Testing device of Siemens 6SE70 frequency converter
By designing a testing device for the Siemens 6SE70 frequency converter, and utilizing DIP switches and a multi-functional pulse generator for real-time fault detection, the problem of time-consuming and costly traditional maintenance methods has been solved. This enables rapid and accurate fault diagnosis and repair, thereby reducing equipment maintenance costs.
Patent Information
- Application Number
- CN202520693893.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-14
AI Technical Summary
Troubleshooting Siemens 6SE70 frequency converters in steel rolling systems is difficult, and traditional repair methods are time-consuming, costly, and often lead to equipment failure.
Design a test device for a Siemens 6SE70 frequency converter, including a housing, control circuit, DIP switch, multi-functional pulse generator and LED display screen. It is connected to the frequency converter through an interface circuit to display the internal power status and module working status in real time and perform pulse testing.
It simplifies fault diagnosis, improves maintenance efficiency, reduces maintenance costs, and avoids the risk of damage caused by replacing the entire machine.
Smart Images
Figure CN223857325U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to frequency converter technical field, namely a testing device of siemens 6SE70 frequency converter. BACKGROUND
[0002] In prior art, siemens 6SE70 frequency converter is used in large quantities in rolling system, and because it is imported equipment, it is difficult to judge when fault occurs, and the traditional maintenance method is surface observation, searching whether there is burning and discharge trace, if there is no obvious appearance anomaly, only ordinary universal meter can be used to test frequency converter module according to principle, and other parts cannot be started, and generally, circuit board is replaced to complete, if frequency converter in online operation suddenly breaks down, it needs to replace complete machine to solve the problem, and a lot of time is consumed. CONTENT OF UTILITY MODEL
[0003] The utility model aims at the above insufficient and provides a testing device of siemens 6SE70 frequency converter.
[0004] The technical solution of the utility model is: a testing device of siemens 6SE70 frequency converter, including shell, four screens have on the shell, and control circuit has in it, the control circuit includes testing device interface circuit, testing device interface circuit one way is connected with code switch and multifunctional pulse generator, and testing device interface circuit other way is connected with decoding circuit and four LED display screens.
[0005] The four LED display screens are used to display main power state, CPU power state, inverter power state and analog power state respectively.
[0006] The utility model has the advantages of small size, light weight, simple and convenient operation, and is suitable for on-site use, so that the judgment of on-site fault has reliable data support, and the accurate position of fault is judged through screen display.
[0007] The embodiments of the utility model will be further described in detail below with reference to the drawings. DRAWINGS
[0008] Figure 1 It is circuit control principle diagram of the utility model. CONCRETE IMPLEMENTING METHOD
[0009] See Figure 1The utility model relates to a kind of testing device of siemens 6SE70 frequency converter, including shell, four screens on shell, specifically A display, B display, C display and D display.It has control circuit inside.The control circuit includes testing device interface circuit, testing device interface circuit one way is connected with dial switch and multifunctional pulse generator, testing device interface circuit another way is connected with decoding circuit and four LED display screen.The device is connected with siemens 6SE70 frequency converter, and through the screen in the device, the important parameters of siemens 6SE70 frequency converter can be displayed, the running state of frequency converter is directly understood, and it is fast, convenient and clear to find fault problem, such as online frequency converter, can be directly tested, can be directly judged what fault is, and pulse test can be made to IGBT test.
[0010] Dial switch: the function is used to start inverter test circuit and the selection of module needing test.
[0011] Multifunctional pulse generator: the function is to send adjustable frequency pulse signal, for IGBT module trigger.
[0012] Decoding circuit: the function is to convert the signal in frequency converter into analog signal.
[0013] Four screens: used to display main power state, CPU power state, inverter power state, analog power state.
[0014] Working principle: testing device is installed with the CUVC (frequency converter control mainboard) adapter plug of siemens frequency conversion, and testing device is inserted in CUVC interface of frequency converter when testing, and then detection can be started, there are four LED display screens on testing device, four important voltages in frequency converter, main power state, CPU power state, inverter power state and analog power state are directly displayed through decoding circuit, and multifunctional pulse generator is installed for testing pulse power part of frequency converter, 20KH pulse signal is sent to six IGBTs in frequency converter through dial switch selection, to test the working state of module, testing device works completely through CUVC interface of frequency converter, can test underlying data needed for frequency converter repair on line, improve repair efficiency, meanwhile, avoid the condition that CUVC board is damaged when using original machine CUVC board to test frequency converter, and the damage reason is internal voltage anomaly, therefore, the first item of testing device is to observe the numerical display of four screens, different fault positions are judged according to data, four values are normal, pulse output can be further tested, so that the repair detection of frequency converter is completed.
[0015] The above description is only the specific implementation of the utility model, and various examples do not limit the essential content of the utility model.
Claims
1. A testing device for a Siemens 6SE70 frequency converter, characterized in that It includes a shell, the shell has four screens, and has a control circuit in it, the control circuit includes a testing device interface circuit, the testing device interface circuit is connected with a code switch and a multifunctional pulse generator in one way, and is connected with a decoding circuit and four LED display screens in another way.
2. A test device for a Siemens 6SE70 frequency converter according to claim 1, characterized in that The four LED display screens are used for displaying the main power state, the CPU power state, the inverter power state and the analog power state respectively.