Computer Refueling Machine Knowledge - Electrical Faults and Treatments

Electrical failure


1, the gun motor does not turn

(1) Fault cause: Three-phase power supply is lacking; Remedy method: Check the power supply line (2) Fault cause: The oil gun switch board is broken (oil gun light indicator is off); Remedy: Replace the oil gun switch board (3) Fault Cause: The burnout of the relay contacts on the driver board; Remedy: Check and replace the driver board (4) Fault cause: Motor coil burned; Remedy: Rewind motor coil (5) Fault cause: No 5V control signal output from the main board; Exclude Method: Check the mainboard or replace the mainboard (6) Fault cause: The power supply board is bad (the power light is off); Remedy: Check the power supply board or change the board


2, can not stop the motor after shutting the gun

(1) Fault cause: The switch board is bad (oil gun light does not shine); Remedy: Replace the switch board (2) Fault cause: Main board 5V control signal is not jointed; Remedy: Overhaul the main board (3) Fault cause: Driver board The contact of the relay is burned; Remedy: Replace the driver board or relay


3, display LCD missing strokes

(1) Fault cause: The LCD pin is not inserted tightly; Remedy: Re-inserted (2) Cause of failure: Damage to the LCD panel; Remedy: Replace the LCD panel (3) Fault cause: Welded display board PCB blank; Method: Rewelding try (4) Cause of failure: bad display board; Remedy: Change display board


4, keyboard operation failure

(1) Failure cause: A key is not available; Remedy: Change or clean the key (2) Fault cause: A row or column cannot be removed; Remedy: Loose wire or line break (3) Cause of failure: All The key is not available; Remedy: Electronic lock is not off; Replace the motherboard (4) Fault cause: The display board is bad; Remedy: Change the display board

Galvanized Steel Coil

Galvanized steel coil is a thin steel sheet that is immersed in a molten zinc bath to adhere a layer of zinc on its surface. It is mainly produced by continuous galvanizing process, that is, the rolled steel plate is continuously immersed in the bath with zinc melting to make Galvanized Steel Sheet; alloying galvanized steel sheet. This kind of steel plate is also made by hot-dip method, but it is heated to about 500 ℃ immediately after it is discharged from the tank to form an alloy coating of zinc and iron. The Galvanized Coil has good adhesion and weldability of coating.

Galvanized steel coil is mainly used in construction, household appliances, automobiles, containers, transportation and home industry. Especially in steel construction, automobile manufacturing, steel warehouse manufacturing and other industries.

Our main zinc coated steel coil is 0.15mm-3.0mm in thickness, 600mm-1250mm in width and 10-450g / m2 in zinc content.In addition, our company has passed ISO certification, steel quality meets international standards, and we are committed to providing the most professional services for consumers who need steel all over the world. High quality products, intimate service, welcome to your consultation.


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