Taian Haishu Machinery Co.,Ltd.
Telephone: +86-538-8606169
Fax: +86-538-8606169
Address: Zhouwangzhuang Village, Shankou Town
Taian City Shandong Province China
When the CNC lathe is running, there may be an emergency stop alarm phenomenon. After restarting the CNC lathe, it is necessary to calibrate various machining data, which is very time-consuming and has a significant impact on machining efficiency. Moreover, if the cause of the emergency stop cannot be found or is not handled properly, corresponding emergency stop alarm phenomena may also occur. Today, our CNC lathe manufacturer will explain the reasons and solutions for the emergency stop alarm of the lathe.
Firstly, there are five major reasons for emergency stop alarms.
1: The Hall element circuit has malfunctioned. In general, this situation is when the emergency stop is pressed, and there are usually more than one emergency stop or the emergency stop line is disconnected for a machine tool.
2: Magnetic steel collides with Hall element. This phenomenon usually occurs when a certain axis is pressed onto the hard limit. Some machine tools string the hard limit of each axis into an emergency stop chain, or it may be due to foreign objects getting stuck in the X-axis screw. Disassemble the X-axis and clean it up inside.
3: Hall element short circuit. If there are other alarms, please focus on checking the other alarm, which is likely to be the emergency stop alarm caused by another alarm.
4: The knife holder motor has three-phase reverse phase or missing phase. An emergency stop alarm occurs when changing the tool on the CNC lathe. Check the motor circuit for any broken parts or program errors when arranging or rotating the tool. An emergency stop during operation is likely due to a misoperation of the limit switch. Please check if the travel switch of the moving axis is pressed by something. Of course, it is also possible that the emergency stop circuit wire is broken.
5: The Hall element is misaligned with the magnet. Is there a voltage input to the electromagnetic actuator coil controlled by the emergency stop switch, and can the electromagnetic actuator work normally? Some manufacturers' three-axis limit switches only have an emergency stop alarm when the overtravel switch is pressed. If it is an overtravel alarm, it may be due to a malfunction of the limit switch. Check and install a new limit switch.
Next is the solution to the emergency stop alarm.
1. Turn the mode switch to MDI.
2. Press the knife offset key OFFSET.
3. Parameter can be written as' No '=0.
4. Press the RESET+CAN keys simultaneously to eliminate the alarm. 、
The above is the reason and solution shared by CNC lathe manufacturers for the emergency stop alarm of lathes. We hope that the above explanation can be helpful for everyone when operating CNC lathes in the future.
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