1. Check whether the appearance of the inverter is in good condition, including whether the indicator light is in normal operation, whether the task control function of the operation panel is complete, and carefully observe the appearance of the inverter in operation, and do the corresponding recording operation; When repairing the inverter, check whether the voltage value and current value exceed the promised value, so as to avoid the overload problem of the inverter; If an abnormal condition is found, effective measures should be taken to prevent the expansion of the inverter, and try to quickly eliminate the inverter fault in a small scale.
2. When repairing the inverter, check whether the power supply equipment is operating normally and whether the basic line is damaged, so as to ensure that the line operation is always in a stable condition; Check whether the structure of the cooler itself and the operation status are safe and reliable, and whether the inverter is affected by grease and dust during operation. If too much grease and dust accumulate, it will directly block the operation of the air cooler, resulting in the heat dissipation error of the inverter, resulting in an abnormal increase in the temperature of the Schneider inverter, and causing the operation of the inverter. Therefore, it is necessary for the inverter to regularly clean up the dust and oil around the cooler to ensure the smooth exhaust of the cooler.
3. When repairing the inverter, check the heat dissipation and thermal conductivity of the inverter under operating conditions, check whether the radiator is operating normally, do a good job in the daily protection of the radiator, sort out the dust on the radiator, and prevent the heat dissipation function of the inverter from being affected by dust accumulation; When installing the inverter, it is necessary to install it in accordance with the relevant standards, select the device in the outstanding operating environment area, eliminate the adverse effects of the harsh environment on the operation of the inverter, especially to prevent the inverter from being installed in a dusty, humid and corrosive environment.
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characteristic
AC power supply
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Schneider Electric has announced the launch of its Pacific Foundation
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The layout of the inverter is composed of Schneider
rectifier
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Flat wave back
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The UPS boot panel does not show that the UPS is not working - Schneider
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A: C/D curve.
2. What is the rated current level of Schneider Multi9 series C120?
A: 63A, 80A, 100A, 125A.
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Analysis of common problems of Schneider inverter
1. Use the analog output port to indicate the motor frequency, when the motor frequency is 50Hz, why is the output only 16mA?
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The difference between the highest frequency and the basic frequency of the inverter - Schneider
1. There are two ways to say the fundamental frequency:
(1) The frequency corresponding to the maximum output voltage of the inverter is called the fundamental frequency;
(2) When the output voltage of the inverter is equal to the additional voltage, the minimum output frequency is called the fundamental frequency. The fundamental frequency is expressed in fBA.
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(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 far exceeds the change of the motor frequency, and when the inverter is started, it will trip due to overcurrent. Adjusting the acceleration time accordingly to different load conditions can eliminate this problem.
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