Obstacle 1: The low-pressure circuit breaker of the CNC press brake oil pump trips after the proposal! The following checks are required for such obstacles:
1. Check for any phase loss in the power supply.
2. Check if the high-pressure filter is severely blocked, causing excessive current in the oil pump motor.
3. Check if the high-pressure circuit breaker is set too small.
Obstacle 2: After the CNC press brake is turned on, the reference point cannot be found when returning to the reference point.
1. Check if the reading head of the grating ruler is loose, causing the machine to not align the reading head with the reference point of the grating ruler during the return trip, and the travel of the cylinder has been used up at this point, with the oil pump operating outside its duty load. If this is the reason, press the CNC miscellaneous red stop button, interrupt the return to the reference point, reconnect and calibrate the connection plate of the grating ruler, then operate in manual mode, move the slider manually downwards, align the slider with the lower die, and then switch back to manual or semi-automatic mode, return to the reference point, and eliminate the obstacle.
2. After the machine completes the previous operation, if the operator does not strictly follow the shutdown procedure and leaves the slider at the top dead center position before powering off, and then fails to move the slider manually downwards and position it to align with the upper and lower dies before initiating the return to the reference point operation, it may result in the inability to find the reference point during this operation. If this is the reason, switch to manual mode, manually move the slider up to align with the upper and lower dies, then switch to semi-passive or passive mode, and re-establish the reference point.
Obstacle 3: For the DNC60 or DNC600 CNC press brake system, when the screen displays nothing and the programming keys are gray with the indicator light flashing.
The main reason for this type of obstruction is that the system operator did not promptly and effectively clear the unnecessary program from the previous production before starting a new program, but directly made modifications to the previous program, causing the system's buffer memory to become full through repeated operations, resulting in abnormal system operation. First, disconnect the main power supply, then simultaneously press the "++" and "--" keys on the system keyboard, restore the power, and put the system into an initialization state. The screen will display the following:
Next, to clear the project you want to clear urgently, input "1" to indicate clearing that project, then input the code "817," press the confirm key, and the screen will prompt you that the content to be cleared has been completed.
Obstacle 4: The inaccurate counting of the grating ruler on the CNC press brake causes errors in the bending angle.
This type of obstacle mainly reflects the cumulative increase in the repeated positioning accuracy errors of the "Y1" and "Y2" axes, leading to significant errors in the bending workpiece angles, with the angle errors accumulating from the previous base. The issue primarily stems from the grating ruler missing pulse counts in the signal response of the "Y1" and "Y2" axes. It is crucial to dismantle and clean the grating ruler with dust and vibration prevention measures, redesign the installation method from unreasonable to proper, and address the obstacle by contacting the manufacturer for repairs or replacement of the grating ruler.
Obstacle 5: After programming the output, the CNC press brake triggers a safety interlock alarm for the "X" axis and "R" axis backgauge.
This type of fault primarily arises from discrepancies in the setting of the safety distance between the upper and lower dies during mold programming, as well as conflicts between the current programming standards for the "X" and "R" axes and the limits set for these axes, leading to system alarms. For safety reasons, the system will not operate normally. It is essential to reprogram or modify the program for the product, adjust the parameters of the molds to meet the requirements, cancel the alarm, and resume operation.
Obstacle 6: Error alarms occur for the X-axis and R-axis drive motors of the backgauge on the CNC press brake.
For this type of obstacle, the first step is to open the electrical box and check the alarm code displayed on the driver. Refer to the driver's user manual to determine the cause of the alarm indicated by the driver.
There are two types of common alarms:
Alarm 16 indicates an overload alarm for the drive motor. Check if the transmission of the backgauge X-axis and Y-axis is smooth, if there is excessive resistance, and if the X-axis and R-axis have reached their mechanical limits. If so, clear any obstructions in the machine.
Alarm 22 indicates an alarm for the encoder feedback signal. This situation may be caused by poor contact, detachment, disconnection, or signal interference in the "exploration" process, all of which need to be investigated individually.
Obstacle 7: The computer display position of the Y1 and Y2 axes on the CNC press brake does not match the actual position.
This obstacle primarily occurs when the original reference point is inaccurate, requiring a reinitialization of the reference point.
Obstacle 8: The precise positioning of the X-axis and R-axis on the CNC press brake computer does not match the theoretical position.
This obstacle typically occurs when the positions of the X-axis and R-axis have been moved while the machine is in a powered-off state, causing the computer to recall the positions before shutdown and resulting in a discrepancy in the actual positions of the X-axis and R-axis. Reinitialization of the X-axis and R-axis positions is necessary.
Obstacle 9: The misalignment of the Y1 and Y2 axis positions exceeds the synchronization error distance approved by the CNC press brake system parameters, preventing the upper and lower beams from moving.
This obstacle mainly occurs when the slider was not placed in contact with the upper and lower dies before the machine was powered off, leading to a shutdown without proper positioning, causing the actual positions of the Y1 and Y2 axes to exceed the specified limits. It is necessary to adjust the actual positions of the Y1 and Y2 axes accordingly. The current values displayed on the computer should also be checked for proper operation.
1. Check for any phase loss in the power supply.
2. Check if the high-pressure filter is severely blocked, causing excessive current in the oil pump motor.
3. Check if the high-pressure circuit breaker is set too small.
Obstacle 2: After the CNC press brake is turned on, the reference point cannot be found when returning to the reference point.
1. Check if the reading head of the grating ruler is loose, causing the machine to not align the reading head with the reference point of the grating ruler during the return trip, and the travel of the cylinder has been used up at this point, with the oil pump operating outside its duty load. If this is the reason, press the CNC miscellaneous red stop button, interrupt the return to the reference point, reconnect and calibrate the connection plate of the grating ruler, then operate in manual mode, move the slider manually downwards, align the slider with the lower die, and then switch back to manual or semi-automatic mode, return to the reference point, and eliminate the obstacle.
2. After the machine completes the previous operation, if the operator does not strictly follow the shutdown procedure and leaves the slider at the top dead center position before powering off, and then fails to move the slider manually downwards and position it to align with the upper and lower dies before initiating the return to the reference point operation, it may result in the inability to find the reference point during this operation. If this is the reason, switch to manual mode, manually move the slider up to align with the upper and lower dies, then switch to semi-passive or passive mode, and re-establish the reference point.
Obstacle 3: For the DNC60 or DNC600 CNC press brake system, when the screen displays nothing and the programming keys are gray with the indicator light flashing.
The main reason for this type of obstruction is that the system operator did not promptly and effectively clear the unnecessary program from the previous production before starting a new program, but directly made modifications to the previous program, causing the system's buffer memory to become full through repeated operations, resulting in abnormal system operation. First, disconnect the main power supply, then simultaneously press the "++" and "--" keys on the system keyboard, restore the power, and put the system into an initialization state. The screen will display the following:
Next, to clear the project you want to clear urgently, input "1" to indicate clearing that project, then input the code "817," press the confirm key, and the screen will prompt you that the content to be cleared has been completed.
Obstacle 4: The inaccurate counting of the grating ruler on the CNC press brake causes errors in the bending angle.
This type of obstacle mainly reflects the cumulative increase in the repeated positioning accuracy errors of the "Y1" and "Y2" axes, leading to significant errors in the bending workpiece angles, with the angle errors accumulating from the previous base. The issue primarily stems from the grating ruler missing pulse counts in the signal response of the "Y1" and "Y2" axes. It is crucial to dismantle and clean the grating ruler with dust and vibration prevention measures, redesign the installation method from unreasonable to proper, and address the obstacle by contacting the manufacturer for repairs or replacement of the grating ruler.
Obstacle 5: After programming the output, the CNC press brake triggers a safety interlock alarm for the "X" axis and "R" axis backgauge.
This type of fault primarily arises from discrepancies in the setting of the safety distance between the upper and lower dies during mold programming, as well as conflicts between the current programming standards for the "X" and "R" axes and the limits set for these axes, leading to system alarms. For safety reasons, the system will not operate normally. It is essential to reprogram or modify the program for the product, adjust the parameters of the molds to meet the requirements, cancel the alarm, and resume operation.
Obstacle 6: Error alarms occur for the X-axis and R-axis drive motors of the backgauge on the CNC press brake.
For this type of obstacle, the first step is to open the electrical box and check the alarm code displayed on the driver. Refer to the driver's user manual to determine the cause of the alarm indicated by the driver.
There are two types of common alarms:
Alarm 16 indicates an overload alarm for the drive motor. Check if the transmission of the backgauge X-axis and Y-axis is smooth, if there is excessive resistance, and if the X-axis and R-axis have reached their mechanical limits. If so, clear any obstructions in the machine.
Alarm 22 indicates an alarm for the encoder feedback signal. This situation may be caused by poor contact, detachment, disconnection, or signal interference in the "exploration" process, all of which need to be investigated individually.
Obstacle 7: The computer display position of the Y1 and Y2 axes on the CNC press brake does not match the actual position.
This obstacle primarily occurs when the original reference point is inaccurate, requiring a reinitialization of the reference point.
Obstacle 8: The precise positioning of the X-axis and R-axis on the CNC press brake computer does not match the theoretical position.
This obstacle typically occurs when the positions of the X-axis and R-axis have been moved while the machine is in a powered-off state, causing the computer to recall the positions before shutdown and resulting in a discrepancy in the actual positions of the X-axis and R-axis. Reinitialization of the X-axis and R-axis positions is necessary.
Obstacle 9: The misalignment of the Y1 and Y2 axis positions exceeds the synchronization error distance approved by the CNC press brake system parameters, preventing the upper and lower beams from moving.
This obstacle mainly occurs when the slider was not placed in contact with the upper and lower dies before the machine was powered off, leading to a shutdown without proper positioning, causing the actual positions of the Y1 and Y2 axes to exceed the specified limits. It is necessary to adjust the actual positions of the Y1 and Y2 axes accordingly. The current values displayed on the computer should also be checked for proper operation.
