Daily maintenance content of universal test machine frequency converter

For laboratory operators, it is necessary to be familiar with the basic working principles and functional characteristics of the frequency converter in a universal test machine, and they should also have certain common sense of electrician operation.

In the rightDaily maintenance of electronic universal test machine frequency converterBefore, it is necessary to ensure that the total power supply of the equipment is cut off; and then proceed after the inverter displays completely disappearing for 3-30 minutes (depending on the power of the inverter). First of all, you should pay attention to checking the power grid voltage, improving the surrounding environment of the inverter, motor and line, regularly clearing the internal dust of the inverter, and reducing the failure rate of the inverter to the limit by strengthening equipment management.

Due to the production characteristics of some companies, the corrosion gas concentration in each electrical mcc chamber is too high, resulting in corrosion damage to many electrical equipment (of course, including the frequency converter).

In order to solve the environmental problems related to the frequency converter of the above electronic universal test machine, an air conditioning system can be installed to improve environmental conditions with positive pressure fresh air. In order to reduce the corrosion of corrosive gases on components on the circuit board, it is also required that the universal tester inverter manufacturers perform anti-corrosion processing on the circuit board, and spray preservatives after repair, which effectively reduces the failure rate and improves the use efficiency.

While maintaining the electronic universal testing machine, carefully check the inverter, send power regularly, and operate the motor at a low frequency of 2hz for about 10 minutes to ensure that the inverter works normally.

1. Electronic universal testing machine index:

1. Implementation standard: HG2369-92GB/T17200-1997

2. Resolution accuracy: 0.1~2N

3. System accuracy: less than 0.5%

4. Display range: 0～99999.9N

5. Tensile speed range: 0～500mm/min (special requirements are specified separately)

6. The stroke of the movable clamp: 930mm

7. Power consumption: less than 15W (digital display meter) The power of the whole machine is ≤800W

8. Power supply voltage: ~220V±10% (The article is compiled and edited by http://www.hssdtest.com/)