CN218938403U - DC110V control power cabinet monitoring module test bed - Google Patents

Abstract

The utility model belongs to the technical field of locomotive monitoring equipment, and discloses a DC110V control power supply cabinet monitoring module test bed. The test bed provides a man-machine interaction interface for the whole test system through the self-programming upper computer software of the industrial integrated machine, and is connected with a communication module through various communication interfaces to control equipment such as a first direct current programmable power supply, a second direct current programmable power supply, an alternating current programmable power supply, a 3U control box, a load test unit and the like. The 3U control box is responsible for controlling and generating various high-precision signal sources, and provides various analog signals for normal operation and detection of output functions for the locomotive power supply cabinet monitoring module. The test bed controls the simulation monitoring module to input and output various signals through the industrial integrated machine, comprehensively detects the performance of the monitoring module, can meet the requirements of production debugging, function detection, fault investigation and maintenance and the like, and can greatly improve the production and maintenance efficiency.

Description

DC110V control power cabinet monitoring module test bed

Technical Field

The utility model belongs to the technical field of locomotive monitoring equipment, and particularly relates to a DC110V control power supply cabinet monitoring module test bed.

Background

The monitoring module device of the locomotive DC110V control power cabinet is simply called a monitoring module. The system is a device for monitoring and managing a locomotive storage battery and a whole vehicle DC110V control power supply, and is also important electrical equipment for locomotive operation.

The locomotive storage battery power cabinet monitoring module used at the present stage is a portable test bench, but the portable test bench mainly focuses on the whole function of the monitoring module, and the signal simulation and measurement precision cannot be met. Therefore, when the circuit board of the monitoring module enclosed in the control power cabinet is maintained by the using unit, the maintenance can only be carried out by observing the running state of the whole machine of the control power cabinet. If the maintenance of the independent monitoring module and other accessories is required, the maintenance can only be completed by externally adding a plurality of instrument combinations, the operation is complex, and the requirement on the professional knowledge of personnel is high. It is therefore necessary to develop a specialized test bench.

Disclosure of Invention

In order to solve the problems of the conventional portable test bench for locomotive monitoring modules in the background art, a test system based on an autonomous software control computer and various devices is developed and designed, data transmission among the devices is realized in various communication modes, and accurate control among the devices is realized, namely, various signals are input and output outside the analog monitoring module by controlling various devices through an upper computer, so that the performance of the monitoring module is comprehensively detected, the requirements of production debugging, function detection, fault detection, maintenance and the like can be met, and the production and maintenance efficiency can be greatly improved. Therefore, a DC110V control power cabinet monitoring module test bed is provided. The test board is mainly a comprehensive test platform for testing the performance of a control power cabinet monitoring module and a monitoring circuit board of a Harmonious freight electric locomotive.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the DC110V control power cabinet monitoring module test bed comprises a test bed body and a back door which is arranged on the back surface of the test bed body and is used for opening and closing, wherein a first direct current programmable power supply, a second direct current programmable power supply, an input voltmeter, a control power supply meter, an electric energy meter, a key switch, a scram switch, an industrial integrated machine and a power indicator lamp are respectively arranged on a panel of the test bed body, external alternating current 220V passes through a power plug wiring, a leakage protector and is formed by the key switch, the scram switch, the power indicator lamp and an alternating current contactor to form an opening and protection circuit for supplying power to the whole system, the power plug wiring and the leakage protector are respectively arranged on one side of the test bed body, the alternating current contactor and a 3U control box are respectively arranged in the test bed body, the 3U control box is connected with the industrial integrated machine through a USB-to-CAN adapter, the first direct current programmable power supply and the second direct current programmable power supply are respectively connected with the industrial integrated machine through a self-contained RS232 communication interface, a load test unit and an alternating current controller are respectively arranged on an inner bottom plate of the test bed body, the alternating current controller is respectively connected with the four-phase control board, and the load controller is connected with the four-to the industrial integrated machine through an alternating current controller through the corresponding RS 485;

in the DC110V control power cabinet monitoring module test bed, the industrial integrated machine has the following functions: (1) The control device is used for controlling the output of a first direct current programmable power supply and providing a DC110V control power supply for tested equipment and a system; (2) The device is used for controlling the output of a second direct current programmable power supply and providing an adjustable analog AC/DC module output voltage sampling signal for tested equipment; (3) The device is used for controlling the output of an alternating current programmable power supply and providing an adjustable analog alternating current input voltage sampling signal for tested equipment; (4) The device is used for controlling the output or sampling of the 3U control box plug-in, providing various signal sources for the tested equipment, adjusting the driving voltage of each load in the load test unit and realizing the load capacity detection of four-way fault signal channels of the tested equipment.

As further explanation and limitation of the above technical scheme, the inside of the 3U control box is composed of ten circuit boards, wherein the first board is a voltage acquisition board, eight paths of 0-150V voltage acquisition are mainly provided, four paths of fault signal acquisition are mainly provided for equipment, and four paths of channels are reserved; the second board number is a 110V digital output board and is provided with eight paths of channels, and eight paths of DC110V digital output signals are mainly output for providing an analog locomotive state for the test bench; the third board and the fourth board are voltage output boards for respectively providing eight paths of 0-5V signals, the third board provides four paths of voltage driving signals for a load, and four paths are reserved; the fourth board provides five analog module current signals for the test equipment, and three paths are reserved; eight paths of relay node outputs are respectively provided by a plate number five and a plate number six, a resistance signal with the precision of 0.01% of a simulation two paths of pt100 temperature sensors (five steps of 0 ℃, 5 ℃, 15 ℃, 25 ℃, 35 ℃ and 45 ℃) is provided for test equipment, four paths of load drive output channels and two paths of DCDC fault signal output channels; the seventh board is an analog acquisition board, and eight paths of 0-15V sensor voltage acquisition signals are provided for the test equipment; the plate number eight is a current output plate, eight paths of DC0-100mA current signals with the accuracy of 0.5% are provided for test equipment, three paths of analog current sensor signals are used, and five paths of signals are reserved; the board number nine and the board number ten are power boards, and mainly provide the 3U control box with working voltages required by all circuit boards and working voltages required by external equipment.

As a further supplementary explanation of the above technical scheme, an operation table is arranged on the front surface of the test bed body, a drawer is arranged on the operation table, a keyboard connected with the industrial integrated machine is arranged in the drawer, and a mouse connected with the industrial integrated machine is also arranged on the operation table.

As a further supplementary explanation of the above technical scheme, the lower ends of the front and rear faces of the test stand body are respectively provided with a heat dissipation pore plate, which is convenient for heat dissipation during working.

As a further supplementary explanation of the above technical scheme, two heat dissipation fans connected in series are installed on the inner bottom plate of the test bed body, and the two heat dissipation fans are connected with the load test unit and are respectively located in front of and behind the load test unit.

Compared with the existing portable test bench at the present stage, the DC110V control power cabinet monitoring module test bench disclosed by the utility model has the following advantages:

1. the DC110V control power cabinet monitoring module test bed designed by the utility model adopts an industrial integrated machine, so that the reliability of hardware is ensured, and the test bed system software of the industrial integrated machine adopts a safe and reliable Linux system platform, adopts standard C language development and adopts a modularized mode for design. Meanwhile, the test board reserves a plurality of signal channels, is compatible with all types of monitoring module tests, and can realize compatible tests only by revising in software by distinguishing each type of monitoring unit. Therefore, the test bench can meet the personalized customization requirement of the customer only by modifying the database configuration software according to the requirement of the customer.

2. The industrial all-in-one machine and all devices in the DC110V control power cabinet monitoring module test bed are communicated through 485 communication, CAN communication and 232 communication, so that the real-time performance of data processing is ensured.

3. The DC110V control power cabinet monitoring module test bed designed by the utility model has good operation interface and man-machine data exchange capability, visual graphical interface, simple operation, capability of testing the overall system of the tested equipment without adding any instrument and equipment, and great improvement of working efficiency. The test interface is simple and easy to understand, and has lower requirement on professional knowledge of testers.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a block diagram of the present utility model;

FIG. 3 is an enlarged view of a floor portion of the test station body of the present utility model;

FIG. 4 is a front view of the present utility model;

FIG. 5 is a block diagram of a circuit connection of the present utility model;

FIG. 6 is a schematic circuit diagram of the present utility model;

FIG. 7 is a signal topology diagram of a monitoring module of a HXD1 locomotive CT-JKM02 according to an embodiment of the present utility model;

fig. 8 is a signal topology diagram of a monitoring module of a HXD3D locomotive CT-JKM03 type in an embodiment of the present utility model;

fig. 9 is a topology diagram of a load test unit according to an embodiment of the present utility model.

In the figure: the test bench comprises a test bench body 1, an operation table 2, a drawer 3, a back door 4, a first direct current programmable power supply 5, a second direct current programmable power supply 6, an input voltmeter 7, a control power supply meter 8, an electric energy meter 9, a key switch 10, an emergency stop switch 11, an industrial integrated machine 12, a power indicator 13, a power plug wiring 14, a leakage protector 15, an alternating current contactor 16,3U control box 17, a load test unit 18, an alternating current programmable power supply 19, an aviation socket 20, an aviation connector 21, a disk 22, a mouse 23, a heat dissipation pore plate 24 and a heat dissipation fan 25.

Detailed Description

In order to further illustrate the technical scheme of the utility model, the utility model is further illustrated by the following examples.

As shown in fig. 1 to 9, a DC110V control power supply cabinet monitoring module test stand comprises a test stand body 1, an operation table 2 is arranged on the front surface of the test stand body 1, a drawer 3 is arranged on the operation table 2, an opening and closing back door 4 is arranged on the back surface of the test stand body 1, a first direct current program controlled power supply 5, a second direct current program controlled power supply 6, an input voltmeter 7, a control power supply meter 8, an electric energy meter 9, a key switch 10, an emergency stop switch 11, an industrial integrated machine 12 and a power indicator 13 are respectively arranged on a panel of the test stand body 1, an external alternating current 220V passes through a power plug wiring 14, a leakage protector 15 and is formed by the key switch 10, the emergency stop switch 11, the power indicator 13 and an alternating current contactor 16 to be supplied with power for the whole system, wherein the power plug wiring 14 and the leakage protector 15 are respectively arranged on one side of the test stand body 1, and an alternating current contactor 16 and a 3U control box 17 are respectively arranged inside the test stand body 1. A keyboard 22 connected with the industrial integrated machine 12 is arranged in the drawer 3, and a mouse 23 connected with the industrial integrated machine 12 is also arranged on the operation desk 2, wherein the keyboard 22 and the mouse 23 are used as input devices of the industrial integrated machine 12, so that a software interface is convenient to operate. The 3U control box 17 is connected with the industrial integrated machine 12 through a USB-to-CAN adapter, the first direct current programmable power supply 5 and the second direct current programmable power supply 6 are respectively connected with the industrial integrated machine 12 through self-contained RS232 communication interfaces, a load test unit 18 and an alternating current programmable power supply 19 are respectively installed on an inner bottom plate of the test bed body 1, heat dissipation pore plates 24 are respectively installed on lower ends of the front and rear surfaces of the test bed body 1, heat dissipation fans 25 which generate heat during operation are installed on the inner bottom plate of the test bed body 1, two heat dissipation fans 25 are connected with the load test unit 18 in series and are respectively located in front of and behind the load test unit 18, the load test unit 18 comprises four paths of load plates and is respectively electrically connected with the 3U control box 17, the alternating current programmable power supply 19 is connected with the industrial integrated machine 12 through an RS 232-to-RS 485 converter, five aviation sockets 20 connected with the 3U control box 17 are installed on a panel of the test bed body 1 and are respectively connected with the aviation sockets through aviation devices 21.

In operation of the DC110V control power cabinet monitoring module test stand, the industrial all-in-one machine 12 has the following functions: (1) The control power supply is used for controlling the output of the first direct current programmable power supply 5 and providing DC110V control power for tested equipment and a system; (2) The device is used for controlling the output of a second direct current programmable power supply 6 and providing an adjustable analog AC/DC module output voltage sampling signal for tested equipment; (3) The device is used for controlling the output of an alternating current programmable power supply 19 and providing an adjustable analog alternating current input voltage sampling signal for tested equipment; (4) The device is used for controlling the output or sampling of the 3U control box 17 plug-in, providing various signal sources for the tested device, and adjusting the driving voltage of each load in the load test unit 18 to realize the load capacity detection of four paths of fault signal channels of the tested device.

As the 3U control box in the above embodiment, the inside of the 3U control box 17 is assembled by ten circuit boards; the first board is a voltage acquisition board, mainly provides eight paths of 0-150V voltage acquisition, mainly provides four paths of fault signal acquisition for equipment, and reserves four paths of channels; the second board number is a 110V digital output board and is provided with eight paths of channels, and eight paths of DC110V digital output signals are mainly output for providing an analog locomotive state for the test bench; the third board and the fourth board are voltage output boards for respectively providing eight paths of 0-5V signals, the third board provides four paths of voltage driving signals for a load, and four paths are reserved; the fourth board provides five analog module current signals for the test equipment, and three paths are reserved; eight paths of relay node outputs are respectively provided by a plate number five and a plate number six, a resistance signal with the precision of 0.01% of a simulation two paths of pt100 temperature sensors (five steps of 0 ℃, 5 ℃, 15 ℃, 25 ℃, 35 ℃ and 45 ℃) is provided for test equipment, four paths of load drive output channels and two paths of DCDC fault signal output channels; the seventh board is an analog acquisition board, and eight paths of 0-15V sensor voltage acquisition signals are provided for the test equipment; the plate number eight is a current output plate, eight paths of DC0-100mA current signals with the accuracy of 0.5% are provided for test equipment, three paths of analog current sensor signals are used, and five paths of signals are reserved; the board No. nine and the board No. ten are power boards, and mainly provide the 3U control box 17 with the operating voltage required by each circuit board, and the operating voltage required by the external device.

In the above embodiment, the power-on protection circuit starts the test board system mainly through the permission key, and when the emergency stop button is pressed down in the test of the test board, the power system is disconnected to protect various devices of the test board, and the power supply state can be restored after the fault is checked and repaired.

The power supply display unit consists of an input voltmeter, a control power supply meter and an electric energy meter, and is mainly responsible for displaying the working voltage of the alternating current-direct current power supply system of the test board through the high-precision digital voltmeter and the electric energy meter.

The panel interface unit is reliably connected with the monitoring unit electrical connector mainly through the aviation connector.

After 220V external alternating current enters the test board through the plug, a starting and stopping circuit is formed by a key switch, an emergency stop switch and an alternating current contactor through the leakage protector. When the key switch and the scram switch meet the closing state simultaneously, the contactor coil is attracted, and after the main contact is attracted, alternating current 220V is distributed to the programmable power source 1, the programmable power source 2, the alternating current programmable power source, the 3U control box, the industrial integrated machine, the load unit, various display voltmeters and the like for supplying power. The programmable power supply 1 and the programmable power supply 2 are connected with the industrial integrated machine through a self-contained RS232 communication interface. The alternating current programmable power supply is connected with the industrial integrated machine through an RS 232-RS 485 converter, and the 3U control box is connected with the industrial integrated machine through a USB-CAN adapter. The industrial integrated machine controls various power supplies and 3U control box output to meet the test requirements of tested equipment.

The operation description is as follows:

the software in the industrial integrated machine adopts a safe and reliable Linux system platform, adopts standard C language development and adopts a modularized mode for design, the platform consists of an embedded software main body and database configuration software, and an upper computer controls input power supply, output load and a 3U control box board card through 485 communication, CAN communication and 232 communication to realize the simulation of external signals of a monitoring module and a monitoring bottom plate. And the channel function detection, fault function detection and state display of the monitoring module are realized by adjusting the sizes of various signals through software.

The monitoring module is connected with the test bench according to the following relation, so that the reliable and looseness-free plug connection of the connector is ensured.

(1) Test cable HXD1-CNX1 plug-tested monitoring module socket;

(2) test cable XS1 plug-test bench XS1 socket;

(3) test cable XS2 plug-test bench XS2 socket;

(4) test cable XS5 plug-test bench XS5 socket.

1. And (5) power-on inspection:

and (3) correctly connecting a power supply plug of the test bench, closing the left side of the test bench, opening the test bench, rotating a power key to an opening position, and starting the test bench. Clicking on the start buttons of the software interface '440V program control, program control power supply 1 and program control power supply 2', setting the output voltage to be 110V, and normally lighting the power-on indicator lamp of the front panel of the monitored panel to be monitored and flashing the running indicator lamp.

2. Performance test:

1. zero calibration

Clicking a key at the upper left corner of the software interface for monitoring and calibrating, entering an analog quantity calibration interface, clicking a left minimum value key in sequence, and completing zero calibration of the monitoring module by the test bench through giving the minimum value of each sampling channel.

2. High point calibration

And clicking a right row maximum value key in sequence on a software interface of the test bench, and setting the maximum value of each sampling channel through the test bench to finish the high-point calibration of the monitoring module.

3. Current sensor power supply test

The test bench detects that +15V/-15V supplied by 3 paths of sensors through a sampling channel automatically displays +15V+/-0.15V and +15V+/-0.15V respectively, and the test result is normal.

4. Total input voltage sampling test

The software interface sets the voltage at 440V +/-4.4V in the AC440V power supply, clicks a button for closing the AC440 input contactor, checks the input voltage at 440V +/-4.4V in the monitoring module device state interface, and the test result is normal.

5. Output voltage sampling test

And setting ACDC output to be 110V on a software interface of the test bench, checking the output voltage to display 110.0V plus or minus 1.1V in a state interface of a monitoring module device, and ensuring a normal test result.

6. Output current sampling test

Setting 150.0A of total output current on a software interface of the test bench, checking 150 A+/-1.5A of output current display voltage in a state interface of a monitoring module device, and ensuring a normal test result.

7. Battery current sampling test

And setting the total output current to be 30.0A on a software interface of the test bench, checking the battery current display voltage to be 30 A+/-1.5A in a device state interface of the monitoring module, and ensuring a normal test result.

8. Battery temperature sampling test

Clicking a temperature simulation first path of temperature keys in sequence: "0 ℃," 5 ℃, "15 ℃," 25 ℃, "35 ℃," 45 ℃, "the battery pack 1 in the view monitoring module device state interface shows the temperature respectively as follows: "0 ℃ + -1 ℃," 5 ℃ + -1 ℃, "15 ℃ + -1 ℃," 25 ℃ + -1 ℃, "35 ℃ + -1 ℃," 45 ℃ + -1 ℃, "and the test result is normal.

Clicking a temperature simulation second path temperature key in sequence: "0 ℃," 5 ℃, "15 ℃," 25 ℃, "35 ℃," 45 ℃, "the battery pack 2 in the view monitoring module device state interface shows the temperature respectively as: "0 ℃ + -1 ℃," 5 ℃ + -1 ℃, "15 ℃ + -1 ℃," 25 ℃ + -1 ℃, "35 ℃ + -1 ℃," 45 ℃ + -1 ℃, "and the test result is normal.

9. Module output current sampling test

And sequentially outputting current settings 30A at software interfaces ACDC1, ACDC2, ACDC3, ACDC4 and ACDC5, checking output current items of ACDC1, ACDC2, ACDC3, ACDC4 and ACDC5 on a monitoring module, and displaying current 30.0 A+/-0.6A and normal test results.

10. DCDC module fault test

Clicking a DCDC1 fault signal key and a DCDC2 fault signal key on a software interface of the test bench respectively, checking a flashing red word "DCDC1 fault" and a flashing red word "DCDC2 fault" at the lower part of the monitoring module, and after waiting for 2 minutes, outputting the DCDC fault signal by the monitoring module, wherein a lamp is changed from gray to red after the DCDC fault node on the test bench is tested. The test results were normal.

11. ACDC module fault test

And modifying the output current of any ACDC module to be 0A on a software interface of the test board, checking the red character "ACDC no output" of the module corresponding to the flicker of the lower part of the monitoring module, and changing the lamp from gray to red after the test of the ACDC fault node on the test board after waiting for 2 minutes. The test results were normal.

12. Emergency operation test

Clicking an emergency operation button on a software interface of the test board, and changing a red emergency operation word pattern into a white normal operation word pattern in a status bar on a screen of the monitoring module. The test results were normal.

13. Output over-current test

The test bench software interface sets the total output current set value to 160A, and after waiting for 2 minutes, the white overcurrent word in the status bar turns red. And the test board outputs the test result that the lamp changes from gray to red after the overcurrent node is tested.

14. Charge and discharge test

The charging current set value is modified to be-2A on the test bench, and the white 'charging' character in the status bar is changed into the white 'discharging' character. The test results were normal.

While the principal features and advantages of the present utility model have been shown and described, it will be apparent to those skilled in the art that the detailed description of the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics of the utility model, and the inventive concept and design concept of the utility model shall be equally included in the scope of the utility model disclosed in the appended claims. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (5)

1. The utility model provides a DC110V control power cabinet monitoring module test bench, is provided with back door (4) that open and shut, its characterized in that including test bench body (1) and on its back: a first direct current programmable power supply (5), a second direct current programmable power supply (6), an input voltage meter (7), a control power supply meter (8), an electric energy meter (9), a key switch (10), a scram switch (11), an industrial integrated machine (12) and a power indicator lamp (13) are respectively arranged on a panel of the test bed body (1), external alternating current 220V passes through a power plug wiring (14) and a leakage protector (15) and is powered by the whole system by the key switch (10), the scram switch (11), the power indicator lamp (13) and an alternating current contactor (16), wherein the power plug wiring (14) and the leakage protector (15) are respectively arranged on one side of the test bed body (1), the alternating current contactor (16) and a 3U control box (17) are respectively arranged in the test bed body (1), the 3U control box (17) is connected with the industrial integrated machine (12) through a USB (12) through a CAN adapter, the first direct current programmable power supply (5) and the second direct current programmable power supply (6) are respectively connected with the load testing unit (18) through a self-contained interface (RS) on the test bed body (12), the test bench is electrically connected with a 3U control box (17) respectively, the alternating current programmable power supply (19) is connected with an industrial integrated machine (12) through an RS 232-to-RS 485 converter, five aviation sockets (20) connected with the 3U control box (17) are installed on a panel of the test bench body (1), and the aviation sockets are externally connected with tested equipment through matched aviation connectors (21) respectively;

the industrial integrated machine (12) is used for controlling the output of a first direct current programmable power supply (5) and providing a DC110V control power supply for tested equipment and a system;

the industrial integrated machine (12) is used for controlling the output of a second direct current programmable power supply (6) and providing an adjustable analog AC/DC module output voltage sampling signal for tested equipment;

the industrial integrated machine (12) is used for controlling the output of an alternating current programmable power supply (19) and providing an adjustable analog alternating current input voltage sampling signal for tested equipment;

the industrial integrated machine (12) is used for controlling the output or sampling of a plug-in unit of the 3U control box (17), providing various signal sources for tested equipment, and adjusting the driving voltage of each load in the load test unit (18) so as to realize the load capacity detection of four paths of fault signal channels of the tested equipment.

2. The DC110V control power cabinet monitoring module test stand of claim 1, wherein: the inside of the 3U control box (17) is composed of ten circuit boards;

the first board is a voltage acquisition board, mainly provides eight paths of 0-150V voltage acquisition, mainly provides four paths of fault signal acquisition for equipment, and reserves four paths of channels;

the second board number is a 110V digital output board and is provided with eight paths of channels, and eight paths of DC110V digital output signals are mainly output for providing an analog locomotive state for the test bench;

the third board and the fourth board are voltage output boards for respectively providing eight paths of 0-5V signals, the third board provides four paths of voltage driving signals for a load, four paths of voltage driving signals are reserved, the fourth board provides five analog module current signals for test equipment, and three paths of voltage driving signals are reserved;

eight paths of relay node outputs are provided for the board number five and the board number six respectively, a resistance signal with the accuracy of 0.01% of the analog two paths of pt100 temperature sensors is provided for the test equipment, four paths of load drive output channels and two paths of DCDC fault signal output channels;

the seventh board is an analog acquisition board, and eight paths of 0-15V sensor voltage acquisition signals are provided for the test equipment;

the plate number eight is a current output plate, eight paths of DC0-100mA current signals with the accuracy of 0.5% are provided for test equipment, three paths of analog current sensor signals are used, and five paths of signals are reserved;

the board number nine and the board number ten are power boards, and mainly provide the 3U control box (17) with working voltages required by all circuit boards and working voltages required by external equipment.

3. The DC110V control power cabinet monitoring module test stand of claim 1, wherein: an operation table (2) is arranged on the front surface of the test table body (1), a drawer (3) is arranged on the operation table (2), a keyboard (22) connected with the industrial integrated machine (12) is arranged in the drawer, and a mouse (23) connected with the industrial integrated machine (12) is also arranged on the operation table (2).

4. A DC110V control power cabinet monitoring module test stand according to any one of claims 1 to 3, characterized in that: and the lower ends of the front and rear surfaces of the test bed body (1) are respectively provided with a heat dissipation pore plate (24), which is convenient for heat diffusion during working.

5. The DC110V control power cabinet monitoring module test stand of claim 4, wherein: two heat dissipation fans (25) connected in series are arranged on an inner bottom plate of the test bed body (1), and the two heat dissipation fans (25) are connected with the load test unit (18) and are respectively positioned in front of and behind the load test unit (18).

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