The VG-8-ATE frequency converter factory load test bench is a new type of multifunctional aging equipment designed based on user requirements and optimized according to actual conditions. The main body of the load bench adopts real water pump working conditions to ensure the stability, accuracy, and reliability of the load; Using an industrial control host to control the PLC solenoid valve to switch the water pump load through a serial port, verify whether various protection functions of the load are normal.

This experimental bench is suitable for load testing of frequency converter water pumps. Verify that the frequency converter has sleep protection, dry running protection, and qualified working current judgment under constant voltage load.

(1) The experimental platform is divided into 2 layers, each layer can hold 4 products with actual loading power ≤ 2500W for aging, a total of 8 products.

(2) The input wiring of the frequency converter adopts sockets; The output wiring of the frequency converter adopts dedicated sockets, pressure sensor wiring sockets, and the frequency converter is equipped with a cooling fan positioning fixture.

(3) The input adopts a three-phase four wire AC 380V system. Phase A supplies power to the product on the first floor; B phase supplies power to the products on the 2nd floor; The C-phase supplies power to the products on the 2nd floor.

(4) Total power of system load: 25KW.

(5) Real time monitoring of product related data (current value, product qualification, aging time, etc.) through factory software.

(6) Input current testing at each stage. During sleep protection, the current approaches zero, while during dry running protection, the current approaches zero. Under constant voltage load

The working current judgment is qualified, and the running time and working current of each test item can be set.

(7) Load loading range: phase current 0-20.00A.

(8) Each frequency converter takes a total of 60 minutes for various tasks.

(9) Each workstation requires scanning barcode input or generating barcode printing output

(10) Set manual and automatic testing modes for each workstation

(11) Unqualified sound and light alarm

(1) The car model is aesthetically pleasing and conforms to ergonomic design.

(2) The frame is movable, with 4 casters at the bottom, 2 universal wheels, and 2 fixed wheels.

(3) The product placement area of the vehicle body is paved with epoxy resin boards and insulation and electrical resistant rubber.

(4) The product placement area is completely isolated, with a total of 2 layers, each layer can hold 8 products.

(1) The aging car test power supply uses 2 inputs, with the first input supplying 1-4 products to be aged and the second input supplying 5-8 products to be aged. Both power supplies are protected by air switches.

(2) Time setting and control: total aging time, aging time for each layer, aging time for each product.

(3) Voltage range: 0-300V, current range: 0-10.00A

(4) Current accuracy: ± 5%

(5) The most advanced and reliable communication scheme and mode are adopted between loads.

(6) LED indicator light: Each group of products has an LED working status indicator.

(7) All loads are protected against sleep, dry running, over power, and over temperature.

(8) Using high-end main control chips for efficient and stable testing.

(9) Adopting RS232 communication design, reliable communication.

(10) Support independent setting of testing parameters for a single channel.

(11) The load power supply, communication, and tested power supply are all connected using connectors, which are quick to connect and disconnect.

(1) Install one switch power supply in total. DC24V 20A

(2) Technical data

Three phase power supply: 380V/50HZ

Standard rated input voltage 380V, 47-63HZ; Output voltage: 0-265V (customized), 47-63HZ

(1) Work interface,

(2) Data query, statistics, and quality analysis reports

(1) Function settings: Product model, working voltage/current for each product operating mode, upper and lower limit alarm values, aging time settings, acquisition time, corresponding channel number of the device.

(2) Collection and display function: Input AC current for each layer of testing power supply, display the values of each generated current, alarm indication, and real-time display of aging time..

(4) The system software can perform functional self checks on all channels, enabling rapid maintenance of the equipment.

(5) Up to 8 units of aging product data and information can be collected simultaneously

(1) Working power supply: mains 220V/50Hz, or 230V/60Hz

(2) System power consumption: less than 2000VA

(3) Overall indicators