control units 27c, 28c for controlling transmission / reception timing by outputting transmission permission and reception permission commands, parity error, framing Communication errors such as errors and overrun errors and garbled received data are judged to detect communication errors That the first and second abnormality detection circuit 27d, 28d, first and second drive unit ID27e identifying the own unit includes 28e.

  In FIG. 3 again, the reply packet 300 includes a packet head code 311 for identifying the head of the packet data, a reply packet code 312, and the first or second drive unit IDs 27e and 28e of the first or second communication control unit 27 and 28. Among the transmission source ID 313 for specifying the transmission source from the first or second drive control unit 19 or 20, individual communication information 314 for storing individual communication information of the drive unit specified by the transmission source ID 313, the reply packet data It consists of error correction information 315 used for consistency check and error correction control, and a packet end code 316 for identifying the end of packet data.

  The individual communication information 314 is the first or second hoisting machine detected by the first control information detection unit 25a of the first drive control calculation unit 25 or the second control information detection unit 26a of the second drive control calculation unit 26. 8 and 12 hoisting machine control information 314a and various abnormal signals 314b detected by the first abnormal signal detector 25e or the second abnormal signal detector 26e.

  Next, the operation of the elevator apparatus according to Embodiment 1 configured as described above will be described with reference to FIGS. FIG. 4 is a time chart showing the operation of the elevator apparatus according to the first embodiment, and FIG. 5 is a flowchart showing the operation of the first and second drive control units 19 and 20.

  In FIG. 4, Δtcc is a calculation cycle of the operation management calculation unit 22 and the communication control unit 23 controlled by the clock oscillator 24 mounted on the operation management unit 18, and Δtmd 1 is a first clock mounted on the first drive control unit 19. The calculation cycle of the first drive control calculation unit 25 and the first communication control unit 27 controlled by the oscillator 29, Δtmd2, is a second drive control calculation controlled by the second clock oscillator 30 mounted on the second drive control unit 20. This is a calculation cycle of the unit 26 and the second communication control unit 28.

  Δtsnd is the time required for transmission packet data to be transmitted from the operation management unit 18 to the first and second drive control units 19 and 20, and Δtrcv is the first or second drive control unit 19 , 20 is the time required from transmission start to completion of transmission of reply packet data to the operation management unit 18. Note that Δtmd1 and Δtmd2 are equal, and Δtsnd + Δtrcv <Δtcc.

[Transmission / reception operation 1]
At the start of communication, the first and second drive control units 19 and 20 are in a transmission prohibited / reception permitted state, and the operation management unit 18 is in a transmission prohibited / reception prohibited state (S100).

  First, at time t1, the communication control unit 23 of the operation management unit 18 outputs a transmission permission command from the transmission / reception control unit 23c to the communication I / F 23b, and the communication I / F 23b transmits the transmission packet data 201 on the memory 23a. Is transmitted through the serial transmission line 21.

  In the first and second communication control units 27 and 28 of the first and second drive control units 19 and 20, transmission packet data 201 from which the first and second communication I / Fs 27 b and 28 b are transmitted from the operation management unit 18. (S100) and buffered in the first and second memories 27a and 28a.

  At times t11 and t12, the first and second transmission / reception control units 27c and 28c confirm the reception of the packet head code 211 of the transmission packet data 201 buffered in the first and second memories 27a and 28a (S101). The reception of the packet end code 217 is monitored at the calculation cycles Δtmd1 and Δtmd2 (S102).

  At time t2, the communication control unit 23 of the operation management unit 18 outputs a transmission prohibition / reception permission command from the transmission / reception control unit 23c to the communication I / F 23b when the transmission of the transmission packet data 201 is completed, and shifts to a reception state. To do.

  At time t31, in the first communication control unit 27 of the first drive control unit 19, the first transmission / reception control unit 27c detects the packet end code 217 from the transmission packet data 201 buffered in the first memory 27a (S102).

  In the first abnormality detection circuit 27d, a communication error is detected during reception, and the integrity of the transmission packet data is checked from the error correction information 216 of the transmission packet data 201 (S103). If a communication abnormality is detected, The broadcast communication information 214 and the individual communication information 215 of the received transmission packet data 201 are discarded (S141, S142), and a communication abnormality signal is output to the first safety circuit 25d of the first drive control calculation unit 25 ( S143). The first safety circuit 25d urgently stops the elevator apparatus 1 when it is determined that there is a serious failure based on the content and frequency of the communication abnormality signal.

  When there is no communication abnormality, the first transmission / reception control unit 27c confirms the transmission packet code 212 of the transmission packet data 201 (S104), and confirms that the transmission destination ID 213 matches the first drive unit ID 27e (S105). In the first drive control calculation unit 25, the first hoisting machine speed command 214a of the broadcast communication information 214, the sequence control command 215a of the individual communication information 215, and the safety circuit operation command 215b are input (S106, S107). Then, a reception prohibition / transmission permission command is output to the first communication I / F 27b (S108, S109), and the reply packet data 301 on the first memory 27a is transmitted through the serial communication line 21.

  In the second communication control unit 28 of the second drive control unit 20, the second communication I / F 28b receives the reply packet data 301 transmitted from the first drive control unit 19 (S100), and the buffer is stored in the second memory 28a. To do.

  In the communication control unit 23 of the operation management unit 18, the communication I / F 23b receives the reply packet data 301 transmitted from the first drive control unit 19 and buffers it in the memory 23a.

  At time t32, in the second communication control unit 28 of the second drive control unit 20, the second transmission / reception control unit 28c detects the packet end code 217 from the transmission packet data 201 buffered in the second memory 28a (S102).

  The second abnormality detection circuit 28d detects a communication error during reception, and checks the consistency of the transmission packet data contents from the error correction information 216 of the transmission packet data 201 (S103). If a communication abnormality is detected, a reception is performed. The broadcast communication information 214 and the individual communication information 215 of the transmitted packet data 201 are discarded (S141, S142), and a communication abnormality signal is output to the second safety circuit 26d of the second drive control calculation unit 26 (S143). ). The second safety circuit 26d urgently stops the elevator apparatus 1 when it is determined that there is a serious failure based on the content and frequency of the communication abnormality signal.

  When there is no communication abnormality, the second transmission / reception control unit 28c confirms the transmission packet code 212 of the transmission packet data 201 (S104), and confirms that the transmission destination ID 213 does not match the second drive unit ID 28e (S105). In the second drive control calculation unit 26, the second hoisting machine speed command 214b of the broadcast communication information 214 is input (S121), and the contents of the individual communication information 215 are discarded (S122). In the second communication I / F 28b, the reception state is continued.

  At time t4, in the first communication control unit 27 of the first drive control unit 19, when transmission of the reply packet data 301 is completed (S110), transmission from the first transmission / reception control unit 27c to the first communication I / F 27b is prohibited. A reception permission command is output (S111, S112), and a transition is made to a reception state (S200).

  In the second communication control unit 28 of the second drive control unit 20, the second transmission / reception control unit 28c detects the packet end code 316 from the reply packet data 301 buffered in the second memory 28a (S102).

  If there is no communication abnormality, the second transmission / reception control unit 28c confirms the reply packet code 312 of the reply packet data 301 (S104), discards the individual communication information 314 of the received reply packet data 301 (S131), and sets the reception state. Continue (S200).

[Transmission / reception operation 2]
First, at time t5, the communication control unit 23 of the operation management unit 18 outputs a transmission permission command from the transmission / reception control unit 23c to the communication I / F 23b, and the communication I / F 23b transmits the transmission packet data 201 on the memory 23a. Is transmitted through the serial transmission line 21.

  In addition, the abnormality detection circuit 23d performs communication error detection during reception and checks the consistency of the reply packet data contents from the error correction information 315 of the reply packet data 301 buffered in the memory 23a, and detects a communication abnormality. In this case, the individual communication information 314 of the received reply packet data 301 is discarded, and a communication abnormality signal is output to the safety circuit 22e of the operation management calculation unit 22. In the safety circuit 22e, when it is determined that there is a serious failure based on the content and number of times of the communication abnormality signal, the elevator apparatus 1 is stopped urgently.

  When there is no communication abnormality, the transmission / reception control unit 23c confirms the reply packet code 312 of the reply packet data 301, and confirms that it matches the transmission source ID 313 and the first unit ID 52e1 of the drive unit ID list 23e. In the calculation unit 22, the hoisting machine control information 314 a of the individual communication information 314 and various abnormal signals 314 b are input as control information of the first drive control unit 19.

  In the first and second communication control units 27 and 28 of the first and second drive control units 19 and 20, transmission packet data 202 from which the first and second communication I / Fs 27 b and 28 b are transmitted from the operation management unit 18. (S100) and buffered in the first and second memories 27a and 28a.

  At times t51 and t52, the first and second transmission / reception control units 27c and 28c confirm the reception of the packet head code 211 of the transmission packet data 202 buffered in the first and second memories 27a and 3a (S101). The reception of the packet end code 217 is monitored at the calculation cycles Δtmd1 and Δtmd2 (S102).

  At time t6, when the transmission control unit 23 of the operation management unit 18 finishes transmitting the transmission packet data 202, the transmission / reception control unit 23c outputs a transmission prohibition / reception permission command to the communication I / F 23b and shifts to the reception state. To do.

  At time t71, in the first communication control unit 27 of the first drive control unit 19, the first transmission / reception control unit 27c detects the packet end code 217 from the transmission packet data 202 buffered in the first memory 27a (S102).

  When there is no communication abnormality (S103), the first transmission / reception control unit 27c confirms the transmission packet code 212 of the transmission packet data 202 (S104), and confirms that the transmission destination ID 213 does not match the first drive unit ID 27e ( S105), the first drive control computing unit 25 inputs the first hoisting machine speed command 214a of the broadcast communication information 214 (S121), and the contents of the individual communication information 215 are discarded (S122). In the first communication I / F 27b, the reception state is continued.

  At time t72, in the second communication control unit 28 of the second drive control unit 20, the second transmission / reception control unit 28c detects the packet end code 217 from the transmission packet data 212 buffered in the second memory 28a (S102).

  When there is no communication abnormality (S103), the second transmission / reception control unit 28c confirms the transmission packet code 212 of the transmission packet data 202 (S104), and confirms that the transmission destination ID 213 matches the second drive unit ID 28e. (S105) In the second drive control calculation unit 26, the second hoisting machine speed command 214b of the broadcast communication information 214, the sequence control command 215a of the individual communication information 215, and the safety circuit operation command 215b are input (S106, S107). . Then, a reception prohibition / transmission permission command is output to the second communication I / F 28b (S108, S109), and the reply packet data 302 on the second memory 28a is transmitted through the serial communication line 21.

  In the first communication control unit 27 of the first drive control unit 19, the first communication I / F 27b receives the reply packet data 302 transmitted from the second drive control unit 20 (S100), and the buffer is stored in the first memory 27a. To do.

  In the communication control unit 23 of the operation management unit 18, the communication I / F 23b receives the reply packet data 302 transmitted from the first drive control unit 19, and buffers it in the memory 23a.

  At time t8, when the transmission of the reply packet data 302 is completed in the second communication control unit 28 of the second drive control unit 20 (S110), transmission from the second transmission / reception control unit 28c to the second communication I / F 28b is prohibited. A reception permission command is output (S111, S112), and a transition is made to a reception state (S200).

  In the first communication control unit 27 of the first drive control unit 19, the first transmission / reception control unit 27c detects the packet end code 316 from the reply packet data 302 buffered in the first memory 27a (S102).

  When there is no communication abnormality (S103), the first transmission / reception control unit 27c confirms the reply packet code 312 of the reply packet data 302 (S104), and discards the individual communication information 314 of the received reply packet data 302 (S131). The reception state is continued (S200).

  At time t9, the communication control unit 23 of the operation management unit 18 outputs a transmission permission command from the transmission / reception control unit 23c to the communication I / F 23b, and the communication I / F 23b serially transmits the transmission packet data 203 on the memory 23a. Transmit through line 21.

  When there is no communication abnormality, the transmission / reception control unit 23c confirms the reply packet code 312 of the reply packet data 302 and confirms that the transmission source ID 313 matches the second drive control unit ID 23e2 of the drive unit ID list 23e. In the operation management calculation unit 22, the hoisting machine control information 314 a and the various abnormality signals 314 b of the individual communication information 314 are input as control information of the second drive control unit 20.

  In the first and second communication control units 27 and 28 of the first and second drive control units 19 and 20, the transmission packet data 203 from which the first and second communication I / Fs 27 b and 28 b are transmitted from the operation management unit 18. (S100) and buffered in the first and second memories 27a and 28a. Thereafter, this operation is repeated.

  As described above in detail, according to the elevator apparatus according to Embodiment 1 of the present invention, the operation management unit 18 performs transmission and reception at a constant communication cycle, and the first and second drive control units 19 and 20 operate. By monitoring the reception state of communication with a calculation cycle shorter than the communication cycle of the management unit 18 and controlling the return timing based on the communication information transmitted from the operation management unit 18, the first and second volumes In the elevator apparatus that drives the machines 8 and 12 to raise and lower one car 2, the operation management unit 18 that is separately and independently arranged on the serial transmission line 21 and that operates asynchronously, and the first and second Control commands and status information can be exchanged between the drive control units 19 and 20 at a constant cycle.

  The elevator apparatus according to the present invention can be used for an elevator apparatus of a type that drives a plurality of hoisting machines to raise and lower one car.

1 is a configuration diagram of an elevator apparatus according to Embodiment 1 of the present invention. It is an internal block diagram of the control apparatus of the elevator apparatus which concerns on Embodiment 1 of this invention. It is a block diagram of the communication packet used for the elevator apparatus which concerns on Embodiment 1 of this invention. It is a time chart which shows operation | movement of the control apparatus of the elevator apparatus which concerns on Embodiment 1 of this invention. It is an operation | movement flowchart of the control apparatus of the elevator apparatus which concerns on Embodiment 1 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator apparatus 2 Car 3 Drive apparatus 4 Control apparatus 5 1st electric motor 6 1st brake 7 1st sheave 8 1st hoisting machine 9 2nd electric motor 10 2nd brake 11 2nd sheave 12 2nd hoisting machine 13 1st rope 14 1st deflector 15 Balance weight 16 2nd rope 17 2nd deflector 18 Operation management unit 19 1st drive control unit 20 2nd drive control unit 21 Serial communication line 22 Operation management operation part 22a Elevator management part 22b Cooperative drive control unit 22c Speed control command unit 22d Sequence control command unit 22e Safety circuit 23 Communication control unit 23a Memory 23b Communication I / F
23c Transmission / Reception Control Unit 23d Abnormality Detection Circuit 23e Drive Unit ID List 23e1 First Unit ID
23e2 second unit ID 24 clock oscillator 25 first drive control calculation unit 25a first control information detection unit 25b first hoisting machine control unit 25c first sequence control unit 25d first safety circuit 25e first abnormal signal detection unit 26 2nd drive control calculating part 26a 2nd control information detection part 26b 2nd winding machine control part 26c 2nd sequence control part 26d 2nd safety circuit 26e 2nd each abnormal signal detection part 27 1st communication control part 27a 1st memory 27b 1st communication I / F 27c 1st transmission / reception control part 27d 1st abnormality detection circuit 27e 1st drive unit ID
28 second communication control unit 28a second memory 28b second communication I / F 28c second transmission / reception control unit 28d second abnormality detection circuit 28e second drive unit ID
29 First clock oscillator 30 Second clock oscillator 200 Transmission packet 211 Packet head code 212 Transmission packet code 213 Destination ID
214 Broadcast communication information 214a First hoist machine speed command 214b Second hoist machine speed command 215 Individual communication information 215a Sequence control command 215b Safety circuit operation command 216 Error correction information 217 Packet end code 300 Reply packet 311 Packet head code 312 Reply packet code 313 Source ID
314 Individual communication information 314a Hoisting machine control information 314b Various abnormal signals 315 Error correction information 316 Packet end code

Claims (3)

In an elevator apparatus that drives one car based on the first and second hoisting machines,
First and second drive control units arranged separately and independently to drive and control the first and second hoisting machines;
An operation management unit that is arranged separately and independently from the first and second drive control units, and that outputs a control command to the first and second drive control units,
A serial communication line connecting the operation management unit and the first and second drive control units,
The operation management unit transmits and receives information at a fixed communication cycle, and the first and second drive control units transmit and receive information based on the information transmitted from the operation management unit. The elevator apparatus characterized by this.   2. The elevator apparatus according to claim 1, wherein the first and second drive control units calculate at a cycle earlier than a communication cycle of the operation management unit. In the first communication cycle, the operation management unit broadcasts common information for the first and second drive control units and individual information for the first drive control unit to the serial communication line, and 1 When the drive control unit receives information for its own unit, it returns information for the operation management unit,
In the second communication cycle, the operation management unit broadcasts common information for the first and second drive control units and individual information for the second drive control unit to the serial communication line, and The elevator apparatus according to claim 1 or 2, wherein the two-drive control unit returns information for the operation management unit when receiving information for the unit itself.

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