In factories, both schneider, ab, and national product plates, frequency of jumps is a problem, and many plants think it's broken, blindly searching for maintenance, changing equipment, mostly for operational or environmental problems, so that they can get back to normal without spending money。
Eight years of dry maintenance, i summarised the four core causes of frequent frequency outages, responding to specific solutions, sharing them with you, helping you quickly to sort them out, and reducing the loss of stoppages:
1. The electricity grid is unstable. Excessive voltage on the grid and imbalanced triple-phase voltage can lead to more pronounced voltage fluctuations, especially during peak plant periods. Solutions: installation of pressure stabilizers and stabilization of electricity grid voltage; if the triple voltage is unbalanced, inspection of circuits, adjustment of connections to ensure consistency of the triple voltage
2. Load overload. The load driven by the frequency transformer exceeds the rated load, or the load card is stagnating, the card dies, causing excessive currents, triggers overload protection, and frequent jumps. Solutions: check loads, clean card mollusks, resize loads to avoid long-term overloading; if loads are indeed too large, replace more power-intensive variants
3. Dispersion of heat. The long-term high-load operation of the varianter, the congestion of the heat channel, and the damage to the heat fans cause the equipment to overheat and trigger the heat protection jump. Solutions: regular clean-up of the internal dust of the frequency transformer to check whether the dispersing fan is functioning and replace it in a timely manner if the fan is damaged; and ensure that the processor is equipped with a well-ventilated environment to avoid accumulation of miscellaneous items
4. Parameters are not justified. The overloading protection parameters of the mutator, the inappropriate setting of the acceleration speed reduction time parameters also lead to frequent jumps. Solutions: rebug parameters, depending on the type of load, such as longer acceleration time, adjustment of overload protection currents to match actual operational needs
Formerly, a hardware processing plant in dongguan, the schneider varianter, had frequent outages and had several repair teams, for no reason, but had to restart repeatedly and delay production. I went to check and found that the power grid was unstable, that there had been no break-off problems, that it had cost less than $2,000, and that the plant had been completely resolved
The four causes are checked first, and most of them can be resolved quickly, and if they cannot be resolved, then they are tested by a professional team to avoid spending money
And if there's no sign of electricity, alarms, vibrating, burning, etc., or repeated failure to fix it, i'm welcome to trust you. I'll give you a free analysis of the failure points, give you a good idea of maintenance, offer a reasonable price, fix it, do a test, provide a quality assurance, and don't let you spend your money, or make card cases. # work-control maintenance #
