Elevator contact circuit device

Abstract

To provide an elevator contact circuit device that can reduce power consumption in a circuit including contacts.SOLUTION: A contact circuit device 1 comprises a contact circuit 30, a control circuit 20, and a processing circuit 40. The processing circuit 40 outputs an operation signal to the control circuit 20 when it is necessary to check the continuity state of the contact circuit 30. When the operation signal is input from the processing circuit 40, the control circuit 20 applies a rated voltage to the contact circuit 30. If the operation signal is not input from the processing circuit 40, the control circuit 20 applies no voltage to the contact circuit 30 or applies a voltage lower than the rated voltage. The processing circuit 40 performs suppression control to reduce the amount of change in the applied voltage when the voltage rises and falls when the rated voltage is applied to the contact circuit 30.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a contact circuit device for an elevator. [Background technology]

[0002] Patent Document 1 describes an elevator device. The elevator device described in Patent Document 1 includes a safety circuit and a DC / DC converter that supplies power to the safety circuit. The safety circuit includes multiple safety switches connected in series. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-96881 Summary of the Invention [Problem to be solved by the invention]

[0004] Patent Document 1 describes that a DC / DC converter is provided as a power source for supplying power to the safety circuit, making it possible to apply a high voltage to the safety circuit. Conventional elevator systems, including the elevator system described in Patent Document 1, have had the problem of large power consumption in circuits including contacts.

[0005] The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a contact circuit device for an elevator that can reduce power consumption of a circuit including a contact. [Means for solving the problem]

[0006] The elevator contact circuit device according to the present disclosure comprises a first contact circuit including one or more contacts, a first control circuit for adjusting the voltage applied to the first contact circuit, and a processing circuit for outputting a first operation signal to the first control circuit when it is necessary to check the continuity state of the first contact circuit. The first control circuit applies a rated voltage to the first contact circuit when the first operation signal is input from the processing circuit, and applies no voltage or a voltage lower than the rated voltage to the first contact circuit when the first operation signal is not input from the processing circuit. The processing circuit performs suppression control to reduce the amount of change in the applied voltage when the voltage rises and falls when the rated voltage is applied to the first contact circuit. [Effects of the Invention]

[0007] The elevator contact circuit device according to the present disclosure can reduce the power consumption of circuits including contacts. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating an example of a contact circuit device for an elevator in embodiment 1. FIG. [Figure 2] 4 is a diagram showing another example of the elevator contact circuit device in embodiment 1. FIG. [Figure 3] 4 is a diagram showing another example of the elevator contact circuit device in embodiment 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] The following detailed description will be given with reference to the drawings. Duplicate descriptions will be simplified or omitted as appropriate. In each drawing, the same reference numerals indicate the same or corresponding parts.

[0010] Embodiment 1 Fig. 1 is a diagram showing an example of a contact circuit device 1 for an elevator in embodiment 1. The contact circuit device 1 includes a power supply 10, a control circuit 20, a contact circuit 30, and a processing circuit 40. Fig. 1 shows the simplest example in which the contact circuit device 1 includes one control circuit 20 and one contact circuit 30.

[0011] 1 shows a preferred example in which a contact circuit 30 includes a plurality of contacts 31 connected in series. The plurality of contacts 31 may be connected in parallel. Some of the plurality of contacts 31 may be connected in parallel to other contacts 31.

[0012] As an example, contact 31 is a contact of a door switch provided at an elevator hall. The door switch is a switch for detecting the opening and closing of a door provided at the hall. When the door is fully closed, the contact of the door switch closes. When the door is open, the contact of the door switch opens. A door switch is provided at each elevator hall. In this example, contact circuit 30 includes the contact of the door switch provided at each hall.

[0013] As another example, the contact circuit 30 may include only one contact 31. For example, the contact 31 may be the contact of a door switch provided in an elevator car. The contact 31 may also be the contact of a position detection switch provided in the car.

[0014] As another example, the contacts 31 may be contacts for equipment necessary for the elevator to communicate with other devices. Such other devices may include a fire alarm, a robot control device, etc. The robot control device is a device for controlling a robot that can move in the elevator car.

[0015] Examples of the contact 31 are not limited to these. The contact 31 may be a contact of another switch or a contact of another device.

[0016] 1, the contact circuit 30 includes a plurality of contacts 31 as well as a load resistor 32 and a photocoupler 33. The plurality of contacts 31, the resistor 32, and the light-emitting element of the photocoupler 33 are connected in series.

[0017] The power supply 10 supplies the control circuit 20 with the power required to apply the rated voltage to the contact circuit 30 .

[0018] The control circuit 20 is connected between the power supply 10 and the contact circuit 30. The control circuit 20 receives power from the power supply 10. The control circuit 20 has a function of adjusting the voltage applied to the contact circuit 30. In the example shown in FIG. 1 , the control circuit 20 includes a switching element 21 and a filter circuit 22. The switching element 21 is, for example, a transistor. Other elements may also be used as the switching element 21. The filter circuit 22 is a circuit for reducing high-frequency noise components, i.e., switching noise, generated when the switching element 21 performs switching. The filter circuit 22 is connected between the switching element 21 and the contact circuit 30.

[0019] The processing circuit 40 outputs a control signal to the control circuit 20. The control circuit 20 adjusts the voltage applied to the contact circuit 30 based on the control signal input from the processing circuit 40. In an elevator, it is necessary to check the open / closed state of the contacts 31 included in the contact circuit 30, i.e., the continuity state of the contact circuit 30. When it is necessary to check the continuity state of the contact circuit 30, the processing circuit 40 outputs an operation signal to the control circuit 20 as the control signal.

[0020] In the example shown in FIG. 1, an operation signal from the processing circuit 40 is input to the switching element 21. When the operation signal is input from the processing circuit 40, the control circuit 20 applies a preset rated voltage to the contact circuit 30. That is, when it is necessary to check the continuity state of the contact circuit 30, the processing circuit 40 outputs an operation signal to the switching element 21 of the control circuit 20 such that the rated voltage is applied to the contact circuit 30. In the example shown in FIG. 1, if all of the contacts 31 included in the contact circuit 30 are closed, the light-receiving element of the photocoupler 33 receives light emitted from the light-emitting element. This causes the photocoupler 33 to output a detection signal to the processing circuit 40. By receiving the detection signal from the photocoupler 33, the processing circuit 40 can detect that all of the contacts 31 included in the contact circuit 30 are closed.

[0021] On the other hand, the control circuit 20 does not apply a voltage to the contact circuit 30 unless an operation signal is input from the processing circuit 40. In other words, the processing circuit 40 does not output a control signal to the control circuit 20 when there is no need to check the conduction state of the contact circuit 30.

[0022] Note that "when it is necessary to check the continuity state of the contact circuit 30" and "when it is not necessary to check the continuity state of the contact circuit 30" are determined depending on the type of contacts 31 included in the contact circuit 30, etc. For example, depending on the type of contacts 31, "while the elevator car is traveling" may be a case where it is necessary to check the continuity state of the contact circuit 30, or a case where it is not necessary to check the continuity state of the contact circuit 30. "While the car is stopped" may be a case where it is necessary to check the continuity state of the contact circuit 30, or a case where it is not necessary to check the continuity state of the contact circuit 30. "While the car is at rest" may also be a case where it is not necessary to check the continuity state of the contact circuit 30.

[0023] In this example, when there is no need to check the continuity state of the contact circuit 30, no voltage is applied to the contact circuit 30. This makes it possible to reduce the power consumption of the contact circuit 30, i.e., the power consumed by the contact circuit device 1.

[0024] In this way, by controlling the timing of energizing the contact circuit 30, it is possible to reduce the power consumed by the contact circuit device 1. However, simply controlling the timing makes it easier for electromagnetic interference (EMI) to occur.

[0025] As an EMI countermeasure, the processing circuit 40 performs suppression control using an operation signal when the voltage rises and falls when the rated voltage is applied to the contact circuit 30. The suppression control reduces the amount of change in the voltage applied to the contact circuit 30 compared to when the suppression control is not performed. That is, the suppression control is performed when the voltage applied to the contact circuit 30 changes from 0 V to the rated voltage (e.g., 48 V) and when the voltage changes from the rated voltage to 0 V. This allows for gradual changes in the voltage applied to the contact circuit 30 during each period. In the example shown in FIG. 1 , the processing circuit 40 may perform chopper control on the switching element 21 to gradually change the duty ratio as the suppression control. This allows for the electromagnetic energy emitted from the contact circuit 30 to be dispersed over time when checking the continuity state and when checking the continuity state to be stopped, thereby reducing the impact on adjacent circuits or wiring.

[0026] The control circuit 20 shown in FIG. 1 is one example. As another example, the control circuit 20 may include elements or circuits capable of linear control. In this example, the processing circuit 40 performs linear control on the control circuit 20 as suppression control, gradually changing the voltage applied to the contact circuit 30. Even in this example, suppression control can be achieved.

[0027] As another example, in order to reduce the power consumed by the contact circuit device 1, the control circuit 20 may apply a voltage lower than the rated voltage to the contact circuit 30 when no operation signal is input from the processing circuit 40.

[0028] For example, if the contacts of the door switches provided at each landing are included in the contact circuit 30, and the elevator car has a 100 m elevation travel, the wiring included in the contact circuit 30 may be twice the elevation travel, i.e., longer than 200 m. In this way, if the wiring included in the contact circuit 30 is long and switching between 0 V and the rated voltage is frequent, the amount of electromagnetic energy emitted increases. In order to suppress the amount of electromagnetic energy emitted, the control circuit 20 may apply a voltage of, for example, half the rated voltage to the contact circuit 30 when no operation signal is input from the processing circuit 40.

[0029] In such a case, when there is no need to check the continuity state of contact circuit 30, processing circuit 40 outputs a standby signal as a control signal to control circuit 20. In the example shown in Fig. 1, the standby signal from processing circuit 40 is input to switching element 21. When the standby signal is input from processing circuit 40, control circuit 20 applies a voltage lower than the rated voltage to contact circuit 30. In other words, when there is no need to check the continuity state of contact circuit 30, processing circuit 40 outputs a standby signal to switching element 21 of control circuit 20 such that a voltage lower than the rated voltage is applied to contact circuit 30.

[0030] As another example, when an operation signal is not input from the processing circuit 40, the control circuit 20 may apply no voltage to the contact circuit 30 or may apply a voltage lower than the rated voltage. For example, the processing circuit 40 determines whether or not a first condition is met when there is no need to check the continuity state of the contact circuit 30. The first condition is a condition for outputting a standby signal as a control signal to the control circuit 20. As an example, the first condition may be set based on the type of contact 31, etc. The first condition may be met when the car is traveling. The first condition may be met when the car is stopped. The first condition may be met when the car is not at rest.

[0031] In this example, when there is no need to check the continuity state of the contact circuit 30, the processing circuit 40 outputs a standby signal as a control signal to the control circuit 20 if the first condition is met. When the standby signal is input from the processing circuit 40, the control circuit 20 applies a voltage lower than the rated voltage to the contact circuit 30. When there is no need to check the continuity state of the contact circuit 30, the processing circuit 40 does not output a control signal to the control circuit 20 unless the first condition is met. The control circuit 20 does not apply voltage to the contact circuit 30 unless it receives an operation signal or standby signal from the processing circuit 40.

[0032] Fig. 2 is a diagram showing another example of the contact circuit device 1 for an elevator in the first embodiment. The contact circuit device 1 shown in Fig. 2 differs from the contact circuit device 1 shown in Fig. 1 in that it includes a plurality of contact circuits 30. As shown in Fig. 2, the contact circuit device 1 may include a plurality of contact circuits 30. Although Fig. 2 shows an example in which the contact circuit device 1 includes two contact circuits 30, the contact circuit device 1 may include three or more contact circuits 30.

[0033] The control circuit 20 has a function of adjusting the voltage applied to each contact circuit 30. Specifically, when an operation signal is input from the processing circuit 40, the control circuit 20 applies a rated voltage to each contact circuit 30. When an operation signal is not input from the processing circuit 40, the control circuit 20 does not apply a voltage to each contact circuit 30 or applies a voltage lower than the rated voltage to each contact circuit 30.

[0034] Fig. 3 is a diagram showing another example of the elevator contact circuit device 1 in the first embodiment. In the example shown in Fig. 3, the contact circuit device 1 includes a power supply 10, a processing circuit 40, and multiple sets of control circuits 20 and contact circuits 30. Fig. 3 shows an example in which the contact circuit device 1 includes two sets of control circuits 20 and contact circuits 30, but the contact circuit device 1 may include three or more sets of control circuits 20 and contact circuits 30. Furthermore, the contact circuit device 1 may include multiple contact circuits 30 in one set, as in the example shown in Fig. 2.

[0035] In the following description, when it is necessary to distinguish between one set of control circuits 20 and contact circuits 30 and another set of control circuits 20 and contact circuits 30, the elements of the one set will be labeled with "A" and the elements of the other set will be labeled with "B." For example, as shown in FIG. 3, the contact circuit device 1 includes a power supply 10, control circuits 20A and 20B, contact circuits 30A and 30B, and a processing circuit 40.

[0036] The power supply 10, the control circuits 20, the contact circuits 30, and the processing circuit 40 are basically the same as in any of the above-mentioned examples.

[0037] The power supply 10 supplies the necessary power to each control circuit 20 .

[0038] 3, like FIG. 1, shows a preferred example in which contact circuit 30A includes multiple contacts 31A connected in series, and contact circuit 30B includes multiple contacts 31B connected in series. Contact circuit 30A may include only one contact 31A, and contact circuit 30B may include only one contact 31B.

[0039] The control circuit 20A is connected between the power supply 10 and the contact circuit 30A. The control circuit 20A is supplied with power from the power supply 10. The control circuit 20A has a function of adjusting the voltage applied to the contact circuit 30A. In the example shown in Fig. 3, the control circuit 20A includes a switching element 21A and a filter circuit 22A for reducing switching noise.

[0040] The control circuit 20B is connected between the power supply 10 and the contact circuit 30B. The control circuit 20B is supplied with power from the power supply 10. The control circuit 20B has a function of adjusting the voltage applied to the contact circuit 30B. In the example shown in Fig. 3, the control circuit 20B includes a switching element 21B and a filter circuit 22B for reducing switching noise.

[0041] The processing circuit 40 outputs control signals to each of the control circuits 20A and 20B. For example, the processing circuit 40 outputs a first control signal to the control circuit 20A. The control circuit 20A adjusts the voltage applied to the contact circuit 30A based on the first control signal input from the processing circuit 40. When it is necessary to check the conduction state of the contact circuit 30A, the processing circuit 40 outputs a first operation signal to the control circuit 20A as the first control signal.

[0042] Furthermore, the processing circuit 40 outputs a second control signal to the control circuit 20B. The control circuit 20B adjusts the voltage applied to the contact circuit 30B based on the second control signal input from the processing circuit 40. When it is necessary to check the conduction state of the contact circuit 30B, the processing circuit 40 outputs a second operation signal to the control circuit 20B as the second control signal.

[0043] The control circuit 20A applies the rated voltage to the contact circuit 30A when a first operation signal is input from the processing circuit 40. Furthermore, as a countermeasure against EMI, the processing circuit 40 performs suppression control using the first operation signal at the time of voltage rise and fall when the rated voltage is applied to the contact circuit 30A.

[0044] The control circuit 20B applies the rated voltage to the contact circuit 30B when the second operation signal is input from the processing circuit 40. Furthermore, as a countermeasure against EMI, the processing circuit 40 performs suppression control using the second operation signal at the time of voltage rise and fall when the rated voltage is applied to the contact circuit 30B.

[0045] On the other hand, the control circuit 20A does not apply voltage to the contact circuit 30A unless a first operation signal is input from the processing circuit 40. The control circuit 20A may apply a voltage lower than the rated voltage to the contact circuit 30A when the first operation signal is not input from the processing circuit 40. In such a case, when there is no need to check the continuity state of the contact circuit 30A, the processing circuit 40 outputs a first standby signal to the control circuit 20A as the first control signal. When the first standby signal is input from the processing circuit 40, the control circuit 20A applies a voltage lower than the rated voltage to the contact circuit 30A.

[0046] Similarly, the control circuit 20B does not apply voltage to the contact circuit 30B unless a second operation signal is input from the processing circuit 40. The control circuit 20B may apply a voltage lower than the rated voltage to the contact circuit 30B when a second operation signal is not input from the processing circuit 40. In such a case, when there is no need to check the continuity state of the contact circuit 30B, the processing circuit 40 outputs a second standby signal to the control circuit 20B as the second control signal. When the second standby signal is input from the processing circuit 40, the control circuit 20B applies a voltage lower than the rated voltage to the contact circuit 30B.

[0047] In the contact circuit device 1 shown in Fig. 3, the processing circuit 40 may control the control circuits 20A and 20B in a time-division manner. In such a case, the processing circuit 40 outputs the first operation signal and the second operation signal in sequence. In other words, the processing circuit 40 does not output the first operation signal and the second operation signal simultaneously.

[0048] 3, the control of the control circuit 20A and the control of the control circuit 20B do not have to be the same. For example, the control circuit 20A may apply a voltage lower than the rated voltage to the contact circuit 30A unless the first operation signal is input, and the control circuit 20B may not apply a voltage to the contact circuit 30B unless the second operation signal is input.

[0049] That is, in this example, the processing circuit 40 outputs a first standby signal to the control circuit 20A when there is no need to check the continuity state of the contact circuit 30A, and does not output a control signal to the control circuit 20B when there is no need to check the continuity state of the contact circuit 30B. This example is particularly effective when the wiring length of the contact circuit 30A is longer than the wiring length of the contact circuit 30B, such as when the contacts of the door switches provided at each landing are included in the contact circuit 30A.

[0050] In the contact circuit device 1 shown in FIG. 3, when there is no need to check the conduction state of the contact circuit 30A, the processing circuit 40 may output a first standby signal as a first control signal to the control circuit 20A when a first condition is met. The first condition is a condition for outputting the first standby signal as the first control signal to the control circuit 20A. When the first standby signal is input from the processing circuit 40, the control circuit 20A applies a voltage lower than the rated voltage to the contact circuit 30A. If neither the first operating signal nor the first standby signal is input from the processing circuit 40, the control circuit 20A does not apply voltage to the contact circuit 30A.

[0051] Similarly, when there is no need to check the conduction state of contact circuit 30B, processing circuit 40 may output a second standby signal as a second control signal to control circuit 20B when a second condition is met. The second condition is a condition for outputting the second standby signal as a second control signal to control circuit 20B. When the second standby signal is input from processing circuit 40, control circuit 20B applies a voltage lower than the rated voltage to contact circuit 30B. If neither the second operation signal nor the second standby signal is input from processing circuit 40, control circuit 20B does not apply voltage to contact circuit 30B.

[0052] Examples of aspects that may be included in the present disclosure are set forth below as appendices.

[0053] [Appendix 1] a first contact circuit including one or more contacts; a first control circuit for adjusting a voltage applied to the first contact circuit; a processing circuit that outputs a first operation signal to the first control circuit when it is necessary to check the conduction state of the first contact circuit; Equipped with the first control circuit applies a rated voltage to the first contact circuit when the first operation signal is input from the processing circuit, and does not apply a voltage to the first contact circuit or applies a voltage lower than the rated voltage to the first contact circuit when the first operation signal is not input from the processing circuit; The processing circuit is an elevator contact circuit device that performs suppression control to reduce the amount of change in applied voltage when the voltage rises and falls when the rated voltage is applied to the first contact circuit. [Appendix 2] the first control circuit includes a switching element and a filter circuit for reducing switching noise; the processing circuit performs chopper control on the switching element to gradually change a duty ratio as the suppression control, 2. The elevator contact circuit device according to claim 1, wherein the filter circuit is connected between the switching element and the first contact circuit. [Appendix 3] The elevator contact circuit device described in Appendix 1, wherein the processing circuit performs linear control on the first control circuit as the suppression control to gradually change the voltage applied to the first contact circuit. [Appendix 4] the processing circuit outputs a first standby signal to the first control circuit when a first condition is met in a case where there is no need to check the conduction state of the first contact circuit; 4. An elevator contact circuit device according to any one of Supplementary Note 1 to Supplementary Note 3, wherein the first control circuit applies a voltage lower than a rated voltage to the first contact circuit when the first standby signal is input from the processing circuit, and does not apply voltage to the first contact circuit when neither the first operation signal nor the first standby signal is input from the processing circuit. [Appendix 5] a second contact circuit including one or more contacts; a second control circuit for adjusting a voltage applied to the second contact circuit; Further provided with the processing circuit outputs a second operation signal to the second control circuit when it is necessary to check the conduction state of the second contact circuit; the second control circuit applies a rated voltage to the second contact circuit when the second operation signal is input from the processing circuit, and does not apply a voltage to the second contact circuit or applies a voltage lower than the rated voltage to the second contact circuit when the second operation signal is not input from the processing circuit; 4. An elevator contact circuit device according to any one of claims 1 to 3, wherein the processing circuit performs suppression control to reduce the amount of change in applied voltage when the voltage rises and falls when a rated voltage is applied to the second contact circuit. [Appendix 6] An elevator contact circuit device as described in Appendix 5, wherein the processing circuit does not output the first operation signal and the second operation signal simultaneously. [Appendix 7] the first control circuit applies a voltage lower than a rated voltage to the first contact circuit when the first operation signal is not input from the processing circuit; 7. An elevator contact circuit device according to claim 5 or 6, wherein the second control circuit does not apply voltage to the second contact circuit unless the second operation signal is input from the processing circuit. [Appendix 8] the processing circuit outputs a second standby signal to the second control circuit when a second condition is satisfied in a case where there is no need to check the conduction state of the second contact circuit; The elevator contact circuit device described in Appendix 7, wherein the second control circuit applies a voltage lower than a rated voltage to the second contact circuit when the second standby signal is input from the processing circuit, and does not apply voltage to the second contact circuit when neither the second operation signal nor the second standby signal is input from the processing circuit. [Appendix 9] 9. An elevator contact circuit device according to claim 7 or 8, wherein the wiring length of the first contact circuit is longer than the wiring length of the second contact circuit. [Appendix 10] 10. An elevator contact circuit device according to claim 9, wherein the first contact circuit includes contacts of door switches provided at each elevator hall. [Explanation of symbols]

[0054] 1 Contact circuit device 10 Power supply 20 Control circuit 21 Switching element 22 Filter Circuit 30 contact circuit 31 Contacts 32 resistor 33 Photocoupler 40 Processing circuit

Claims

1. a first contact circuit including one or more contacts; a first control circuit for adjusting a voltage applied to the first contact circuit; a processing circuit that outputs a first operation signal to the first control circuit when it is necessary to check the conduction state of the first contact circuit; Equipped with the first control circuit applies a rated voltage to the first contact circuit when the first operation signal is input from the processing circuit, and does not apply a voltage to the first contact circuit or applies a voltage lower than the rated voltage when the first operation signal is not input from the processing circuit; The processing circuit is an elevator contact circuit device that performs suppression control to reduce the amount of change in applied voltage when the voltage rises and falls when the rated voltage is applied to the first contact circuit.

2. the first control circuit includes a switching element and a filter circuit for reducing switching noise; the processing circuit performs chopper control on the switching element to gradually change a duty ratio as the suppression control, 2. The elevator contact circuit device according to claim 1, wherein the filter circuit is connected between the switching element and the first contact circuit.

3. 2. The elevator contact circuit device according to claim 1, wherein the processing circuit performs linear control on the first control circuit as the suppression control to gradually change the voltage applied to the first contact circuit.

4. the processing circuit outputs a first standby signal to the first control circuit when a first condition is satisfied in a case where there is no need to check the conduction state of the first contact circuit; 4. An elevator contact circuit device according to claim 1, wherein the first control circuit applies a voltage lower than a rated voltage to the first contact circuit when the first standby signal is input from the processing circuit, and does not apply voltage to the first contact circuit when neither the first operation signal nor the first standby signal is input from the processing circuit.

5. a second contact circuit including one or more contacts; a second control circuit for adjusting a voltage applied to the second contact circuit; Further provided with the processing circuit outputs a second operation signal to the second control circuit when it is necessary to check the conduction state of the second contact circuit; the second control circuit applies a rated voltage to the second contact circuit when the second operation signal is input from the processing circuit, and does not apply a voltage to the second contact circuit or applies a voltage lower than the rated voltage to the second contact circuit when the second operation signal is not input from the processing circuit; 4. An elevator contact circuit device according to claim 1, wherein the processing circuit performs suppression control to reduce the amount of change in the applied voltage when the voltage rises and falls when the rated voltage is applied to the second contact circuit.

6. 6. The elevator contact circuit device according to claim 5, wherein the processing circuit does not output the first operation signal and the second operation signal simultaneously.

7. the first control circuit applies a voltage lower than a rated voltage to the first contact circuit when the first operation signal is not input from the processing circuit; 6. The elevator contact circuit device according to claim 5, wherein the second control circuit does not apply a voltage to the second contact circuit unless the second operation signal is input from the processing circuit.

8. the processing circuit outputs a second standby signal to the second control circuit when a second condition is satisfied in a case where there is no need to check the conduction state of the second contact circuit; 8. An elevator contact circuit device according to claim 7, wherein the second control circuit applies a voltage lower than a rated voltage to the second contact circuit when the second standby signal is input from the processing circuit, and does not apply voltage to the second contact circuit when neither the second operation signal nor the second standby signal is input from the processing circuit.

9. The elevator contact circuit device according to claim 7, wherein the wiring length of the first contact circuit is longer than the wiring length of the second contact circuit.

10. 10. The elevator contact circuit device according to claim 9, wherein the first contact circuit includes a contact of a door switch provided at each elevator hall.

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