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The frequency converter used to report the depth of the fault, you can check the operating instructions of the frequency converter yourself, there is a small card on this frequency converter, you can check his brand.
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Low-frequency output oscillation fault When the inverter is output at low frequency (below 5Hz), the forward and reverse direction of the motor output pulsates frequently, which is generally a problem with the main board of the inverter. (12) Oscillation fault in a certain acceleration interval.
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The depth of the fault report, the sixth is the kind of inverter, the kind of function of the inverter may be damaged, so you should report the fault, and you can only know it with the computer code.
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What is the frequency converter with the fault reporting depth? This is the inverter that hurts the contraceptive device for flaw detection.
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The load is abrupt or too large, the acceleration is too fast, the deceleration is too fast! If it used to be normal, and now this problem occurs, then the parameters are reset and then set, if there is still a problem, it may be that the frequency conversion is broken.
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Report the depth of the fault, six what is the inverter is the pathfinder inverter.
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In the case of his inverter, it is generally based on some fluctuations generated by the current power, so its inverter is very good.
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Many inverters that report the depth of the fault will not be the first fault.
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Report the inverter at a depth of 8:86 and you can go online.
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Report a fault, what is the depth of the TV? You can give after-sales service to ** consult him. Which Gada? No, Jing'er.
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This should be one of a kind. A kind of test result, or something to wait for, an electrical one.
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The user Zhang is different, and many times professional reimbursement can enter.
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Indicates that the IPM and IGBT faults of the inverter module, mainly due to the short circuit of the output to ground, the cable skin of the inverter to the handshake motor is too long (more than 50m), and the inverter module or its protection circuit is faulty. During on-site processing, remove the motor wire, measure the inverter module, observe whether there is a short circuit in the output, and check whether the motor is short-circuited to the ground and whether the motor wire exceeds the allowable range. Generally, IGBT overcurrent protection is operated by detecting the tube pressure drop when IGBT is turned on.
When the IGBT is normally turned on, its saturation voltage drop is very low, when the IGBT is overcurrent, the voltage drop VCE will increase with the increase of the short-circuit current, and when it increases to a certain value, the detection diode DB will be reversed conduction, and the reverse current signal is sent to the CPU processor through the IGBT drive protection circuit, and the CPU blocks the IGBT output to achieve protection. If the detection diode DB is damaged, the inverter will have an ER15 failure, and the detection diode can be replaced for troubleshooting during on-site processing.
The principle of inverter (English variable-frequency drive, referred to as VFD) is a power control equipment that uses the principle of frequency conversion technology and microelectronics technology to control the AC motor by changing the frequency of the working power supply of the motor. The power supply used is divided into AC power supply and DC power supply, and the general DC power supply is mostly obtained by AC power supply through transformer voltage transformation and rectification filtering. AC power accounts for about 95% of the total power supply used by people.
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The fault adjustment mode of SV inverter is generally input by the optocoupler to the MCU alarm signal, and the input side (some of which are the output side) of the optocoupler can be short-circuited to shield the fault alarm. >>>More
Stalled. See if the motor is spinning too slowly and the current is not too large. >>>More
1. Caused by incorrect parameter setting. If the acceleration time of the inverter is set too short, the change of the output frequency of the inverter is much more than the change of the motor frequency, and when the inverter is started, it will trip due to overcurrent. This fault can be eliminated by adjusting the acceleration time accordingly depending on the load situation. >>>More