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.
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.
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.
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.
Please learn the main technical specifications of AC90 high quality low voltage inverter from the following table:
Items |
Description |
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Power |
Voltage,frequency |
Single phase 220V 50/60Hz, what is 3 phase and single phase? |
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Allowable fluctuations |
Voltage: 320V~440V; voltage unbalance rate: 3%; |
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Inrush current |
Lower than rated current |
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Power factor |
=0.94(with DC reactor) |
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Efficiency |
=96% |
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Output |
Output voltage |
Output under rated condition: 3 phase, 0~input voltage, inaccurancy 5% |
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Output frequency range |
G type:0-320Hz |
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Output frequency accuracy |
Max frequency ±0.5% |
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Overload capacity |
G type:150% rated current/1 min,180% rated current/10s,200% rated current/0.5s |
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Main |
Motor control mode |
VC without PG, VC with PG, V/F without PG, V/F with PG |
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Modulate mode |
Optimized SVPWM mode |
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Carrier frequency |
0.6~15.0kHz,randomized carrier-wave |
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Speed range |
VC without PG: rated load 1:100 |
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Steady speed accuracy |
VC without PG: =1% rated synchronized speed |
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Starting torque |
Flux VC without PG: when 0.5Hz, 180% rated torque |
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Torque response |
Flux VC without PG: =20ms |
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Product basic functions |
Tension control |
Tension setting calculation;Tension tape calculation |
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Roll diameter calculation |
Linear speed calculation method;Thickness calculation method; Time integral calculation method |
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Torque control |
Torque setting calculation; Torque ACC/DEC time; Torque compensation; Speed limit |
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Speed control |
Frequency setting; ACC/DEC time setting; Run direction setting; Speed setting; Torque setting |
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Motor parameter study |
Rotate auto studay; Static auto studay |
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Auto voltage adjust |
Auto keep stable output voltage while the net voltage waves |
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Auto energy saving run |
Auto output best voltage according to actual load need to save energy |
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Auto limit current |
Auto limit current in running to prevent |
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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. |
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Feedback input channel |
Voltage terminal VS1/VS2, current terminal AS, communication given, pulse input PUL. |
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Running command channel |
Operation panel given, external terminal given, communication given. |
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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. |
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Exterior output signal |
One relay output, two collector output, 0~10V output,4~20mA output,frequency pulse output. |
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Protection function |
Overvoltage, undervoltage, current limit, overcurrent, overload, electric thermalrelay, overheat, overvoltage stall, data protection. |
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Keyboard |
LED display |
Single file 4 digital tube display |
Can monitor one state variable |
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Two file 4 digital tube display |
Can monitor two state variables |
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Parameter copy |
Can upload or download function code information of inverter to realize fast parameter copy. |
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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. |
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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. |
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Environ |
Install place |
Indoor altitude =1000m,no corrosive air or direct sunshine |
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Temperature, |
-10 ~ +40°C (hanging type) |
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Vibration |
Under 20Hz=0.5g |
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Store temperatue |
-25 — +65°C |
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Installation |
Hanging type, cabinet type |
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Protection |
IP20 |
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Cooling mode |
Forced cooling |