Driver test system

Abstract

The utility model discloses a driver test system, which comprises a test module and a control module, and the test module comprises a circuit breaker, a first control unit and a second control unit. According to the driver test system provided by the utility model, the driver test work can be automatically completed, the connection of the driver and the power supply is controlled by the system, manual power-on and power-off operations are not needed, the circuit breaker can be pressed down to forcibly cut off power in an emergency, and the driver test system is safe and reliable. The drivers of the same series are controlled through one circuit breaker, the testing of various drivers can be compatible, debugging and wiring of testers are facilitated, and the operation is simple.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing systems, in particular to a driver testing system. Background Art

[0002] A drive is an electronic device used to control the movement of mechanical equipment. It receives signals from a controller and converts them into drive signals to power various mechanical systems, such as motors, pumps, and fans. The type and function of a drive vary depending on the application, including stepper drives, servo drives, and inverters. They are widely used in various fields, including industrial automation, household appliances, and automotive systems. The primary function of a drive is to provide precise speed, position, and torque control to meet specific application requirements.

[0003] The driver needs to be tested to see if it can properly drive the motor. Currently, there is a lack of equipment specifically designed for driver testing, making it difficult to complete this test quickly and efficiently. Furthermore, driver testing involves high-voltage power, making manual testing dangerous.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a driver testing system, which can automatically complete the driver testing work without manual power-on and power-off operations, and is safe and reliable.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A driver testing system includes a test module and a control module. The test module includes a circuit breaker, a first control unit, and a second control unit. The first control unit is connected to a first-phase alternating current via a circuit breaker. The circuit breaker is used to control the on / off state between the first control unit and the first-phase alternating current. The first control unit is connected to a corresponding power interface on a driver. The first control unit is used to control the on / off state between the driver's power interface and the circuit breaker based on its own on / off state. The second control unit is connected to a second-phase alternating current and a third-phase alternating current via a circuit breaker. The circuit breaker is used to control the on / off state between the second control unit and the second-phase alternating current and the third-phase alternating current. The second control unit is connected to two corresponding power interfaces on the driver. The second control unit is used to control the on / off state between the driver's two power interfaces and the circuit breaker based on its own on / off state. The control module is connected to the first control unit, the second control unit, and a power supply voltage. The control module is used to control the on / off state between the first control unit and the second control unit and the power supply voltage to control the on / off state of the first control unit and the second control unit.

[0008] In one or more embodiments of the present invention, the test module also includes a third control unit, which is connected to the AC power supply through a circuit breaker, and the circuit breaker is used to control the on and off between the third control unit and the AC power supply. The third control unit is connected to the control power interface of the driver, and the third control unit is used to control the on and off between the control power interface of the driver and the circuit breaker based on its own on and off control; the third control unit is connected to the control module, and the control module is also used to control the on and off between the third control unit and the power supply voltage to control the on and off of the third control unit.

[0009] In one or more embodiments of the present invention, the control module includes a connected controller and a relay, the controller is used to generate a control signal, the relay is connected to the first control unit, the second control unit and the power supply voltage, and the relay controls the on and off between the first control unit, the second control unit and the power supply voltage based on the control signal.

[0010] In one or more embodiments of the present invention, the control module includes a connected controller and a relay, the controller is used to generate a control signal, the relay is connected to the first control unit, the second control unit, the third control unit and the power supply voltage, and the relay controls the on and off between the first control unit, the second control unit and the third control unit and the power supply voltage based on the control signal.

[0011] In one or more embodiments of the present invention, the control module further includes a display module and / or an input module connected to the controller.

[0012] In one or more embodiments of the present invention, the relay is connected to the control power interface of the driver, and the relay is also used to control the on / off connection between the control power interface of the driver and the power supply voltage.

[0013] In one or more embodiments of the present invention, the test system further includes a switching power supply connected to the AC power supply and the control module, and the switching power supply is used to convert the AC power into a power supply voltage and transmit it to the control module.

[0014] In one or more embodiments of the present invention, the first control unit includes a first contactor, the first contactor includes a first coil and a first switch, the first coil is connected to the control module, and the first switch is used to control the on and off between the power interface of the driver and the circuit breaker; and / or the second control unit includes a second contactor, the second contactor includes two second coils and two second switches, the second coils are both connected to the control module, and the two second switches are respectively used to control the on and off between the two power interfaces of the driver and the circuit breaker.

[0015] In one or more embodiments of the present invention, the third control unit includes a third contactor, the third contactor includes a third coil and a third switch, the third coil is connected to the control module, and the third switch is used to control the on and off between the control power interface of the driver and the circuit breaker.

[0016] In one or more embodiments of the present invention, a plurality of test modules are provided.

[0017] Compared to existing technologies, the driver testing system of this utility model can automatically complete driver testing. The connection between the driver and the power supply is controlled by the system, eliminating the need for manual power-on and power-off operations. In an emergency, a circuit breaker can be pressed to forcibly disconnect the power, ensuring safety and reliability. By controlling the same series of drivers with a single circuit breaker, it is compatible with multiple driver tests, making debugging and wiring easier for testers and simpler to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a structural diagram of the driver testing system in Example 1 of the present utility model.

[0020] Figure 2 This is a structural diagram of the driver testing system in Example 2 of the present utility model. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0022] The terms "coupled," "connected," or "connected" as used in this specification encompass both direct and indirect connections. An indirect connection is a connection made through an intermediate medium, such as an electrically conductive medium, which may have parasitic inductance or capacitance. An indirect connection may also include a connection through other active or passive devices, such as switches, follower circuits, or other circuits or components, to achieve the same or similar functional objectives. Furthermore, in the invention, terms such as "first" and "second" are primarily used to distinguish one technical feature from another and do not necessarily require or imply a specific relationship, quantity, or order between these technical features.

[0023] In the detailed description of the specification, reference is made to the accompanying drawings forming a part thereof, wherein like reference numerals designate like parts throughout, and wherein exemplary embodiments that may be implemented are shown by way of example. It should be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present disclosure. Therefore, the following detailed description should not be construed in a limiting sense.

[0024] The various operations in the specification may be described as multiple discrete actions or operations in a manner that is most helpful in understanding the claimed subject matter. However, the order of description should not be interpreted as implying that these operations must be sequentially related. Specifically, these operations may not be performed in the order presented. The described operations may be performed in an order different from the described embodiments. Various additional operations may be performed and / or the described operations may be omitted in additional embodiments.

[0025] For the purposes of this disclosure, the phrase "A and / or B" means (A), (B), or (A and B). For the purposes of this disclosure, the phrase "A, B and / or C" means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B and C).

[0026] Various components and devices may be referred to or shown in the singular form in this document (for example, "MOS tube", "transistor", "switch", etc.), but this is only for convenience of discussion, and any element referred to in the singular form may include multiple such elements according to the teachings of this document.

[0027] The specification uses the phrases "in one embodiment," "in other embodiments," or "in some embodiments," which can each refer to one or more of the same or different embodiments. In addition, the terms "including," "comprising," "having," etc. used with respect to the embodiments of the present disclosure are synonymous.

[0028] Example 1

[0029] like Figure 1 As shown, a driver testing system in one embodiment of the present invention includes a testing module, a control module, a switching power supply and a power supply bar.

[0030] In one embodiment, a plurality of test modules are provided, each test module corresponding to a type of driver. In other embodiments, only one test module may be provided.

[0031] The following is an example of driver A and test module 10: Driver A requires a main power voltage of 380V and a control power voltage of 220V. Driver A is connected to the motor and provides the motor with three-phase power of U, V, and W to drive the motor to rotate.

[0032] The test module 10 includes a circuit breaker 11 , a first control unit 12 , a second control unit 13 and a third control unit 14 .

[0033] The power strip 40 is connected to the AC power source and the circuit breaker 11 and is used for AC power wiring. The AC power is the high-voltage power source required by the driver, including 220V three-phase AC power and 380V three-phase AC power. The first control unit 12 is connected to the first phase AC power (380V) through the circuit breaker 11. The circuit breaker 11 is used to control the on / off between the first control unit 12 and the first phase AC power. The first control unit 12 is connected to the corresponding power interface L1 on the driver A. The first control unit 12 is used to control the on / off between the power interface L1 of the driver A and the circuit breaker 11 based on its own on / off control.

[0034] The second control unit 13 is connected to the second-phase AC power (380V) and the third-phase AC power (380V) via the circuit breaker 11. The circuit breaker 11 is used to control the connection and disconnection between the second control unit 13 and the second-phase AC power. The second control unit 13 is connected to the corresponding power interfaces L2 and L3 on the driver A. The second control unit 13 controls the connection and disconnection between the power interfaces L2 and L3 of the driver A and the circuit breaker 11 based on the second control unit 13's own connection and disconnection.

[0035] The third control unit 14 is connected to the AC power supply (220V) via the circuit breaker 11. The circuit breaker 11 is used to control the connection between the third control unit 14 and the AC power supply. The third control unit 14 is connected to the control power interface of the driver A. The third control unit 14 is used to control the connection between the control power interface of the driver A and the circuit breaker 11 based on the third control unit 14's own connection.

[0036] The switching power supply 30 is connected to the AC power and the control module 20 . The switching power supply 30 is used to convert the AC power into a power supply voltage and transmit the power supply voltage to the control module 20 .

[0037] In one embodiment, the switching power supply 30 is connected to 220V AC power and converts the 220V AC power into 24V low voltage power. In other embodiments, the switching power supply 30 can also convert AC power of other amplitudes into other required power supply voltages.

[0038] The control module 20 is connected to the first control unit 12, the second control unit 13, the third control unit 14 and the power supply voltage. The control module 20 is used to control the on and off between the first control unit 12, the second control unit 13, the third control unit 14 and the power supply voltage to control the opening and closing of the first control unit 12, the second control unit 13, the third control unit 14.

[0039] like Figure 1 As shown, the control module 20 includes a controller 21 and a relay 22 connected to the controller 21 , a display module 23 and an input module 24 .

[0040] The controller 21 is used to generate a control signal, and the controller 21 is preferably a PLC controller 21 .

[0041] In one embodiment, controller 21 is also connected to driver A and the motor. Controller 21 generates driver control signals to configure driver A's operating parameters and receives feedback signals from the motor, forming a drive loop. Controller 21 is also configured to transmit data such as driver A's operating parameters and motor operating status parameters to display module 23 for easy access by personnel to driver A and motor operating information and to determine whether driver A is functioning properly.

[0042] The relay 22 is connected to the first control unit 12 , the second control unit 13 , the third control unit 14 and the switching power supply 30 , and controls the connection and disconnection between the first control unit 12 , the second control unit 13 , the third control unit 14 and the power supply voltage based on the control signal.

[0043] Specifically, the power input terminal of the relay 22 is connected to the switching power supply 30 to receive the power supply voltage, and the contacts of the relay 22 are respectively connected to the first control unit 12, the second control unit 13, and the third control unit 14. The relay 22 is preferably IOE-REALY-PW01, and the controller 21 and the relay 22 communicate using EtherCAT.

[0044] In one embodiment, the relay 22 is also used to transmit the power supply voltage to the power supply interface of the controller 21. In other embodiments, the power supply voltage can also be directly transmitted to the controller 21 through the switching power supply 30 to power the controller 21.

[0045] In one embodiment, the input module 24 includes an emergency stop button, a reset button, a start button, and a test button (not shown), and the controller 21 generates a control signal based on the status of each button of the input module 24 .

[0046] The first control unit 12 includes a first contactor, which includes a first coil and a first switch (not shown). The first coil is connected to the switching power supply 30 through the relay 22. The first switch is used to control the on / off between the power interface L1 of the driver A and the circuit breaker 11.

[0047] Specifically, the first coil is connected to the corresponding contact of the relay 22, and both ends of the first switch are respectively connected to the power interface L1 of the driver A and the port of the circuit breaker 11 outputting the first phase AC power (380V).

[0048] The second control unit 13 includes a second contactor, which includes two second coils and two second switches (not shown). The second coil is connected to the switching power supply 30 through the relay 22. The two second switches are used to control the on and off between the power interface L2 and the power interface L3 of the driver A and the circuit breaker 11.

[0049] Specifically, the two second coils are respectively connected to the corresponding contacts of the relay 22, the two ends of one second switch are respectively connected to the power interface L2 of the driver A and the port for outputting the second phase AC power (380V) of the circuit breaker 11, and the two ends of the other second switch are respectively connected to the power interface L3 of the driver A and the port for outputting the third phase AC power (380V) of the circuit breaker 11.

[0050] The third control unit 14 includes a third contactor, which includes a third coil and a third switch (not shown). The third coil is connected to the switching power supply 30 through the relay 22. The third switch is used to control the on / off between the control power interface of the driver A and the AC power.

[0051] Specifically, the third coil is connected to the corresponding contact of the relay 22, and the two ends of the third switch are respectively connected to the control power interface of the driver A and the port of the circuit breaker 11 outputting 220V AC power.

[0052] In one embodiment, the third switch can be connected to a port of the circuit breaker 11 that outputs 220V AC power of any phase according to the driver's requirements.

[0053] Preferably, the circuit breaker 11 is an air switch.

[0054] During the test, the switching power supply 30 is first turned on and the emergency stop button is pressed. The switching power supply 30 converts the AC power into the power supply voltage, and the relay 22 and controller 21 are powered on and started. After the relay 22 and controller 21 are started, the circuit breaker 11 is turned on, connecting the first, second, and third contactors to the AC power. The model of the driver A to be tested is then selected on the display module 23. The controller 21 generates a control signal based on the driver model, which in turn controls the relay 22 to close the contact connected to the third coil of the third contactor, energizing the third coil. This closes the third switch, energizing the control power interface of driver A, and starting driver A.

[0055] Next, the driver ID is set on driver A, ensuring that the driver A's own model, driver ID, and the model selected by display module 23 are consistent. Communication between driver A and controller 21 is established, and driver A parameters can be configured. The emergency stop button is then released and the reset button is pressed. Based on the current button state, controller 21 again issues a control signal, controlling relay 22 to close the contacts connecting the first and second coils, energizing the first and second coils. The first and second switches are closed, and power interfaces L1, L2, and L3 of driver A are all energized, completing the three-phase power supply.

[0056] Next, press the start button, and the controller 21 starts the written NC (digital control) program to make the motor rotate. At this time, the staff can judge whether the driver can drive the motor normally according to the operating status of the motor. After the motor rotation is completed, press the test button again, and the controller 21 generates a control signal to control the relay 22 to disconnect the contact connected to the first coil, the power interface L1 of the driver A is powered off, and the driver A reports an error. Then, press the reset button, the controller 21 controls the relay 22 to close the contact connected to the first coil again, the power interface L1 of the driver A is powered on again, and the error report of the driver A disappears, which means that the phase loss detection function of the driver A is fault-free.

[0057] Finally, press the emergency stop button to turn off the power supply 30 and complete the test.

[0058] The driver A testing system in this solution automatically tests driver A. The control power interface and AC power connection of driver A are controlled by controller 21, eliminating the need for manual power-on and power-off operations, and eliminating the need to plug or unplug the power cord during testing. In an emergency, the circuit breaker 11 can be pressed to forcibly disconnect the power, providing increased safety and reliability.

[0059] In other embodiments, each test module 10 can connect the first control unit 12, the second control unit 13, and the third control unit 14 to AC power supplies of different amplitudes via the circuit breaker 11, based on the power supply voltage and control power supply voltage requirements of the corresponding driver. Because different types of drivers require different main power supply voltages and control power supply voltages, by providing multiple test modules 10, each test module 10 can be connected to AC power of different amplitudes based on the driver's power supply requirements. This allows a single test system to meet the testing requirements of different driver models and be compatible with testing of multiple drivers.

[0060] Example 2

[0061] like Figure 2 As shown, the difference between the driver test system in this embodiment and that in embodiment 1 is that the third control unit 14 is not provided in the test module 10, and the relay 22 is connected to the control power interface of the driver A, and the relay 22 is also used to control the on / off between the control power interface of the driver and the power supply voltage.

[0062] In this embodiment, the control power supply voltage required by driver A is the power supply voltage (24V). By directly connecting relay 22 to the control power interface of driver A, a contactor can be eliminated. During the test process, after relay 22 and controller 21 are activated, the model of driver A to be tested is selected on the interface of display module 23. Controller 21 generates a control signal based on the driver model, which in turn controls relay 22 to close the contacts connected to the control power interface of driver A, energizing the control power interface of driver A and starting driver A.

[0063] In other embodiments, the third control unit 14 in one or more test modules can be removed according to the actual needs of the driver, and connected to the control power interface of the corresponding driver through the relay 22 to control the on / off between the control power interface of the driver and the power supply voltage.

[0064] The other structures and testing processes of the driver testing system in this embodiment are the same as those in Example 1 and are not described in detail here.

[0065] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0066] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A drive testing system, characterized in that: It includes a test module and a control module, wherein the test module includes a circuit breaker, a first control unit and a second control unit; The first control unit is connected to the first phase AC power via a circuit breaker, and the circuit breaker is used to control the on / off between the first control unit and the first phase AC power. The first control unit is connected to the corresponding power interface on the driver, and the first control unit is used to control the on / off between the power interface of the driver and the circuit breaker based on its own on / off. The second control unit is connected to the second-phase AC power and the third-phase AC power via a circuit breaker, and the circuit breaker is used to control the on / off between the second control unit and the second-phase AC power and the third-phase AC power. The second control unit is connected to two corresponding power interfaces on the driver, and the second control unit is used to control the on / off between the two power interfaces of the driver and the circuit breaker based on its own on / off. The control module is connected to the first control unit, the second control unit and the power supply voltage, and is used to control the on and off between the first control unit, the second control unit and the power supply voltage to control the opening and closing of the first control unit and the second control unit.

2. The drive testing system according to claim 1, wherein: The test module further includes a third control unit, the third control unit being connected to the AC power supply via a circuit breaker, the circuit breaker being used to control the on / off connection between the third control unit and the AC power supply, the third control unit being connected to the control power interface of the driver, and the third control unit being used to control the on / off connection between the control power interface of the driver and the circuit breaker based on its own on / off switching; The third control unit is connected to the control module, and the control module is further used to control the connection and disconnection between the third control unit and the power supply voltage to control the opening and closing of the third control unit.

3. The drive testing system according to claim 1, wherein: The control module includes a connected controller and a relay, the controller is used to generate a control signal, the relay is connected to the first control unit, the second control unit and the power supply voltage, and the relay controls the on and off between the first control unit, the second control unit and the power supply voltage based on the control signal.

4. The drive testing system according to claim 2, wherein: The control module includes a connected controller and a relay, the controller is used to generate a control signal, the relay is connected to the first control unit, the second control unit, the third control unit and the power supply voltage, and the relay controls the connection and disconnection between the first control unit, the second control unit and the third control unit and the power supply voltage based on the control signal.

5. The drive testing system according to claim 3 or 4, characterized in that: The control module further includes a display module and / or an input module connected to the controller.

6. The drive testing system according to claim 3, wherein: The relay is connected to the control power interface of the driver, and the relay is also used to control the connection and disconnection between the control power interface of the driver and the power supply voltage.

7. The drive testing system according to claim 1, wherein: The test system further includes a switching power supply connected to the AC power supply and the control module. The switching power supply is used to convert the AC power into a power supply voltage and transmit the voltage to the control module.

8. The drive testing system according to claim 1, wherein: The first control unit includes a first contactor, the first contactor includes a first coil and a first switch, the first coil is connected to the control module, and the first switch is used to control the on / off between the power interface of the driver and the circuit breaker; and / or The second control unit includes a second contactor, which includes two second coils and two second switches. The second coils are both connected to the control module, and the two second switches are respectively used to control the on and off between the two power interfaces of the driver and the circuit breaker.

9. The drive testing system according to claim 2, wherein: The third control unit includes a third contactor, and the third contactor includes a third coil and a third switch. The third coil is connected to the control module, and the third switch is used to control the on / off between the control power interface of the driver and the circuit breaker.

10. The drive testing system according to claim 1, wherein: There are multiple test modules.

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