Veichi AC80B Medium Voltage Frequency Inverter

AC80B medium voltage VFD drive is developed on the basis of advanced platform of AC80 that it has stable and high working performance. Below are its main features:

1. Professional Design

a. It is developed for the second time on the mature platform of AC80.

b. Designed with optimized structure that its stability and service life has been greatly improved.

c. In order to optimize the inner structure of control cabinet, all the models above 93KW adopts upper-input and bottom-output wiring method.

d. All the models above 30KW are all built-in with DC reactor in order to reduce the input harmonic, improve input power factor and protect your grid. All the series have been reserved with DC reactor connection terminal.

2. Strong Environmental Adaptability

a. All the standard products are painted with three-proofing lacquer which is imported from Germany. For the occasions of excessive humidity or dust, we provide special protection or treatment measures for the sake of meeting long-term stable running requirements in harsh environment.

b. It adopts air duct isolation technique which ensures it can work in severe industrial application environment.

c. For special applications, we can provide it to customers with sealed design.

3. Powerful Communication Function

a. It adopts international standard ModBus communication protocol. Users can set control command, running frequency, related parameters, status and more actions via PC, PLC, and master frequency converter to achieve centralized control, for meeting application requirements perfectly.

b. AC80B series support bus expansion, through options, it can even support the Profibus protocol.

4. Strong Anti-Interference Design

a. It supports wide working voltage range. When the voltage is low, it can guarantee the load capacity through modulation technique.

b. It meets industrial standards in power surge, power grid noise and static reactive immunity.

c. The control power and bus power has been separated. Control power adopts separate power supply via isolation transformer, and standard-designed filter circuit.

5. Powerful and Complete Protection Functions

Below table displays the main technical specifications about AC80B VFD driver. If you need to learn more details such as the installations, fault diagnosis, function parameters and more, please navigate to the data download column to download its user manual to learn more.

Items			Description
Power input	Voltage,frequency		Single phase220V 50/60Hz; Three phase380V 50/60Hz; Three phase220V 50/60Hz; Three phase660V 50/60Hz; Three phase1140V 50/60Hz
	Allowable fluctuations		Voltage:320V~440V; voltage unbalance rate: 3%; Frequency:±5% aberration rate: as IEC61800-2 required
	Inrush current		Lower than rated current
	Power factor		=0.94(with DC reactor)
	Efficiency		=96%
Output	Output voltage		Output under rated condition:3 phase, 0~input voltage, inaccurancy 5%
	Output frequency range		G type:0-320Hz
	Output frequency accuracy		Max frequency ±0.5%
	Overload capacity		G type:150% rated current/1 min,180% rated current/10s, 200% rated current/0.5s
Main Control performance	Motor control mode		VC without PG, VC with PG, V/F without PG, V/F with PG
	Modulate mode		Optimized SVPWM mode
	Carrier frequency		0.6~15.0kHz,randomized carrier-wave
	Speed range		VC without PG: rated load 1:100 VC with PG: rated load 1:1000
	Steady speed accuracy		VC without PG: =1% rated synchronized speed VC with PG: =0.02% rated synchronized speed
	Starting torque		Flux VC without PG: when 0.5Hz, 180% rated torque Flux VC with PG: when 0Hz, 200% rated torque
	Torque response		Flux VC without PG: =20ms Flux VC with PG: =10ms
	Torque control accuracy		Flux VC without PG: ±10% Flux VC with PG: ±5%
	Frequency accuracy		Digit setting:max frequency×±0.01% Analog setting:max frequency×±0.2%
	Frequency resolution		Digit setting:0.01Hz Anolog setting:max frequency×0.05%
Basic functions	DC braking capacity		Starting frequency:0.00~50.00Hz Braking time:0.0~60.0s Braking current:0.0~150.0% rated current
	Torque upgrade capacity		Auto torque upgrade 0.0%~100.0% Manual torque ungrade 0.0%~30.0%
	V/F curve		5 modes: one user set V/F curve mode, one linearity torque characteristic curve and three drop torque characteristic curve (1.3power, 1.7power, 2.0 powers).
	Acceleration/Deceleration curve		2 modes: One linear Acceleration/Deceleration and two S curve Acceleration/Deceleration. Four sets of Acceleration/Deceleration time unit 0.01s selectable longest time: 650.00s.
	Rated output voltage		Rely on power supply voltage compensate function, while motor rated voltage is 100%, set it at the range of 50-100%(output can not over input voltge).
	Voltage auto-adjust		While power supply voltage fluctuates,it can auto-keep constant output voltage.
	Energy-saving running		According to load situation, auto-optimize output voltage to save energy.
	Auto-limit current		Auto-limit the current while running to prevent overcurrent break trouble.
	Instant power off treatment		While instant power off, realize continual operation by bus voltage control.
	Standard functions		PID control, speed track, power off restart, jump frequency, upper/lower frequency limit control, program operation, multi-steps speed, swing frequency running, RS485, analog output, frequency impulse output.
	Frequency set channels		Keyboard digital set, keyboard, potentionmeter, analog voltage terminal VS1/VS2, analog current terminal AS, communication given and multi channels terminal selection, master-slave channels combination.
	Feedback input channel		Voltage terminal VS1/VS2, current terminal AS, communication given, pulse input PUL.
	Running command channel		Operation panel given, external terminal given, communication given.
	Input command signal		Start, stop, FOR/REV, JOG, multi-step speed, free stop, reset, Acceleration/Deceleration time selection, frequency set channel selection, exterior fault alarm.
	Exterior output signal		One relay output, two collector output, 0~10V output,4~20mA output,frequency pulse output.
Protection function			Overvoltage, undervoltage, current limit, overcurrent, overload, electric thermalrelay, overheat, overvoltage stall, data protection.
Keyboard display		LED display	Single file 4 digital tube display	Can monitor one state variable
			Two file 4 digital tube display	Can monitor two state variables
		Parameter copy	Can upload or download function code information of inverter to realize fast parameter copy.
		State monitor	Output frequency, given frequency, output current, input voltage, output voltage, motor speed, PID feedback, PID given value, module temperature, input/output terminal condition.
		Fault alarm	Over-voltage, under-voltage, over-current, short circuit, open phase, overload, overheat, over-voltage speed lost, current limit, or data protection is destroyed; Fault running state; Fault history.
Environment		Install place	Indoor, altitude =1000m, no corrosive air or direct sunshine
		Temperature, humidity	-10 ~ +40? 20%—90%RH(no condensation)
		Vibration	Under 20Hz=0.5g
		Store temperatue	-25—+65?
		Installation	Hanging type, cabinet type
		Protection	IP20
		Cooling mode	Forced cooling