Veichi AC90 Tension Control VFD, Tension Controller

AC90 series is a high performance vector tension control VFD drive which is developed with the latest open loop tension control technique under torque mode. With its advanced torque recognition algorithms, it can automatically compensate inertia and friction which ensures consistent tension control during manufacturing process. It features smart rolling diameter recognition, high recognition accuracy and strong anti-disturbance ability.

tension control system

1. Outstanding Working Performance

Veichi AC90 tension control VFD supports multiple tension control modes, diverse tension given ways, various rolling diameter calculation methods and dynamic compensation modes that it can effortlessly deal with various application occasions. It features high precision in output torque linearity, fast torque response speed and ripple-free output. AC90 can replace the traditional tension control system with enhanced tension control performance.

In OLV: the torque accuracy is ±3%; torque response time is less than 20ms.
In CLV: the torque accuracy is ±2%; torque response time is less than 10ms.

linear velocity method

2. Professional Design

a. AC90 is treated with conformal coatings that it is moisture-proof, dust-proof and mold-proof.

b. Wide voltage range design that it can meet various application scenarios.

c. Independent air duct design that its cooling performance is good.

d. It is simple to replace the fan so users can easily clean and maintain it.

3. Rich Extension Functions

Veichi AC90 tension control frequency inverter is designed with multiple extension ports for optional input card, profibus-DP card, PG feedback card, output expansion card and more, so that it can meet all kinds of control requirements.

components of AC90 tension control VFD

Please learn the main technical specifications of AC90 high quality low voltage inverter from the following table:

Items			Description
Power input	Voltage,frequency		Single phase 220V 50/60Hz, what is 3 phase and single phase? Three phase 380V 50/60Hz Three phase220V 50/60Hz Three phase 660V 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
Product basic functions	Tension control		Tension setting calculation;Tension tape calculation
	Roll diameter calculation		Linear speed calculation method;Thickness calculation method; Time integral calculation method
	Torque control		Torque setting calculation; Torque ACC/DEC time; Torque compensation; Speed limit
	Speed control		Frequency setting; ACC/DEC time setting; Run direction setting; Speed setting; Torque setting
	Motor parameter study		Rotate auto studay; Static auto studay
	Auto voltage adjust		Auto keep stable output voltage while the net voltage waves
	Auto energy saving run		Auto output best voltage according to actual load need to save energy
	Auto limit current		Auto limit current in running to prevent
	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	Ouve-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.
Environ ment		Install place	Indoor altitude =1000m,no corrosive air or direct sunshine
		Temperature, humidity	-10 ~ +40°C (hanging type) -10 ~ +45°C (cabinet type) 20%—90%RH(no condensation)
		Vibration	Under 20Hz=0.5g
		Store temperatue	-25 — +65°C
		Installation	Hanging type, cabinet type
		Protection	IP20
		Cooling mode	Forced cooling