JP4643245B2 - Inverter device - Google Patents

Description

The present invention relates to an inverter device including a wireless communication device that transmits information to an external wireless communication device by radio waves.

One example of the wireless communication device is an IC tag. The IC tag are those management information of the product corresponding to the recorded tag, management information recorded in the IC tag wirelessly have groups Dzu to oscillate a radio wave for communication from the R / W device to the IC tag Detectable.
JP 2003-087263 A

In the above configuration, since the communication radio waves oscillated from the R / W device is irradiated as a noise to the electronic device when using wearing the IC tag to the electronic device, a possibility that the electronic device may malfunction under the influence of the noise is there.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an inverter device including a wireless communication device that can prevent an electronic device from malfunctioning due to the influence of radio waves for communication.

An inverter device according to claim 1 is an inverter device including a wireless communication device. The wireless communication apparatus includes an antenna capable of receiving radio waves, a signal output unit that outputs a power signal based on a reception state of the antenna, a power generation unit that generates power based on a radio signal received by the antenna, an external a radio wave information recording means for the radio wave information is recorded based on received radio wave signal transmitted from the wireless communication device through an antenna, radio wave information for transmitting the recorded results of the radio wave information recording unit via the antenna to the external wireless communication device Transmitting means. The inverter device according to claim 1 includes operation control means for controlling the operation content of the load based on the radio wave information based on the power signal .
The invention according to claim 1 acquires the radio wave information have groups Dzu the radio wave antenna of the radio communication device receives, transmits an acquisition result of the radio wave information to the outside. This is a radio wave information including both indirect information generated have groups Dzu the detection result of the direct information and power signal indicating the detection result itself of the power signal.
The invention according to claim 1 transmits the radio wave information recording result to an external wireless communication device through an antenna. The transmission process of the radio wave information is intended to be performed have groups Dzu to receive a radio signal transmitted from the wireless communication device through an antenna, a recording result of the radio wave information to transmitting radio signals from the wireless communication device It is to be read in have group Dzu.
The wireless communication device only needs to be electrically connected to the inverter device wirelessly or by wire, and may be mechanically attached or not mechanically attached.
The invention according to claim 1, in which the inverter device controls the operation content of the load have groups Dzu the radio wave information.
The invention according to claim 2 in which the inverter device is cut off power supply to the load have groups Dzu the radio wave information.
The invention according to claim 3 are those inverter device outputs the output signal have groups Dzu the radio wave information to the outside, an alarm signal for the output signal for actuating an alarm device such as display, sound devices, illuminations unit (Alarm signal) included.

R / W from the external device of the apparatus such as when the antenna to the radio communication of the radio communication device is oscillated is output based Dzu rather power signal to the reception state of the antenna, radio wave information had groups Dzu power signal is recorded. Therefore, to identify the occurrence of noise have groups Dzu the recording result of the radio wave information, it is possible to take measures in accordance with the identification result of the occurrence, the inverter device for communication radio wave is irradiated to the influence of noise It is possible to prevent malfunction.

The inverter device 1 in FIG. 1 controls driving of a motor and corresponds to an electronic device. An IC tag 2 corresponding to a wireless communication device and a power detection device is fixed to the inverter device 1. The IC tag 2 are those driving power and management information from the inverter device 1 is transmitted by wire, stores the reception result of the management information have groups Dzu to receiving management information in its own non-volatile memory. This management information refers to internal information held by the inverter device 1 and includes operation information and trip information of the inverter device 1.

R / W unit 3 is equivalent to a external wireless communication device, also driven power IC tag 2 that IC tag 2 is self-generated by have groups Dzu to the communication radio waves oscillated from the R / W device 3 Is possible. That is, the management information stored in the nonvolatile memory of the IC tag 2 is to be obtained from outside any power valid state and the power disabling state of the inverter device 1 have groups Dzu to using the R / W device 3 Yes.

The IC tag 2 has a protection function for the inverter device 1. This protection function detects noise coming from a TV, camera, mobile phone, etc., noise coming from a peripheral inverter device, noise coming from its own power cord, etc. the a function of transmitting a wired, the inverter device 1 take themselves noise suppression measures have groups Dzu to detecting the noise information from the IC tag 2. This noise information is transmitted from the IC tag 2 to the inverter device 1 even when the management information of the IC tag 2 is read by the R / W device 3, and the R / W device 3 is operated during the operation of the inverter device 1. when using the inverter device 1 take similar measures have groups Dzu to detecting the noise information from the IC tag 2. Hereinafter, the detailed configuration of the inverter devices 1 to R / W device 3 will be described.
1. Description of Inverter Device 1 In the inverter case 11, a main circuit 12 is accommodated as shown in FIG. The main circuit 12 includes a main power supply circuit 13, an inverter main circuit 14, an inverter control circuit 15, a drive circuit 16, a current sensor 17, a current detection circuit 18, and a voltage detection circuit 19. The main power supply circuit 13 is a main power supply circuit. the by have groups Dzu to rectifying and smoothing generates a DC power source. The main power supply circuit 13 is connected to a three-phase AC power supply 21 via an electromagnetic contactor 20, and the three-phase AC power supply 21 is supplied to the main power supply circuit 13 as a main power supply through the electromagnetic contactor 20.

Inverter main circuit 14 has been constructed from connecting six three-phase bridge switching elements, to generate a driving power source of three-phase have groups Dzu to switch the DC power main power supply circuit 13 generates . This is the inverter main circuit 14 is connected a motor 22 which corresponds to the load, the motor 22 is driven have groups Dzu that driving power from the inverter main circuit 14 3-phase is applied.

The inverter control circuit 15 is mainly composed of a microcomputer, and has a CPU 23, ROM 24, RAM 25, and EEPROM 26. This is the ROM24 of the inverter control circuit 15 control program is recorded, CPU 23 of the inverter control circuit 15 executes the processing operation described later and have groups Dzu the control program. The inverter control circuit 15 corresponds to operation control means, power supply cutoff means, external signal output means, trip means, and alarm means.

  The operation panel 27 is fixed to the inverter case 11. A frequency key 28, a RUN key 29, and a STOP key 30 are attached to the operation panel 27. When the frequency key 28 is operated, a frequency command corresponding to the operation content of the frequency key 28 is sent from the operation panel 27 to the inverter control circuit 15. An operation command and a stop command are transmitted from the operation panel 27 to the inverter control circuit 15 when the RUN key 29 is operated and when the STOP key 30 is operated.

The opening / closing circuit 31 is housed in the inverter case 11. This switching circuit 31 is connected to the R phase and S phase of the AC power supply 21 on the input side of the magnetic contactor 20, and the CPU 23 of the inverter control circuit 15 detects the operation command from the operation panel 27. Dzu have outputs a power-on signal to close circuit 31, closing the circuit 31 excites the excitation coil of the electromagnetic contactor 20 have groups Dzu that power-on signal is applied. The electromagnetic contactor. 20 is intended to close the feed line of the mains at the excitation state of the exciting coil, CPU 23 is closed the feed path of the main power source have groups Dzu the operation command from the operation panel 27 of the inverter control circuit 15 There group Dzu the frequency command from the operation panel 27 when the form to generate a drive signal, the drive circuit 16 is frequency command the motor 22 to have groups Dzu to switch the inverter main circuit 14 have groups Dzu the result of generating the drive signal Drive at a speed according to. That is, the main power supply is turned on in conjunction with the operation of the RAN key 29, and the RUN key 29 corresponds to an operation means for instructing the motor 22 to start operation.

CPU23 inverter control circuit 15 generates a gate block signal and power-off signal to have groups Dzu to detecting a stop command from the operation panel 27, the gate block signal generation results and power-off signal drive circuit to generate a result of the 16 And output to the open / close circuit 31. Gate block signal is equivalent to a shutdown signal from the inverter main circuit 14, turns off the switching elements of the inverter main circuit 14 have groups Dzu that drive circuit 16 is given a gate block signal, the driving power of the motor 22 Shut off. Power-off signal is equivalent to a trip signal, the opening and closing circuit 31 In its group Dzu to power-off signal is applied to Shoyoridokoro the exciting coil of the electromagnetic contactor 20, the electromagnetic contactor 20 of the anti-bases of the excitation coil In the state, open the main power supply path. That is, the main power supply is shut off in conjunction with the operation of the STOP key 30, and the STOP key 30 corresponds to an operation means for instructing to stop the operation of the motor 22.

The current sensor 17 detects current on the output side of the main power supply circuit 13, and the current detection circuit 18 outputs a current signal having a voltage level corresponding to the detection result of the current sensor 17 to the inverter control circuit 15. The voltage detection circuit 19 outputs a voltage signal having a voltage level corresponding to the voltage value on the output side of the main power supply circuit 13 to the inverter control circuit 15, and the CPU 23 of the inverter control circuit 15 performs the following 1) to 4). as shown, to determine the presence or absence of internal trip cause have groups Dzu the input result of the input result and the voltage signal of the current signal. Then, upon detection of the occurrence of the trip cause outputs a gate block signal and power-off signal to the drive circuit 16 and the opening and closing circuit 31, the inverter main circuit 14 and the electromagnetic contactor 20 free the motor 22 have groups Dzu to off Stop from the run state.
Since 1) current signal when the motor 22 is constrained to rise abnormally, trip cause "overcurrent" is determined have groups Dzu the raised position of the current signal.
2) Since when the arm short of switching elements is generated by an inverter main circuit 14 a current signal is abnormal rises in a different manner and the occurrence of overcurrent, trip cause "arm short" to have group Dzu the raised position of the current signal is determined Is done.
3) Since the voltage signal when the inertia moment of the motor 22 is extremely large increases abnormally, trip cause "motor overload" to have group Dzu the raised position of the voltage signal is determined.
4) Since when the deceleration time of the motor 22 is extremely short voltage signal to abnormal rise in a different manner and the occurrence of motor overload, trip cause "overvoltage" is determined have groups Dzu the raised position of the voltage signal.

The operation panel 27 is provided with a display device 32 corresponding to an alarm device. When a trip occurs, a determination result of the cause of the trip is displayed on the display device 32 with a combination code of alphabets and numerals. This operation panel 27 is mounted a buzzer 33 corresponding to the alarm, trip occurs the tripping and have groups Dzu that the buzzer 33 is sounded is informed.

  A control power supply circuit 34 is accommodated in the inverter case 11, and the control power supply circuit 34 is connected to the R phase and S phase of the AC power supply 21 on the input side of the electromagnetic contactor 20. The control power supply circuit 34 generates a control power supply for the inverter control circuit 15, a panel power supply for the operation panel 27, and a tag power supply for the IC tag 2, and the inverter control circuit 15, the operation panel 27, and the IC tag 2 The power is applied through a path different from that of the inverter main circuit 14. That is, the inverter control circuit 15 and the IC tag 2 execute the control program even when the inverter device 1 is tripped, and the display 32 and the buzzer 33 continue the alarm operation even during the trip.

A circuit breaker 35 for wiring is interposed between the magnetic contactor 20 and the AC power source 21. The circuit breaker 35 has been accommodated in the inverter case 11, have group Dzu to detect the overload current and short-circuit current by opening the feed line, disabling the main power.

FIG. 3 is a flowchart showing a control program recorded in the ROM 24 of the inverter control circuit 15. Hereinafter, we have group Dzu the flowchart of FIG. 3 explains a procedure of the inverter control circuit 15. The CPU 23 of the inverter control circuit 15 determines the presence or absence of noise information in step S1 of FIG. The noise information is intended to be transmitted have groups Dzu that IC tag 2 detects the occurrence of noise, CPU 23 is shifted to step S2 when it is detected that the noise information is present in step S1, to turn on the noise flag . This noise flag is initially set to an off state when the control program is started. When the CPU 23 turns on the noise flag in step S2, the process proceeds to step S5.

When the CPU 23 detects that there is no noise information in step S1, the CPU 23 determines whether or not there is noise elimination information in step S3. The noise cancellation information is intended to be transmitted have groups Dzu that IC tag 2 is detected the disappearance of the noise, CPU 23 is in when it is detected that the noise cancellation information is present in step S3 proceeds to step S4. Here, the noise flag is turned off, and the process proceeds to step S5. In other words, the noise flag records the presence or absence of noise, and is turned on when noise is emitted from a peripheral device such as a digital camera or when communication radio waves are oscillated from the R / W device 3 to the IC tag 2. The

When proceeding to step S5, the CPU 23 determines whether or not there is an operation command. The operation command is intended to be transmitted from the operation panel 27 have groups Dzu the operation of the RUN key 29, CPU 23 is in when it detects the operation command at step S5 proceeds to a step S6, it is determined the setting state of the noise flag.

CPU23 when it detects that it is the noise flag is turned on at step S6, a warning display have groups Dzu to output a display signal to the display unit 32 in step S7. That is, when the user operates the RUN key 29 in a state in which noise is emitted from a peripheral device such as a digital camera or in a state in which a communication radio wave is oscillated from the R / W device 3 to the IC tag 2, the motor 22 is operated. The operation of the RUN key 29 is invalidated without starting. Then, a warning is displayed on the display 32 to notify the user that the motor 22 cannot be started due to the influence of noise.

CPU23 when it detects that the noise flag in step S6 is turned off, and have groups Dzu to output a power-on signal to close circuit 31 in step S8 after the main power is turned on to start the operation of the motor 22. That is, the motor 22 is started on the condition that there is no noise.

When starting the operation of the motor 22 in step S8, the CPU 23 detects the storage result of the operation number N from the EEPROM 26 in step S9. This operation number N corresponds to an operation history in which the operation number of the motor 22 is cumulatively added. When the CPU 23 detects the storage result of the operation number N in step S9, the detection result of the operation number N is “1”. the by have groups Dzu in adding to update the operating frequency N, the process proceeds to step S10.

  A plurality of information storage areas are set in the EEPROM 26 of the inverter control circuit 15 as shown in FIG. The number N of operations is assigned to each of these information storage areas. When the CPU 23 of the inverter control circuit 15 proceeds to step S10 in FIG. 3, the current date and time is set in the information storage area according to the update result of the number of operations N. Is recorded as the operation start date and time, and the process proceeds to step S11. For example, when the update result of the operation count N is “2”, the current date and time is recorded as the operation start date and time in the information storage area “2”.

  When proceeding to step S11, the CPU 23 detects the storage result of the operation time T from the EEPROM 26, and proceeds to step S12. The operation time T refers to an addition result obtained by cumulatively adding the operation time of the motor 22, and is detected from the information storage area corresponding to the number of operations “N−1” among the plurality of information storage areas. That is, in step S11, the cumulative operation time until the previous operation is detected.

When the CPU 23 proceeds to step S12, the operation time measurement operation is started from the detection result of the operation time T as a starting point. Then, the process proceeds to step S13, and it is determined whether or not there is a stop command from the operation panel 27. Here the process proceeds to step S14 when detecting the stop command, and have groups Dzu to output a gate block signal to the drive circuit 16 stops the inverter main circuit 14. Then, outputs the power supply interrupting signal to close circuit 31 in step S15, to cut off the main power supply have groups Dzu to trip the electromagnetic contactor 20.

  When the CPU 23 outputs a power cut-off signal in step S15, the process proceeds to step S16. Here, the normal stop is recorded in the information storage area according to the update result of the operation number N, and the current date and time is recorded as the operation stop date and time of the motor 22 in the information storage area according to the update result of the operation number N in step S17. In step S18, the measurement operation of the operation time T is stopped. In step S19, the measurement result of the operation time T is recorded in the information storage area corresponding to the update result of the operation frequency N, and the operation state is recorded in the information storage area corresponding to the update result of the operation frequency N in step S20. This operation state refers to the rotation direction, frequency command value, operation frequency value, detection value of current signal, detection value of voltage signal, and detection value of voltage signal immediately before operation stop. When the CPU 23 records the operation state in the EEPROM 26, Control goes to step S21.

When proceeding to step 21, the CPU 23 detects the record data from the information storage area corresponding to the update result of the operation number N, and transmits the update result of the operation number N and the detection result of the record data to the IC tag 2 as operation information. Namely, the normal stop data operation start time and operation stop time-cumulative operation time as the driving information from the inverter device 1 to the IC tag 2-cumulative when the inverter device 1 is normally stopped have groups Dzu to the operation of STOP key 30 The number of normal operations, rotation direction during normal stop, frequency command value during normal stop, operation frequency value during normal stop, current value during normal stop, and voltage value during normal stop are transmitted.

CPU23 when it detects that there is no stop command in step S13, it is determined whether the occurrence of internal trip cause have groups Dzu the input result of the input result and the voltage detection signal of the current detection signal in step S22. The cause of the trip is represented by overcurrent, arm short circuit, motor overload, and overvoltage. When the CPU 23 detects that an internal trip cause has occurred in step S22, the process proceeds to step S24.

  When detecting that there is no internal trip cause in step S22, the CPU 23 determines whether or not there is an external trip cause in step S23. This external cause of trip refers to noise information transmitted from the IC tag 2, and when the CPU 23 detects noise information from the IC tag 2 in step S23, the process proceeds to step S24. The noise information corresponds to radio wave information.

CPU23 is the process proceeds to step S24, to turn off the inverter main circuit 14 have groups Dzu to output a gate block signal to the drive circuit 16. Then, the process proceeds to step S25, to trip the electromagnetic contactor 20 have groups Dzu to output a power-off signal to open and close circuit 31.

When the CPU 23 outputs the power cutoff signal in step S25, the CPU 23 outputs a display signal corresponding to the alarm signal to the display 32 in step S26. The display signal is used to generate have groups Dzu on the detection result of the trip cause CPU 23, the display unit 32 detection result of the trip cause have groups Dzu the display signal is displayed by a combination code of the alphabet and numbers.

When the CPU 23 displays the detection result of the trip cause in step S26, the CPU 23 outputs a ringing signal corresponding to the alarm signal to the buzzer 33 in step S27. This ringing signal is used to sound the buzzer 33, the user trip occurs have groups Dzu that the buzzer 33 is sounded is informed by sound.

  When the CPU 23 sounds the buzzer 33 in step S27, the CPU 23 records an abnormal stop in the information storage area corresponding to the update result of the number of operations N in step S28. In step S29, the detection result of the trip cause is recorded in the information storage area corresponding to the update result of the number of operations N, and the process proceeds to step S30. For example, when an overcurrent is determined in step S22, the overcurrent is recorded as a cause of trip, and when noise information from the IC tag 2 is detected in step S23, noise is recorded as a cause of trip.

  When proceeding to step S30, the CPU 23 records the current date and time as the operation stop date and time of the motor 22 in the information storage area corresponding to the update result of the number of operations N, and stops the measurement operation of the operation time T in step S31. In step S32, the measurement result of the operation time T is recorded in the information storage area corresponding to the update result of the operation frequency N, and the operation state is recorded in the information storage area corresponding to the update result of the operation frequency N in step S33. This operation state refers to the rotation direction, frequency command value, operation frequency value, current signal detection value, voltage signal detection value of the motor 22 immediately before the trip, and when the CPU 23 records the operation state in the EEPROM 26, the step is executed. The process proceeds to S34.

  When proceeding to step S34, the CPU 23 detects the record data from the information storage area corresponding to the update result of the operation number N, and transmits the update result of the operation number N and the detection result of the record data to the IC tag 2 as trip information. That is, when the inverter device 1 trips (abnormal stop), the inverter device 1 sends the IC tag 2 trip information as abnormal stop data, trip cause, operation start date / time, operation stop date / time, cumulative operation time, cumulative operation count.・ Rotation direction at trip ・ Frequency command value at trip ・ Operating frequency value at trip ・ Current value at trip ・ Voltage value at trip

When the CPU 23 transmits the trip information to the IC tag 2 in step S34, the CPU 23 detects the cause of the trip from the information storage area corresponding to the update result of the operation number N in step S35, and compares the detection result of the trip cause with noise. Here, when it is detected that the detection result of the trip cause is internal other than noise, the process returns to step S1, the presence / absence of noise information from the IC tag 2 and the presence / absence of noise elimination information are determined, and the operation panel 27 is checked. Wait for the operation command from. That is, when the inverter device 1 trips due to internal causes such as overcurrent, arm short circuit, motor overload, overvoltage, etc., the user identifies the cause of the trip from the display contents of the display 32, and after removing the cause of the trip, the operation panel There group Dzu to operate the RUN key 29 of 27 operated is resumed.

When the CPU 23 detects that the cause of the trip is noise in step S35, the CPU 23 determines whether or not there is noise elimination information in step S36. The noise cancellation information is intended to be transmitted have groups Dzu that IC tag 2 to determine the absence of noise, CPU 23 is in when it detects a noise cancellation information at step S36 the process proceeds to step S37.

CPU23 is the process proceeds to step S37, the main power was turned on to have groups Dzu to output a power-on signal to close circuit 31 resumes the operation of the motor 22. That is, noise noise cancellation information is transmitted from the IC tag 2 to the inverter device 1 when the has been eliminated, the inverter device 1 is automatically resume operation with have groups Dzu to receive noise cancellation information.
2. Description of R / W Device 3 The R / W device 3 wirelessly transmits a data request signal to the IC tag 2 by radio waves. As shown in FIG. 5, an antenna 41, an information conversion circuit 42, an oscillation circuit 43, and an R / W control circuit 44 is provided. The R / W device 3 includes a battery 45 and is driven using the battery 45 as a power source.

The oscillation circuit 43 oscillates a carrier wave having a constant frequency and a constant amplitude, and the information conversion circuit 42 oscillates a carrier wave oscillated from the oscillation circuit 43 from the antenna 41. The information converting circuit 42 is intended to modulate the carrier wave had radicals Dzu the modulated signal outputted from the R / W control circuit 44 oscillates a modulation result of the carrier wave as a data request signal from the antenna 41. The information converting circuit 42 is intended to demodulate have groups Dzu to waveform shaping the current flowing in the antenna 41, the received content of the R / W control circuit 44 In its group Dzu the demodulation results of the data conversion circuit 42 Antenna 41 recognize. The R / W control circuit 44 has a CPU, a ROM, and a RAM, and transmits a reception result recognition result to an external management device such as a personal computer.
3. Description IC tag 2 of the IC tag 2 stores the storage result, noise cancellation information storing results noise information storage result trip information group Dzu have been driving information to receiving the data request signal from the R / W device 3 detecting the result, which wirelessly transmits to the R / W device 3, the operation information-noise cancellation information have groups Dzu the demodulation results of the R / W control circuit 44 of the R / W device 3 information converting circuit 42 It recognizes and transmits driving information-noise elimination information as a recognition result of the received content to the external management device. This IC tag 2 is fixed to the surface of the inverter case 11, and as shown in FIG. 6, an antenna 51, a power supply circuit 52, a voltage detection circuit 53, an information conversion circuit 54, a tag control circuit 55, and a transmission circuit 56 are provided. And an EEPROM 57. The IC tag 2 is connected by wire to the control power supply circuit 34, the valid state of the main power source of the inverter device 1 drives have groups Dzu tag power control power circuit 34 is produced.

The tag control circuit 55 corresponds to radio wave information transmission means, management information detection means, and management information transmission means. This tag control circuit 55 is connected to the inverter control circuit 15 via the transmission circuit 56 so that bidirectional communication is possible. The inverter control circuit 15 is connected to the tag control circuit 55 in steps S21 and S34 of FIG. The operation information detection result and trip information detection result are transmitted through the transmission circuit 56. The tag control circuit 55 are those having a CPU · ROM · RAM, CPU of the tag control circuit 55 executes the processing operations have groups Dzu a control program recorded in the ROM.

The antenna 51 receives communication radio waves oscillated from the antenna 41 of the R / W device 3 and peripheral radio waves other than the communication radio waves, and corresponds to radio wave receiving means. Power supply circuit 52 is equivalent to a rectifying means and the power generating means, for generating a DC power supply have groups Dzu the radio wave antenna 51 receives. The DC power supply is equivalent to a driving power source of the IC tag 2, IC tag 2 in the state in which the tag power from the control power supply circuit 34 has disappeared driven have groups Dzu to a DC power source the power supply circuit 52 generates.

The voltage detection circuit 53 corresponds to a signal output means, and outputs a voltage signal of a level corresponding to the DC power supply voltage generated by the power supply circuit 52 to the tag control circuit 55. The CPU of the tag control circuit 55 is a voltage detection circuit. There group Dzu the voltage signal from 53 executes the noise detection process. Information converting circuit 54 is intended to demodulate a radio wave antenna 51 receives the tag control circuit 55 In its group Dzu the demodulation result of the information converting circuit 54 identifies the data request signal from the R / W device 3, an antenna 51 the by have groups Dzu to drive responds to a data request signal.

The flowchart of FIG. 7 shows a control program stored in the ROM of the tag control circuit 55, CPU of the tag control circuit 55 in the enabled state of the main power supply have groups Dzu tag power from the control power supply circuit 34 7 running the control program, the power supply circuit 52 in a disabled state of the main power supply to execute a control program of Figure 7 to have groups Dzu tag power supply for generating and have groups Dzu to the communication radio wave from the R / W device 3.

  When the CPU of the tag control circuit 55 proceeds to step S51 in FIG. 7, it determines whether or not there is operation information from the inverter control circuit 15. If it is detected that there is driving information, the process proceeds to step S52.

  The EEPROM 57 of the tag control circuit 55 corresponds to management information recording means, and a plurality of information storage areas are set in the EEPROM 57 as shown in FIG. The number N of operations is assigned to each of these information storage areas. When the CPU of the tag control circuit 55 proceeds to step S52 in FIG. 7, the number of operations N is detected from the reception result of the operation information, and the number of operations N is detected. The reception result of the driving information is recorded in the information storage area corresponding to the result. For example, when the detection result of the operation number N is “2”, the operation information from the inverter control circuit 15 is recorded in the information storage area “2” of the EEPROM 57. That is, common operation information is stored in the EEPROM 26 of the inverter control circuit 15 and the EEPROM 57 of the IC tag 2.

  The CPU of the tag control circuit 55 detects the voltage signal from the voltage detection circuit 53 when the process proceeds to step S53 in FIG. And it transfers to step S54 and compares the detection result of a voltage signal with a noise determination value. This noise determination value is recorded in advance in the ROM of the tag control circuit 55. If the CPU of the tag control circuit 55 detects that the detection result of the voltage signal is larger than the noise determination value in step S54, the noise determination value is determined in step S55. Judge that there is. This noise determination value is a boundary value for identifying noise oscillated from peripheral devices such as a digital camera, a television, and a mobile phone, and communication radio waves are transmitted from the antenna 41 of the R / W device 3 to the antenna 51 of the IC tag 2. In the state where is oscillated, the detection result of the voltage signal exceeds the noise determination value, and it is determined that there is noise in step S55.

If the CPU of the tag control circuit 55 determines that there is noise in step S55, it determines the setting state of the information transmission flag in step S56. This information transmission flag are those showing a transmission state of the noise information, it is set to have groups Dzu to transmit noise information to the ON state at step S59 in step S58, the group to transmit the noise cancellation information at step S63 It is set to the oFF state at step S64 to have Dzu.

  When the CPU of the tag control circuit 55 detects that the information transmission flag is set in the OFF state in step S56, it records the noise generation and the noise generation date and time as noise information in the EEPROM 57 in step S57. That is, the EEPROM 57 corresponds to radio wave information recording means for recording radio wave information.

When the CPU of the tag control circuit 55 records the noise information in step S57, the transmitted noise information to the inverter control circuit 15 through the transmission circuit 56 at step S58, the noise information have groups Dzu to turn on the information transmission flag in step S59 Record that you sent. Then, the CPU 23 of the inverter control circuit 15 detects noise information in step S23 of FIG. 3, outputs a gate block signal and a power shut-off signal in steps S24 and S25, and issues an alarm in steps S26 and S27. In step S28 to step S33, trip information is recorded in the EEPROM 26. In step S34, the trip information acquisition result is transmitted to the IC tag 2.

  When the CPU of the tag control circuit 55 proceeds to step S65 in FIG. 7, the CPU determines whether or not there is trip information from the inverter control circuit 15. When trip information is detected, the number of operations N is detected from the trip information reception result in step S66, and the reception result of trip information is recorded in the information storage area corresponding to the detection result of the number of operations N. That is, common trip information is stored in the EEPROM 26 of the inverter control circuit 15 and the EEPROM 57 of the IC tag 2.

When the CPU of the tag control circuit 55 detects that the detection result of the voltage signal is equal to or less than the noise determination value in step S54, it determines that there is no noise in step S60. And it transfers to step S61 and the setting state of an information transmission flag is judged. This information transmission flag is intended to be set to the on state have groups Dzu to transmit the noise information, the tag control circuit 55 CPU's information transmission flag in step S61 when the noise is eliminated after the transmission of noise information Detect on.

  When the CPU of the tag control circuit 55 detects that the information transmission flag is turned on in step S61, it records noise elimination and noise elimination date and time as noise elimination information in the EEPROM 57 in step S62. That is, the noise generation history and the noise elimination history remain in the EEPROM 57 of the IC tag 2.

  When the noise elimination information is recorded in step S62, the CPU of the tag control circuit 55 transmits noise elimination information corresponding to the radio wave information to the inverter control circuit 15 in step S63, and resets the information transmission flag to an off state in step S64. Then, the CPU 23 of the inverter control circuit 15 detects the noise elimination information from the IC tag 2 in step S36 of FIG. 3, and resumes the operation of the motor 22 without operating the RUN key 29 in step S37.

When the CPU of the tag control circuit 55 proceeds to step S67 in FIG. 7, it determines whether or not there is a data request signal from the R / W device 3. When it is detected that there is a data request signal, the process proceeds to step S68, and the operation result storage result, trip information storage result, noise information storage result, and noise elimination information storage result are detected from the EEPROM 57. Then, the process proceeds to step S69, and transmits have groups Dzu to drive the antenna 51 the detection results of ~ noise cancellation information operation information to the R / W device 3.

According to the said Example 1, there exists the following effect.
When communication radio waves are oscillated from the R / W device 3 to the IC tag 2, noise information is transmitted from the IC tag 2 to the inverter device 1. When the inverter device 1 receives noise information during operation of the motor 22, the gate block is transmitted. A signal and a power shutoff signal are output. For this reason, since the inverter device 1 automatically stops when the R / W device 3 is used, it is possible to prevent malfunction due to the influence of the communication radio wave oscillated from the R / W device 3. In addition, when noise is emitted from a peripheral device such as a digital camera, noise information is transmitted from the IC tag 2 to the inverter device 1, and when the inverter device 1 receives noise information during operation of the motor 22, a gate block signal and a power source The shut-off signal is output. For this reason, since the inverter device 1 automatically stops due to noise from the peripheral device, it is possible to prevent malfunctioning due to the influence of noise emitted from the peripheral device.

  When the inverter device 1 receives noise information while the operation of the motor 22 is stopped, the RUN key 29 is set to an operation invalid state. For this reason, even if the RUN key 29 is operated in a state where the R / W device 3 is used and noise is emitted from the peripheral devices, the inverter device 1 does not start operation. It is possible to prevent malfunction due to the influence.

Operation to stop the motor 22 have groups Dzu that the inverter device 1 detects noise information from the IC tag 2, and operation resumed constituting the motor 22 have groups Dzu to detecting noise cancellation information from the IC tag 2 Therefore, the motor 22 automatically stops operation and resumes operation in conjunction with the start and end of use of the R / W device 3. For this reason, since the troublesomeness of the user operating the RUN key 29 and the STOP key 30 according to the start and end of use of the R / W device 3 is eliminated, convenience is improved.

Noise information and noise elimination information were recorded in the EEPROM 57 of the IC tag 2 as the radio wave information acquisition result. Therefore, it is possible to detect the noise information and the noise cancellation information have groups Dzu to transmit a data request signal from the R / W device 3 to the IC tag 2, or trip cause of the inverter device 1 is a noise not Can be identified from the outside, and convenience is improved.

It was recorded driving information and trip information to EEPROM57 the IC tag 2 have groups Dzu to transmit the driving information and trip information from the inverter control circuit 15 to the IC tag 2. Therefore, it is possible to detect the operating information and trip information have groups Dzu to transmit a data request signal from the R / W device 3 to the IC tag 2, thereby improving convenience.

Driving power was supplied to the IC tag 2 from the control power circuit 34 of the inverter device 1. Therefore, even when the inverter apparatus 1 has tripped detecting gastric group Dzu with driving information trip information, noise information, noise cancellation information to transmit the data request signal from the R / W device 3 to the IC tag 2 This improves convenience.

It outputs the power cutoff signal inverter device 1 is have group Dzu to detecting the noise information from the IC tag 2, and configured to trip the electromagnetic contactor 20. For this reason, since the most reliable protection function which interrupts | blocks a main power supply can be activated at the time of use of the R / W apparatus 3, the accuracy of malfunction prevention of the inverter apparatus 1 increases.

The inverter device 1 outputs a display signal and sound signal have groups Dzu to detecting the noise information from the IC tag 2 to the outside and configured to drive the display 32 and buzzer 33. For this reason, when the user uses the R / W device 3, an alarm is generated for both video and sound, so that a trip associated with the use of the R / W device 3 can be notified to the user.

In the above embodiment 1, a configuration where the IC tag 2 to obtain noise information and noise cancellation information into a voltage signal as an electric wave information have groups Dzu from the voltage detection circuit 53, it is not limited thereto, e.g. Gets the voltage value itself as a radio wave information have groups Dzu the voltage signal from the IC tag 2 is a voltage detection circuit 53 may be configured to be recorded in EEPROM 57. In this configuration, and it transmits the detection result of the voltage value to the inverter control circuit 15 from the IC tag 2, and determines the presence or absence of noise inverter control circuit 15 is had group Dzu on a reception result of the voltage value, the determination result of the presence of noise It is preferable to record at least one of the reception results of the voltage value in the EEPROM 26.

  In the first embodiment, power is supplied from the control power supply circuit 34 of the inverter device 1 to the IC tag 2. However, the present invention is not limited to this. For example, the IC tag 2 includes a battery as a power source, The tag 2 may be driven only by a power source wirelessly transmitted from the R / W device 3. Hereinafter, a second embodiment of the present invention in which the IC tag 2 is driven only by a power source wirelessly transmitted from the R / W device 3 will be described.

  As shown in FIG. 8, the IC tag 2 includes an antenna 51, a power supply circuit 52, a voltage detection circuit 53, an information conversion circuit 54, a tag control circuit 55, a transmission circuit 56, and an EEPROM 57, and is generated by the power supply circuit 52. Only the DC power supply to be used is the drive power supply. The IC tag 2 is driven only when the R / W device 3 is used, and the CPU of the tag control circuit 55 moves to step S53 in FIG. The voltage signal from 53 is detected. In step S55, it is uniquely determined that there is noise. In step S57, the occurrence of noise and the current date and time are recorded in the EEPROM 57. In step S58, noise information is transmitted to the inverter control circuit 15.

The CPU 23 of the inverter control circuit 15 determines whether or not there is noise information from the IC tag 2 when the process proceeds to step S1 in FIG. If it is detected that there is noise information, the noise flag is turned on in step S2. If it is detected that there is no noise information, the noise flag is turned off in step S4. That is, the inverter device 1 have groups Dzu that on the noise flag in step S6 is detected when the RUN key 29 is operated in a state of use of the R / W device 3 is held in a stopped state, the R / W device 3 non when the RUN key 29 is operated in a use state inverter device 1 have groups Dzu that off noise flag in step S6 is detected is started to operate.

  When the CPU 23 of the inverter control circuit 15 receives the noise information from the IC tag 2 in step S23, the CPU 22 stops the operation of the motor 22 in steps S24 to S25. In step S26 to step S27, the user is notified of the occurrence of a trip, and in step S28 to step S33, trip information is recorded in the EEPROM 26.

  When the CPU 23 of the inverter control circuit 15 proceeds from step S33 to step S35, the detection result of the trip cause is compared with noise. In this case, it is determined that the cause of the trip is noise, and the presence or absence of noise information from the IC tag 2 is determined in step S38. For example, when the oscillation operation of the R / W device 3 stops, the IC tag 2 stops driving, and noise information from the IC tag 2 disappears. In this case, the CPU 23 of the inverter control circuit 15 determines that the noise information from the IC tag 2 has disappeared in step S38, and restarts the operation of the motor 22 in step S37. That is, the inverter device 1 automatically stops and restarts the motor 22 in conjunction with the start and stop of use of the R / W device 3.

When the CPU 23 of the inverter control circuit 15 detects a stop command from the operation panel 27 in step S13 in FIG. 10, it executes steps S16 to S20 and records the operation information in the EEPROM 26. Further, when detecting the internal trip cause in step S22 the trip information is recorded in the EEPROM26 and have groups Dzu to performing step S28~ step S33. That is, the inverter device 1 does not transmit the operation information acquisition result and the trip information acquisition result to the IC tag 2 but stores them in the EEPROM 26. Therefore, only the noise information acquired by itself is stored in the EEPROM 57 of the IC tag 2, and when the CPU of the tag control circuit 55 receives the data request signal from the R / W device 3 in step S67 of FIG. 9, the EEPROM 57 in step S68. Noise information is detected, and the noise information is transmitted to the R / W device 3 in step S69.

According to the second embodiment, the communication radio wave oscillated from the R / W device 3 is rectified by the IC tag 2, and the drive power for the IC tag 2 is obtained by a different path from the inverter device 1. Therefore, detecting noise information have groups Dzu to transmit a data request signal from the even R / W device 3 to the IC tag 2 in a state where the main power is state and blocking is disabled in the inverter device 1 This improves convenience.

In the second embodiment, a configuration where the IC tag 2 to obtain the noise information as radio wave information have groups Dzu the voltage signal from the voltage detection circuit 53 is not limited to this, for example, IC tag 2 Gets the voltage value itself as a radio wave information have groups Dzu the voltage signal from the voltage detection circuit 53 may be configured to be recorded in EEPROM 57. In this configuration, and it transmits the detection result of the voltage value to the inverter control circuit 15 from the IC tag 2, and determines the presence or absence of noise inverter control circuit 15 is had group Dzu on a reception result of the voltage value, the determination result of the presence of noise It is preferable to record at least one of the reception results of the voltage value in the EEPROM 26.

  In the first to second embodiments, the IC tag 2 performs the noise detection process. However, the present invention is not limited to this. For example, the inverter control circuit 15 may perform the noise detection process. Hereinafter, a third embodiment of the present invention in which the noise detection function is shared by the inverter control circuit 15 will be described.

As shown in FIG. 11, the IC tag 2 includes an antenna 51, a power supply circuit 52, a voltage detection circuit 53, and an information conversion circuit 54. The voltage detection circuit 53 and the information conversion circuit 54 are wired to the inverter control circuit 15. Connected with. The IC tag 2 is intended to be driven have groups Dzu tag power control power circuit 34 of the inverter device 1 is produced, CPU 23 of the inverter control circuit 15 the voltage signal from the voltage detection circuit 53 at step S39 of FIG. 12 In step S40, the detection result of the voltage signal is compared with a noise determination value recorded in advance in the ROM 24. Here, when it is detected that the detection result of the voltage signal is greater than the noise determination value, the noise flag is turned on in step S2, and when it is detected that the detection result of the voltage signal is less than or equal to the noise determination value, the noise flag is set in step S4. Turn off. That is, the RUN key 29 is validated when the R / W device 3 is not used, and invalidated when the R / W device 3 is used.

When the CPU 23 of the inverter control circuit 15 detects that there is no internal cause of the trip in step S22, the voltage signal from the voltage detection circuit 53 is detected in step S41, and the detection result of the voltage signal is determined as a noise judgment value in step S42. Compare with Here, when it is detected that the detection result of the voltage signal is less than or equal to the noise determination value, it is determined that there is no noise in step S43, and when it is detected that the detection result of the voltage signal is greater than the noise determination value, there is noise in step S44. judge. That is, the inverter control circuit 15 corresponds to the radio wave information acquiring means for acquiring radio information have groups Dzu on a reception result of the antenna 51.

If the CPU 23 of the inverter control circuit 15 determines that there is noise in step S44, the operation of the motor 22 is stopped in steps S24 to S25. In step S26 to step S27, the user is notified of the occurrence of a trip, and in step S28 to step S33, trip information is recorded in the EEPROM 26. The CPU23 of the inverter control circuit 15 has a wireless communication function, stores the result and the operation information from EEPROM26 when it detects a data request signal from the R / W device 3 have based Dzu the demodulation results of the information converting circuit 54 The trip information storage result is detected, and the operation information detection result and trip information detection result are transmitted from the antenna 51 of the IC tag 2 to the R / W device 3. The inverter control circuit 15 corresponds to radio wave information transmission means and management information transmission means, and the EEPROM 26 corresponds to radio wave information recording means and management information recording means.

When the CPU 23 of the inverter control circuit 15 detects that the trip cause is noise in step S35, the CPU 23 detects the voltage signal from the voltage detection circuit 53 in step S45, and compares the detection result of the voltage signal with the noise determination value in step S46. To do. Wherein the voltage signal detection result goes to step S37 when it is detected that is below the noise judgment value, and have groups Dzu to put the main power resumes operation of the motor 22. That is, the inverter device 1 automatically stops and restarts operation in conjunction with the start and stop of use of the R / W device 3.

In the above Examples 1 to 3, the trip generated broadcast by video have groups Dzu to the inverter control circuit 15 displays the trip cause the display unit 32, and have groups Dzu to cause the buzzer 33 reviews of it is configured to notify the sound generation, it is not limited thereto, may be configured to notify example a light source such as an LED to have group Dzu to emit trip generated in the light.

  In the said Example 1-Example 3, although what controlled the motor 22 as the inverter apparatus 1 was illustrated, it is not limited to this, For example, even if it drives and controls the light source of a lighting fixture good.

  In the first to third embodiments, the IC tag 2 is fixed to the surface of the inverter case 11. However, the present invention is not limited to this. For example, the IC tag 2 may be housed in the inverter case 11. In this case, the inverter case 11 may be provided with a window, and the antenna 51 of the IC tag 2 may transmit and receive radio waves through the window.

In the above Examples 1 to 3, those tag control circuit 55 or the inverter control circuit 15 is set to determine configuration whether the noise is present have groups Dzu the voltage signal from the voltage detection circuit 53, which is limited to Instead, for example, it may be configured to detect the intensity of radio waves.

  In the said Example 1- Example 3, although it was set as the structure which stops and trips the inverter apparatus 1 at the time of use of the R / W apparatus 3, it is not limited to this, For example, as a structure which stops or trips Also good.

In the first to third embodiments, an electrical filter is interposed between the antenna 51 of the IC tag 2 and the power circuit 52, and only radio waves in a specific frequency band are supplied to the power circuit 52 through the filter. Also good. In this configuration, the detection processing of the noise is performed have only based Dzu radio waves of a specific frequency band to be supplied through the filter to the power supply circuit 52.

FIG. 1 is a diagram showing an embodiment 1 of the present invention (a diagram showing an external appearance of an inverter device, an IC tag, and an R / W device) Block diagram showing the electrical configuration of the inverter device Flow chart showing processing contents of inverter control circuit The figure which shows the record contents of the non-volatile memory Block diagram showing the electrical configuration of the R / W device Block diagram showing electrical configuration of IC tag Flow chart showing processing contents of tag control circuit The figure which shows Example 2 of this invention (the block diagram which shows the electrical constitution of an IC tag) Flow chart showing processing contents of tag control circuit Flow chart showing processing contents of inverter control circuit The figure which shows Example 3 of this invention (block diagram which shows the electrical structure of an IC tag) Flow chart showing processing contents of inverter control circuit

Explanation of symbols

1 is an inverter device (electronic device), 2 is an IC tag (wireless communication device), 3 is an R / W device (wireless communication device), 15 is an inverter control circuit (operation control means, power supply cutoff means, external signal output means) , Radio wave information transmission means, management information transmission means), 22 is a motor (load), 26 is an EEPROM (radio wave information recording means, management information recording means), 51 is an antenna, 52 is a power circuit (power generation means), 53 is A voltage detection circuit (signal output means), 55 is a tag control circuit (radio wave information transmission means, management information detection means, management information transmission means), and 57 is an EEPROM (radio wave information recording means, management information recording means).

Claims (3)

An inverter device equipped with a wireless communication device,
The wireless communication device
An antenna capable of receiving radio waves,
Signal output means for outputting a power signal based on the reception state of the antenna;
Power generation means for generating a power based on a radio signal received by the antenna;
Radio wave information recording means for recording radio wave information based on receiving a radio wave signal transmitted from an external wireless communication device through the antenna;
Radio wave information transmitting means for transmitting a recording result of the radio wave information recording means to an external wireless communication device through the antenna;
With
An inverter device comprising operation control means for controlling operation details of a load based on radio wave information based on the power signal. The inverter apparatus according to claim 1, characterized in that with a power supply interruption means for interrupting the power supply to the load based on the radio wave information based on the power signal. The inverter apparatus according to claim 1 or 2, characterized in that it comprises an external signal output means for outputting an output signal to the outside based on the radio wave information based on the power signal.

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