The energy feedback device using USA TI company 32 dedicated DSP chip control.The main circuit adopts advanced German power module (PIM) assembly,and the use of current control type PWM active inverter technology,the technology to overcome all the disadvantages of SCR active inverter. High reliability,strong protection function,and has the characteristics of high power factor sinusoidal current,non pollution to power system etc..
Function characteristics:
Digital DSP control.
Voltage closed loop control, tracking and feedback the grid braking energy.
Control software PLL,high speed,high precision tracking of power grid frequency.
Soft start technology of current loop,inhibition of grid connected current impact.
Perfect protection and alarm function.
The man-machine interface display and operating parameters.
The feedback voltage threshold adjustable function.
Programmable input output.
Application:
Elevator brake.
Lifting equipment and oil well oil extraction machine such as potential energy load.
Power network feedback type electronic load.
Combined to the grid.
Replace the brake resistor. Parameters:
Project
Instruction
input power
Grid voltage
Three phase 380V
Grid frequency
45~65Hz
Control
Current feedback control method
Sine wave current control and closed loop PID control
DC voltage control mode
The DC bus voltage feedforward control and closed loop PID control
Feedback threshold voltage
620~700Vby panel settings,continuously adjustable
Fan control
Temperature control and electric start in two ways
Module over temperature protection
85°C
The digital input
2 programmable port,functions can be set
The digital output
1 programmable digital interface,functions can be set,the maximum output current of 100mA;1 relay output,Chang Kaichang closed can be set
Operation record
The general feedback,work time,accurate to minute
Communication interface
CAN、RS485
Operating parameters
Copy,paste system parameters
Display
Status indication
Power,setting,fault,feedback,operating parameters to five indicating lamps.
Operation monitoring
The effective value of DC bus voltage,power grid,power grid phase line voltage,current effective value feedback,feedback power,module temperature,power frequency parameters
Parameter setting
The setting voltage,frequency of power system,digital programmable port function
Fault display
20 fault recording
environment
The installation environment
Interior,the elevation is less than 1000m,no sunlight,no electric dust and corrosive gas.
temperature
-10~40℃,good ventilation
Ambient humidity
The following 90%RH (no dew)
Vibration
Below 0.5g
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