PI7800 SERIES AC drives

PI7800 SERIES AC drives(0.2-220KW) ) Novel structure design Complete upgrade of the software Optimized production techniqu

Applicationsmechanics, electronics, metallurgy, mining, petrochemical, transportation, building materials, municipal, metal processing, textile, printing and dyeing, paper making, Injection machine, central air conditioning, numerical control machine tool, air-compressor, fan and pump, blower, air conditioner for large buildings; wastewater treatment system; water supply system for large buildings; public water supply system and other industries and fields.

Brief IntroductionNew PI7800 Family inverter supplies the more comprehensive motor control solution to you. It employs the advanced technology of PWM control and vector control, high performance power module and DSP control. It is with internal current loop to realize high precision of close loop control and reach the stability and precision of current and frequency. Completely new manufacture technique and test equipment ensures the better stability and reliability of the product. Characteristic Novel structure design; Complete upgrade of the software; Optimized production technique; Mature test equipment.Standard Specification:

items				specifications
power	Voltage and frequency			Single-phase 200~240V,50/60Hz    Three-phase 200~240V,50/60Hz Three-phase 380~415V,50/60Hz    Three-phase 440~460V,50/60Hz Three-phase 575V,50/60Hz        Three-phase 660V,50/60Hz Three-phase 1140V,50/60H
	Allowable Fluctuation range			voltage: ±15%   frequency: ±5%
control	Control system			high performance vector control inverter based on DSP
	Output frequency			G/F/Z/S/T/M:0.00~800.0Hz,the maximum frequency range is 10.00~800.0Hz H:0.00~2000.0Hz,the maximum frequency range is 10.00~2000.0Hz.
	control method			V/F control, V/F+ PG control, vector + PG control
	waveform produce methods			asynchronous space vector PWM, step less and subsection synchronous space vector PWM,2 phase optimized vector PWM
	Auto torque boost function			Realize low frequency (1Hz) and large output torque control under the v/f control mode.
	Accelerate /decelerate control			Acceleration/Deceleration S curve subsection set mode. The maximum running time is 26 hours.
	Program running control			7 step speed program running, the maximum running time is 88 hours.
	frequency setting accuracy			Digital references:0.01Hz(300 Hz and below),0.1 Hz(above 300 Hz) Analog references:0.05Hz/60Hz
	frequency accuracy			Speed control tolerance 0.01%(25°C±10°C)
	V/F curve mode			Linear,square,8 V/F curve set by user
	Over load capability			G/S:150% for one minute, 200% for 0.1 second F:120% for one minute, 150% for 0.1 second Z/M/T:180% for one minute, 250% for 0.1 second H:250% for one minute, 300% for 0.1 second
	slip compensation			0~10% automatic slip compensation
running	Input  signal	running method		Keypad/Terminal/Communication mode
		frequency setting		There are 11 frequency setting modes, including DC 0~10V, DC 0~20mA, DC 4~20mA, potentiometer on the keyboard.
		start signal		forward, reverse
		Multi-segment speed		can set 7 steps speed at most(using multi-function or program running)
		Multi-segment acceleration		At most 8 steps acceleration can be set (using multi function terminals or program running.)
		instant stop		Interrupt controller's output.
		traverse running		Program control running
		jog		running in low speed
		fault reset		When the protection function is affective, system can reset fault state automatically.
		PID feedback signal		DC 0~10V, DC 1~5V, DC 0~20mA, DC 4~20mA
running	Output signal	running state		motor state display, stop, accelerate/decelerate, seven-speed, program running state
		fault output		relay fault output: AC 250V 5A, DC 30V 5A
		analog output		2 analog output, 8 signals could be selected: frequency, current, voltage, temperature, etc, the output signal range is 0~10V/0~20Ma.
		output signal		6 output signals, each one with 32 signals for option.
	running function			Limit frequency, skip frequency, torque difference compensate, reverse protection, automatic adjustment, PID control
	DC brake			On base of non-OC, internal PID can regulate braking current to ensure enough braking torque.
Protection function	inverter protection			Over voltage, under voltage, over current, over load, overheat, over current stall, over voltage stall, phase loss (options), external fault, communication fault, PID feedback abnormity, PG fault.
	IGBT temperature display			Display of current IGBT temperature
	inverter fan control			Temperature of starting the fan can be set. (options)
	restart after momentary power loss			less than 15ms:continue running More than 15ms:automatic inspection of motor's speed, restart after transient power down.
	speed starting pursue mode			inverter pursue motor speed automatically before starting
	parameter protection function			protect inverter's parameter by setting password and decode

 

PI7800 SERIES AC drives