FUJI Fuji inverter maintenance
Brand: Fuji FUJI
Model: FRN15LM1S-4C
Specifications: 15kw
Fuji inverter maintenance FUJI inverter repair Shanghai FUJI Fuji inverter maintenance service center FUJI Fuji
Characteristic
Small frequency converter with the latest technology.
Optimal control of motor with dynamic torque vector control.
The series inverter volume is small, but the performance is high, the starting torque of the motor at 0.5Hz is 200%, the low speed range of the torque ripple is higher than before.
Inverter has a variety of intelligent functions, such as automatic energy saving, PID control, self tuning and RS485 communications, and enhanced the maintenance / protection
The protection function, such as increasing the input surge current suppression and life prediction etc..
1 dynamic torque vector control
Dynamic torque vector control system through the high-speed calculation, determine the power of the motor corresponding to the load state of the required power, Fuji Corp proprietary technology
Optimal control voltage and current vector, output maximum torque.
Starting torque 0.5Hz 200%
Can be safely used for heavy loads, such as lifting and conveying systems. Can also achieve the conversion of the second motor operation.
Non tripping operation
Greatly improved the current limit function (automatic deceleration, stall prevention), even against the impact load can also be stable operation.
The top of the picture is that when the FVR-E11S uses a dynamic torque vector control to control the 3 phase motor (8 type series, 4 pole) when the dynamic torque vector control is used
For example, the continuous running torque is controlled by the allowable temperature rise of the motor to allow the load torque. Short
When running torque is the motor output torque.
Reduce the speed fluctuation of the motor speed range.
Fuji unique On-Delay compensation method for the motor in the low speed range of the speed of the frequency of the frequency of the inverter is reduced to about half
2 miniaturization
Minimum level of miniaturization
Volume is only 70% (3 0.75kW FVR-E9S) of 200V series inverter.
Uniform height
The unity of 3.7kW and below capacity models for 130mm, easy to design and installation.
The whole machine can connect the brake resistor
Due to the internal brake transistor with, so you can is connected with a braking resistor option, in order to improve the regenerative braking capability, should meet the
Requirements for larger braking force required to be used in the transmission belt and the transportation machinery.
3 consideration of surrounding equipment
Standard internal charge current suppression circuit
Can reduce the capacity of the surrounding equipment, such as the smaller capacity of the magnetic contactor.
Small interference
Greatly reduce the interference effects of the surrounding devices such as sensors.
The connecting terminal of a DC reactor is provided to connect the DC reactor and to suppress a side harmonic current.
Set high carrier frequency, the motor can run steady.
Can choose to control the meter output (analog volume / pulse volume switch)
24V power supply for transistor output
4 advanced and convenient functions
Standard feature of automatic energy saving
Control the motor to minimize the loss, to achieve more energy saving.
New online auto tuning
On line self tuning in the process of motor operation, the characteristics of the motor are often checked to realize high precision speed control. Second motor
Also have this kind of self setting function, 1 converter to switch 2 motors, 2 motors can achieve high precision operation.
Introducing control of rotating motor
After the instantaneous power failure, the motor can rotate freely, and can no longer start the motor by detecting the speed of the motor.
PID function
Standard with PID control function, can best control the flow of air blower and pump.
Multiple frequency setting method
Key set or analog input set (4 ~ DC +5V, 0 ~ DC 10V, 0 ~ + DC 20mA, positive / reverse control)
16 steps (0 to 15 step) setting and increasing / decreasing control etc..
VG5N G7S K7S C9S E9S FRN-
P9S C11S E11S G11S P11S VG7S C1S LM1S E1S F1S H7 5000G11UD G9S and other series
FRN18.5G11UD VG5N Fuji inverter maintenance
In the process of using Fuji inverter, there have been a phenomenon of flow tripping. The frequency converter tripping over current trip and the flow of the flow and the rise and fall of the flow of the flow, the short-circuit fault, etc.. In this paper, we analyze the causes of the flow.
A light load current
1 fault characteristics
When the frequency converter with load is very light, it will happen the current tripping, which is a unique phenomenon of frequency conversion speed control. In the U / F control mode, there is a a very prominent problem: is in the running process, since the U / F mode is not selected, u compensation caused by magnet motor through saturated, the motor current increases, inverter overcurrent trip.
2 Judgment and processing
At low frequencies, in order to drive a heavier load, the torque compensation (i.e., u/f ratio, also called the torque boost) is often needed. The saturation degree of the magnetic circuit of the motor varies with the load. The tripping caused by the magnetic circuit saturation of the motor is mainly in the case of low frequency and light load. Solution: repeatedly adjust the u/f ratio, can be used to automatically carry out the method, select the u/f mode or adjust the potentiometer and other methods to test until the right, no jump car.
3 special cases
A frn90g11-4cx inverter (90kw large granule urea conversion motor no-load cooling), frequent over-current trip. When the cooling roller is arranged in the cylinder to most large granule urea but stable. Large particle cooling conversion motor no-load chose U / F pattern repeated adjustments to the U / F ratio, higher output voltage in order to obtain a start-up torque, unloaded over current tripping problem is solved.
Fuji inverter repair common models:
SL SL1-900-033-4
