标签：
wood cnc router starts, the device does not run correctly how to do
Some customers buy after engraving machine, engraving machine reaction has started, but the device can not run, so that how to solve it?
Failure Solution:
First, for a considerable voltage and current power supply stepper motor drive tube, further confirmation of the chip problem.
Second, the recovery of the chip supply pin, replace the stepper motor windings with a light-emitting diode circuit for analog load. Power, the light-emitting diode are bright, that the windings are energized, which is not in line with the requirements of the input step pulse line no response, it was confirmed that the chip is damaged. But the chip City
Field does not, under the drive housing space permits, i.e., by hand using a combination head of the existing line D flip-flops and NAND gates in combination with an annular pulse generator designed to produce on a small printed circuit board, remove the original chip small PCB pin mounted on the original chip pads.
Still use light-emitting diodes as a dummy load, the power added step pulse phase sequence followed by light.
Finally, the removal of the simulated load, access to the host, electricity, equipment operating normally.
Fault performance:
Once started. Equipment can not run. Maintenance personnel inspection, found a power tube is damaged, but the absence of information, figure out the role of the tube, that is power-driven front push, put a power management, the power, the peace burned again, for also damage the tube.
Failure Analysis:
Initial analysis of wood cnc router is repeatedly blown peace by qualified service personnel inspection. Drive there is certainly a large current is not normal, and check out a power tube damage. But there is no clear role for the tube. The tube is actually stepping motor power drive tube, stepper motor for high-voltage start, they would have to accept the high voltage high current. Static checking and found the ring pulse distributor circuit, the power to the ground terminal of the resistance is small, but there is no short circuit. According to the number of lines in the power components and power analysis of the resistance to ground terminal should not be so small that it was suspected that the line has been damaged components.
https://www.youtube.com/watch?v=K8Y7bENHNAk
wood cnc router starts, the device does not run correctly how to do
标签：
原文地址：http://www.cnblogs.com/lasermornone/p/4288608.html
