embroidery box will appear near the edge of the bottom
2, first test to CN15 Remove the short wire, connect the 100W or so light bulbs, to prevent damage to the module circuit in question 3, have more than half an hour with a load test, the module re-heating, use axial fans blowing on the heat sink. to ensure that the module, but heat 4. Now DU10 a large number of soft fault occurs, the circuit must be very familiar with, Do not arbitrarily change the circuit, the circuit as it hit bottom plate of glue, removal must be careful to avoid damage to the circuit board. 02 ten shot five-phase drive is the most widely used framework for embroidery machine drive, due to a long service life, and now most have entered the maintenance period, the company now has dozens of monthly maintenance amount! Under a lot of maintenance practices , summarizes some maintenance experience to share with you! 1. preliminary test is generally open the cover to observe whether the apparent overheating or burn marks to quickly identify problems! analog multimeter 1K file with the five-phase forward and reverse measurement output resistance, business signs
should be consistent, in general resistance of 30K - 50K between! If there is a significantly smaller relative to the resistance in the 15K or so, then the corresponding output FET damage. generally IRF740 and IRF9640! replacement Note order and install the insulation on the cooling plate. and check the drive pipe C2611 is normal! 2, the test with 100-volt AC power supply, observe the light of the situation, identification of maintenance and repair program ideas POWER lamp does not light, check the AC input fuse 10A is normal, the transformer is normal, circuit-board 0.5A insurance is normal! 5 volt DC voltage normal? focus on examination of 7805 in the maintenance of three-terminal regulator blocks, there are easy problems 2200UF/25V the filter capacitor! OC lights, over-current fault, the output FET key check, be sure to pay attention to selecting replacement genuine tube, or not long in turn damage. Another point to note that the parameters of the tube to be basically the same. PE lights, under-voltage fault , measurable, large no-load voltage across the capacitor, vector artwork
generally 140 volts or more! most of this failure is caused by a large capacitor leakage, can see the edge of the liquid leaking capacitors! replace the capacitor can be 820UF/250V---1000UF/250V! to Note and installation of capacitor size OF the positive and negative lights, over-voltage fault, it seldom encountered! key check whether the abnormal detection circuit. OH light, heat failure, check the cooling fan is working! encountered in the actual repair to multiple cases OH power to light lamps, is to test four relatively light damage to the inverter 74LS04 full light, you can check the 5 volts is normal, we found that many in the maintenance of such a failure is CPU damaged! This CPU has an internal procedure, if need to contact the company, the company has a number of drivers repair parts 3 and load testing a lot of trouble to bring before the load shown, such as the phase output, the motor has abnormal sound, the need to test whether the five-phase balanced output! use to the oscilloscope and other special testing tools do not make details, interested friends may be concerned about our upcoming book written == embroidery Daquan Electrical Road Maintenance We all know the bottom line of computerized embroidery machines are generally the tension and surface lines from the bottom tensioner (clip thread) to adjust the decision, but in the actual maintenance, and sometimes encounter tone embroidery machine noodles very loose, embroidery digitizing
very tight bottom line has been transferred, but the bottom line is there generic problems, or vice versa. What is his reason? In addition to problems embroidery machine frame (usually said to be too high embroidery frame, embroidery box will appear near the edge of the bottom line when the pan.), I am afraid to count the time of the thread the most serious. Processing (repair) over embroidery machine knows that, thread embroidery machine time curve and time curve of the hook hook line adjustment of the phase relationship is a more headache. As you may know, embroidery machine hook hook line time (on the hook position) is 196 degrees (usually 192--197 degrees, we all like to tune a little too late, so the phenomenon of less wool, after the time I will discuss in detail the time and the needle bar hook line between high and low.), and thread time (challenge cam, cam position also known as nylon) are generally in 293 - 298 K or so. Why should this happen, sooner or later Can it, if the early or late, there will be affected? Today we have computer embroidery machine embroidery thread tension problems of time and analyze the test, and the impact of other parameters after each other postings I will share with you discussed and analyzed.embroidery designs
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