Shanghai Sixi professional maintenance Mitsubishi inverter, FR-S500

We specialize in providing Mitsubishi drive repair, if Mitsubishi drive repair needs please contact us, we will be happy to resolve your coal-fired emergency! What is regenerative braking? If the motor is in operation reduces the command frequency, the motor becomes asynchronous Run the generator status, and work as a brake, which is called regenerative (electric) braking. Whether to get greater braking force? Regeneration from the motor out of the energy retention in the filter capacitor in the drive, because the relationship between capacity and voltage of the capacitor, professional maintenance Mitsubishi inverter, regenerative braking force general inverter is about 10% to 20% of the rated torque. Such as the use of optional part brake unit, it can reach 50% to 100%. Please indicate the protective function of the inverter protection function can be divided into the following categories:? (1) The detector automatically performs the correction operation after an abnormal state, such as over-current stall prevention, professional maintenance Mitsubishi inverter, regenerative overvoltage stall prevention. (2) detecting power semiconductor devices PWM control signal abnormal blockade, the motor automatically stop. Such as over-current cut-off, regenerative overvoltage cut semiconductor cooling fan overheating and instantaneous power failure protection. Why clutch continuous load, protection function of the inverter on the action? When the load is connected with the clutch, the connection at the moment, the motor idling state to slip from a large area of ??rapid change, resulting in a large current flows through the inverter current trip, it can not operate. Moving in the same factory for large motors together, the inverter will stop running, which is why? When the motor starts to flow and the capacity of the corresponding starting current, motor stator side of the transformer generates a voltage drop, professional maintenance Mitsubishi inverter, motor capacity This large drop impact is large, connected to the same transformer voltage inverter will make a judgment or instantaneous stop, so sometimes protection (IPE) action, causing stopped. What is the frequency resolution? What is the significance? Digital control for the drive, even if the frequency command is the analog signal, the output frequency is also a given level. The smallest unit is called the differential frequency resolution. Inside and back of the drive structure to consider the cooling effect, the relationship between the upper and lower ventilation is also important, therefore, to the inner cell type in the tray, hanging on the wall are taken longitudinal position, as vertically.