【Screw Press】Electrical Failure

2024-08-06 Newwish QI

1. Touch screen prompt: System is in emergency stop state

Cause:

1) Emergency stop button of press is pressed

2) Emergency stop button of master control system is pressed

Solution:

1) Rotate and reset the emergency stop button on press

2) Rotate and reset the emergency stop button of master control system



2. Power cabinet cannot be powered on

Cause:

1) The air switch of main power supply of control cabinet is not closed

2) Problem of incoming power supply

Solution:

1) Check whether the air switch of main power supply of control cabinet is closed

2) Check the incoming power supply



3. Touch screen prompt: Actual ejection stroke exceeds 5mm, and striking is prohibited

Cause: Initial displacement deviation of ejector rod exceeds 5mm

Solution: Check actual ejection displacement and zero offset in ejector setting, and add actual value to zero offset



4. Touch screen fault prompt: Motor winding temperature is too high alarm

Cause: Motor winding temperature is too high, or detection probe is damaged

Solution: Check motor winding temperature and check the quality of temperature measuring probe



5. Touch screen prompts: Encoder error, strike prohibited, please contact the equipment manufacturer

Cause:

1) Encoder damage

2) Interference, failure or damage of the middle limit proximity switch

Solution:

1) Check the encoder and encoder device

2) Check the encoder circuit

3) Adjust the distance between the upper limit and middle limit proximity switches or replace the middle limit proximity switch



6. Touch screen prompts: Main inverter fault alarm

Cause: Inverter failure

Solution: Please contact our after-sales service department



7. The terminal of the inverter RDCU main control board is burned

Cause: Poor grounding of the fuselage and power cabinet

Solution: Reprocess the grounding wire, and the power must be turned off before welding near the equipment, and the ground wire of the welding must be grounded nearby



8. There is striking energy, the striking action is normal, and there is no return

Cause: Q0.2 return signal line is disconnected

Solution: Just reconnect it



9. Touch screen prompts: The striking force is seriously overloaded, striking is prohibited, please check the striking energy

Cause: The striking force is seriously overloaded

Solution: Reduce the striking energy



10. Touch screen prompts: The tonnage detection device is abnormal, please check whether it is installed and connected correctly

Cause: The tonnage detection device is abnormal

Solution: Check whether the tonnage detection device is installed and connected correctly



11. Touch screen prompts: Left brake alarm, striking is prohibited, please check whether the brake is working normally

Cause: Left brake alarm

Solution:

1) Check whether the left brake is working normally

2) Whether the proximity switch is on when the brake is lifted



12. Touch screen prompts: Right brake alarm, striking is prohibited, please check whether the brake is working normally

Cause: Right brake alarm

Solution:

1) Check whether the right brake is working normally

2) Whether the proximity switch is on when the brake is lifted



13. Touch screen prompts: The striking force is not within the set range, the product is unqualified

Cause: The striking force is not within the set range, the product is unqualified

Solution: Reasonably adjust the upper and lower limits of the tonnage display without affecting the normal use of the equipment



14. The double-handed striking button is pressed, and the press does not strike

Cause:

1) The "mold zeroing" operation is not completed

2) The "adjustment" mode knob is turned to "one-beating mode or multi-beating mode" and the corresponding striking mode light is on

3) There is an alarm message prohibiting striking on the "alarm information" page

4) The PLC is broken, there is input but no output or no input

Solution:

1) Move the downward slider to complete the "mold zeroing" operation

2) Adjust the "mode knob to the corresponding striking mode and the corresponding striking mode light is on;

3) Enter the "Alarm Information" interface, check what alarm information causes the failure to strike, and then solve the corresponding alarm according to the instructions

4) Check whether there is input at the input point (I0.7) corresponding to the PLC strike. If there is input, check whether there is output (Q0.0, Q0.1, Q0.2, Q0.3)



15. Touch screen fault prompt: PLC communication connection error

Cause: The touch screen and PLC communication cable are in poor contact or disconnected

Solution: Check whether the touch screen and PLC communication cable are loose or disconnected



16. The touch screen is black or flickering

Cause:

1) The touch screen is damaged or the fuse is burned

2) The 24V DC voltage is unstable, and the external wiring 24V may be short-circuited to the ground

Solution:

1) Replace the touch screen or touch screen fuse

2) Check whether the external wiring causes the 24V ground short-circuit



17. The control system cannot be powered on

Cause:

1) 24V DC power supply is damaged

2) System 24V fuse is broken, no 24V

Solution:

1) Check whether the DC power supply has 220V input and 24V output

2) Check whether the fuse in the fuse is intact



18. The oil distributor does not alarm

Cause:

1) The pointer detection proximity switch is broken

2) PLC corresponding point (I3) 0) No signal input

Solution:

1) Check the proximity switch, including the line

2) Check whether the PLC point is intact and whether there is input

Wuhan Newwish Technology Co.,ltd.

+86 138 7112 6889 

overseas@newwishtech.com

No.2,Venture Avenue, Gedian Economic Development Zone, 
Ezhou, Hubei, China

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