AC Variable Frequency Inverter Drive with Tension Control

• Certification: CE
• Protection: Shock Resistance
• Installation: Hanging
• Housing: Plastic
• Transport Package: Carton Box/Wood
• Trademark: VEICHI
• Model NO.: VEICHI AC200T
• Origin: Suzhou, China
• Production Capacity: 600, 000 PCS/Year

Product Description

>>> AC200T Special Inverter for tension control Overview

AC200-T special frequency converter for tension control keeps the tension constant by controlling the output torque and automatically calculating the roll diameter. No need to install a tension sensor, no need for external feedback signal of current position or current tension. In most applications, it is not even necessary to install a speed feedback encoder to accurately provide constant tension and ensure that the thickness or thickness of the processed material is uniform.

1. Using the torque recognition algorithm, the output torque has high precision and small torque ripple.
2. Adopt intelligent roll diameter recognition, with high recognition accuracy and strong anti-disturbance ability.
3. It has strong adaptability to the diameter of rewinding and unwinding reel, smooth starting, and stable tension at high and low speeds.
4. The built-in professional friction compensation module fundamentally ensures that the tension control characteristics of the front and back tension are consistent during material processing.

>>> Rich functions and excellent performance

1. Friction compensation, the tension-specific inverter has dynamic and static friction compensation for the mechanical system, which can optimize the control effect of tension and improve the stability and response speed of the tension system.
2. Zero-speed tension, the special frequency converter for tension can provide the tension value that can be automatically identified and set for the on-site zero-speed state to ensure that the on-site operation and zero-speed require different tension.
3. Other functions, stop and brake signal output, material break detection, rewind/unwind frequency limit, etc.

>>> Tension special function

1. Taper coefficient, tension-specific inverters are aimed at the occasions where the tension decreases with the increase of the coil diameter. The taper coefficient can be set to realize the flatness of the winding to achieve better forming effects.
2. Automatic roll change, the tension-specific inverter has a wealth of automatic roll change functions, which can realize automatic roll change without stopping at high speed, which greatly improves production efficiency.

>>> Multiple roll diameter calculation method

The V in the upper head represents the linear velocity of the traction, W represents the angular velocity of the winding reel, R represents the winding radius, and D represents the winding diameter.

>>> Linear velocity method

AC200T tension control special frequency converter can obtain accurate winding diameter through the linear speed of the previous stage, its own angular speed, and the mechanical speed ratio.

>>> Thickness integral method

According to the thickness of the material, the number of rotations of the installation reel is accumulated to obtain the material reel diameter. AC200T tension control special frequency converter accumulates the number of turns of the reel through the encoder, to obtain the diameter of the winding, without adding external proximity switches and several turns of devices.

>>> Speed torque response fast

Speed rigidity: Sudden 100% load and sudden unload at 40Hz, the recovery time is within 10ms.

Torque response: The load is not mechanically locked. The AC200T given torque is suddenly increased from 0% to 100% and suddenly reduced from 100% to 0%, and the torque response time is within 10ms.

>>> Industry electrical system solutions

Linear speed method application: the front-end machinery provides material traction to determine the material linear speed, and the material tension is determined by AC200T winding. The coil diameter can be calculated by the given linear speed of the traction.

Thickness method application: The front end machine does not provide a traction mechanism to determine the line speed, the material line speed is directly determined by the front motor, and the material tension is determined by the AC200T winding. The winding diameter of this scheme can be calculated by the lap counting pulse provided by the encoder, or an external lap counting device can be added.

>>> Industrial Applications for AC200T Special Inverter for Tension Control

Applications:Industrial production requires strip or wire to maintain constant tension.

>>> Specifications

Project		Specification
Power range		400 W-630,000 W
Power input	Voltage and frequency	Single-phase 220V 50/60Hz Three-phase 380V 50/60Hz; Three-phase 220V 50/60Hz Three-phase 660V 50/60Hz
		Three phase1140V  50/60Hz
	Allow fluctuation	Voltage imbalance rate: <3%; Frequency: ±5%; Distortion rate meets IEC61800-2 requirements
	Closing impulse current	Less than rated current
	Power factor	≥0.94 (with DC reactor)
	Inverter efficiency	≥96%
Output	The output voltage	Output under rated conditions: 3-phase, 0~input voltage, error less than 5%
	Output frequency range	Type G: 0~600Hz
	Output frequency accuracy	±0.5% of maximum frequency value
	Overload capacity	Type G: 150% rated current for 1 minute, 180% rated current for 10 seconds, 200% rated current for 0.5 seconds
Main control performance	Motor control mode	V/F control without PG, vector control without PG, V/F control with PG, vector control with PG
	Modulation	Optimize space vector PWM modulation
	Carrier frequency	0.7~16.0kHz
	Speed control range	Vector control without PG, rated load 1:100; vector control with PG, rated load 1:1000
	Steady-state speed accuracy	Vector control without PG: ≤2% of rated synchronous speed; vector control with PG: ≤0.05% of rated synchronous speed
	Starting torque	Vector control without PG: 150% rated torque at 0.5Hz; Vector control with PG: 200% rated torque at 0Hz
	Torque response	Vector control without PG: <20ms; Vector control with PG: <10ms
	Frequency accuracy	Digital setting: maximum frequency×±0.01%; analog setting: maximum frequency×±0.2%
	Frequency resolution	Digital setting: 0.01Hz; Analog setting: maximum frequency×0.05%
Basic product function	DC braking capability	Starting frequency: 0.00~50.00Hz; Braking time: 0.0~60.0s; Braking current: 0.0~150.0% of rated current
	Torque boost	Automatic torque increase 0.0%~100.0%; manual torque increase 0.0%~30.0%
	V/F curve	Four methods: linear torque characteristic curve, self-set V/F curve, reduced torque characteristic curve (1.1~2.0 power), square V/F curve
	Acceleration and deceleration curve	Two ways: linear acceleration and deceleration, S curve acceleration and deceleration
		Four sets of acceleration and deceleration time, the time unit is 0.01s, the longest is 650.00s
	Rated output voltage	Using the power supply voltage compensation function, the rated motor voltage is 100%, which can be set in the range of 50 to 100% (the output cannot exceed the input voltage)
	Automatic voltage adjustment	When the grid voltage fluctuates, it can automatically keep the output voltage constant
	Automatic energy saving operation	Under V/F control mode, the output voltage is automatically optimized according to the load to realize energy-saving operation
	Automatic current limit	Automatically limit the current during operation to prevent frequent over-current fault trips
	Instantaneous power failure processing	In case of instantaneous power failure, uninterrupted operation is realized through bus voltage control
	Standard function	PID control, speed tracking and restart after power failure, jump frequency, frequency upper and lower limit control, program operation, multi-speed, RS485, analog output, frequency pulse output
	Frequency setting channel	Keyboard digital setting, keyboard potentiometer, analog voltage terminal VS, analog voltage/current terminal AI, analog current terminal AS, communication setting and multi-channel terminal selection, main and auxiliary channel combination, expansion card, can be switched in various ways
	Feedback input channel	Voltage terminal VS, voltage/current terminal AI, current terminal AS, communication setting, pulse input PUL
	Run command channel	Operation panel setting, external terminal setting, communication setting, expansion card setting
	Input command signal	Start, stop, forward and reverse rotation, jog, multi-speed, free stop, reset, acceleration and deceleration time selection, frequency setting channel selection, external fault alarm
	External output signal	2 relay outputs, 1 collector output, 1 AO output can be selected as 0~10V or 4~20mA output, 1 AO output can be selected as 0~10V or 4~20mA or frequency pulse output output
Protective function		Overvoltage, undervoltage, current limit, overcurrent, overload, electronic thermal relay, overheating, overvoltage stall, data protection, fast protection, input and output phase loss protection
Keyboard display	LED display	Single line 5-digit digital tube display	It can monitor 1 inverter status
		Dual-line 5-digit digital tube display	It can monitor the status of 2 inverters
	Parameter copy	The function code information of the inverter can be uploaded and downloaded to realize fast parameter copy
	Status monitoring	All parameters of the monitoring parameter group such as output frequency, given frequency, output current, input voltage, output voltage, motor speed, PID feedback quantity, PID given quantity, module temperature, etc.
	Error alarm	Overvoltage, undervoltage, overcurrent, short circuit, phase loss, overload, overheating, overvoltage stall, current limit, data protection damaged, current fault operating status, historical fault
Surroundings	Installation site	If the altitude is lower than 1000 meters, derating for use above 1000 meters, derating by 1% for every 100 meters;
		No condensation, icing, rain, snow, hail, etc., solar radiation less than 700W/m2, pressure 70~106kPa
	Temperature and humidity	from -10ºC to +50ºC, derating can be used above 40ºC, the maximum temperature is 60ºC (no-load operation)
		5% ~ 95%RH(No condensation)
	vibration	When 9~200Hz,5.9m/s2(0.6g)
	Storage temperature	-30 ~ +60ºC
	Installation method	Wall-mounted, vertical cabinet
	Protection level	IP20
	Cooling method	Forced air cooling

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