Main engine cannot be started
Causes:
- Emergency stop shutdown
- 1QF1 off
- Lack of phase
- Hydraulic oil cannot be extracted
Solutions:
- Turn on the emergency stop switch
- Close switch 1QF1
- Check the circuit
- Check if the filter is blocked
NCRDY is not displayed
Causes
- CNC system start switch is not activated
- X-axis, shear angle and clearance are not set correctly
Solutions
- Activate the NC system start switch
- Press the steering wheel control key once and move the cursor to the relevant positions to check which X, A and G are not set correctly and analyze the cause.
The X axis does not work correctly
Causes:
- Servo drive alarm
- 1QF3 not closed
- Failure of power line, encoder line or servo motor
Solutions:
- Check the cause of the alarm (see notes)
- Close 1QF3
- Check the wiring.
The size of the X axis is 5mm and 10mm larger or smaller than the normal state
Causes:
Inaccurate position location when returning to the reference point.
Solutions:
- Shut down and restart.
- Move the sensor from the reference point 1-2 mm or adjust the sensor detection distance.
The blanking size is different from the actual programmed size
Causes:
- Caused by manual feeding
- Machine tool rear stop movement
Solutions:
- Try feeding and grooming again
- Adjust the X reference point
The machine cannot fall
Causes:
- Stuck down valve
- No signal to downstream valve
- No main pressure
Solutions:
- Check the descent valve
- Check the control circuit
- Check the main pressure valve
No main pressure
Causes:
- Main engine not started.
- The main pressure valve is damaged or inoperative.
- PLC control circuit failure.
Solutions:
- Start the main engine.
- Replace or clean the main pressure valve and check the control valve coil circuit.
- Check the PLC controller.
Slider does not fall after pedal is pressed
Causes
- The controller has no “ncrdy” signal
- Loose line
- PLC without signal output
Solutions
- Check that there is no “ncrdy” reason
- Check and connect the relevant circuits according to the electrical schematic diagram
- Check PLC controller
