I believe many people who repair the inverter found that some of the inverter template will often burn out, usually we will replace the new module, and did not take into account the module has nothing to do with the drive burn. Therefore, maintenance should pay more attention to the drive circuit more aging parts. The following parts of the inverter is easy to introduce aging.
resistance
Resistance, material obstruction of the current is called the resistance of the material. Small resistance called electrical conductors, referred to as the conductor. Large resistance material called electrical insulator, referred to as the insulator. Resistance of the measuring capacitor, multimeter pointer will swing an angle, the greater the capacity of this angle the greater the second measurement to discharge the capacitor
Insulating paint
Insulating paint is polymer based, based on certain conditions can be cured into an insulating film or insulation of the overall insulation material is a kind of paint in the special paint. Radiator aluminum also have to dust, cooling fan is broken or a sound on the new; filter capacitor capacity to reduce 20% also change (usually not more than 8 years); all the main circuit connecting screws and then tighten. About disassembly chip integration: Some people disassemble the chip assembly often due to the temperature of the soldering iron is too high to make it damaged or performance degradation, before the demolition block can be posted on the block affixed to a small piece of water or sprinkle fine Paper for cooling, the effect is good!
Regulator
Zener is also a kind of crystal diode, it is the use of PN junction breakdown region has a stable voltage characteristics to work. Regulators in the regulator equipment and some electronic circuits have been widely used. We refer to this type of diode as a regulator to distinguish the diodes used in rectification, detection, and other unidirectional conduction. Ordinary electrician is more difficult to detect, can all be the new one is the best! Maintenance of the inverter but also for its overall care: the dust on the circuit board to use fine cleaning, drying and then spray insulation paint
Optocoupler
The full name of optocoupler optocoupler, also known as optical isolator, referred to as optocoupler. It is good for input and output electrical signals isolation, so it is widely used in various circuits. It has now become one of the most diverse and versatile optoelectronic devices. About optocoupler-driven circuit features: Because this circuit with a feedback detection circuit, that is, respectively, from the output of three-phase (Eu, Ev, Ew) to retrieve the signal and the drive signal to be compared when the inverter output is detected abnormal , Then send a high level signal to the motherboard through an optocoupler, the drive immediately cut off the drive signal and display "overcurrent" or "IGBT short circuit" failure, the protection is quite fast, inverter with this circuit is not easy to burn the module , But the problem is when the drive components of the inverter instability, aging and other issues affecting the work of the drive.
High speed door
Hongfa fast shutter doors by the Division we learn from foreign advanced technology and equipment , and to draw on the advantages of similar products in domestic self-developed high-tech products , with insulation , insects, wind , dust, noise, anti-odor, lighting and many other features , the high speed door can be widely used in food , chemical , textile , refrigeration , electronics , printing , assembly , precision machinery , logistics . warehousing and other places , the high speed rolling shutter door Can be extremely satisfying frequent high-performance logistics and clean place with a variety of needs and saving energy , increasing air-conditioning effect , fast closing , improve operational efficiency and create a better work environment
Material Selection:
1. Frame: 2MM thicknesses cold-roll Stainless steel.
2. Motor: Germany SEW brake motor (outer), power 0.75KW, power supply 220V.
3. Control system: Imported Japan Mitsubishi converter and PLC to control of electric box (150%1HZ)
4. Opening & closing speed: 0.6-1.5m/s (adjustable).
5. Safety Device: Korea Photocell Sensor, emergency stopping reaction when sensing obstacles.
6. Curtain: France high-density polyester fiber and the surface coating processing, thickness 0.8MM, variety colors can be chose: Red, yellow, blue, green, orange, gray, white, transparent, etc. Tensile strength: 4000/3500N/5cm, tear strength 600/600N. Fire-proofing level: German standard DIN75200 Usage temperature: -30 ° C +70 ° C.
7. Wind resistant: The Aluminium alloy Reinforce Girder to increase wind resistant effect.
8. Curtain replacement function: Aluminium alloy Reinforce Girder is loaded between 2 pieces Curtain, can be replaced easily if any curtain broken, save your cost.
9. Transparent window: 1.2MM thickness transparent PVC window, size and location is up to your request, more safer.
10. Seal: Seal brush are Installed inside the guides, and the special bottom design, to fit any uneven ground.
11. Cotrolling way: Push button + radar sensor, very convenient.
12. Limiting Switch: Mechanical limiting switch, easily and exactly.
13. Emergency STOP: With emergency stop button on control panel, can stop easily by
Hand once disconnect or accident
14 Fault recovery function: All Hongfa's production is with fault recovery function, system will self-recovery after power cut off.
15. Delivery time: About 7 business days with contract and deposit confirmed.
16. Pyament item: 50% before production, and the other 50% before shipment.
17. Warranty Details: We provide 12 months warranty for all doors and accessories (except man-made disasters, Irresistible natural disasters, ect^).
We have many professional engineers with rich experience, qualified products, perfect service system, and good cooperation relationship with many famous companies.
We have the best solution for you, and we provide all the support you need to achieve optimum results, or value, or both, from whatever products you buy.
We provide 12 month warranty for all product and accessories. And custom made door size/color/material.
PVC High Speed Rolling Door, car wash doors, PVC high speed garage doors, high speed fabric garage doors, fast roll up garage doors
SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfahsrd.com