low frequency solar inverter,variable frequency drive solar inverter

Specifications

1,Three Phase Frequency Inverter
2,Unique design,advanced technology
3,Absolutely reasonable price
4,Energy Saver

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SV8-4T  Sensorless Three Phase Frequency Inverter
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Specifications

 

SV8-4T SensorlessThree Phase Frequency Inverter is using high performance digital signal processor and optimizing control algorithm, provides fans and pumps etc with high speed ,flexible, safety control

 

1 High-performance non-inductive vector control, has the very good low frequency torque
2 Mini design,  simplicity of installation , easy to operate,  highly reliable.
3 Suitable for all kinds of OEM applications
4 Wide industry application . to expand special function according to different industries.
5 V/F curve &multi-inflection point setting, flexible configuration
6 Have strong ability of overload: 150% rated current 1 minute, 180% rated current for 3 seconds

 

When communication function: with RS485 standard communication interface, supports both ASCII and RTU format MODBUS communication protocol

 

Item		Specifications
Input	Rated voltage and frequency	Single-phase 220V, three-phase 220V,three-phase 380V; 50Hz/60Hz
	Variable allowable value	Voltage: -20% +20 Voltage unbalance: <3% Frequency: ±5%
Output	Rated voltage	2-200/220V /380V
	Frequency range	0Hz500Hz
Main Control Function	Overload capability	150% for 1 min, 180% for 3s,
	Control mode	Space voltage vector SVPWMcontrol
	Frequency accuracy	Digital setting: Max frequency ×±0. 01% Analog setting: Max frequency ×±0. 2%
	Frequency resolution	Digital setting: 0.01Hz Analog setting: Max frequency ×0.1%
	Torque rise	Auto torque rise,manual torque rise 0.1%30.0%
	Jogging	Jogging frequency range: 0.1Hz50.00Hz,jogging acceleration and deceleration time: 0.1-60.0s.
	Built-in PID	It is convenient for forming closed loop control system, applicable for course control like pressure and flow, etc.
	Multi-speed operating	Realize multi-speed running by built-in PLC or control terminal.
	Weaving wobble frequency	Can get wobble frequency of adjustable central frequency
	Auto voltage adjustmen	When main voltage changes, the output voltage may be kept constant by adjusting PWM output (AVR function).
	Auto energy-saving running	According to load condition, V/F curve can be optimized automatically to get the aim of energy-saving running.
	Auto current limiting	Limit in-service current automatically, so as to avoid tripping for fault caused by frequent over current.
	Operator Setting Method	Press or ∧ or ∨ to set
Operation Function	Running command channel	3 kinds of control mode: keypad control, analog terminal control, serial communication control
	Frequency source selection	Digital set, analog voltage set, analog current set, pulse input set, serial communication port set; through various method to combination switch.
Protection Function	-	overvoltage protection,overcurrent protection,over temperature protection,undervoltage, overload
Operation environment	Operating site	Indoor, sea level below 1000m,no dust, corrosive gas, and direct sunlight
	Ambient temperature	-10°C~+40°C
	Humidity	<90%RH (no condensing)
	Storage temperature	-25°C~+60°C

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Application

 

1 Mining machinery, printing machinery, drawing machine, textile, paper making, metallurgy, food, chemical, transmission, wire and cable, ceramic industry, building materials, packaging machinery, tobacco, and other sites and industries.
2 Apply for kinds of OEM.

 

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Service offered by Wenzhou WOSN Electric Co., Ltd.

1. Technical consultation during pre-sale, sale and after-sale.
2. 12 months guarantee period and whole life-span maintenance.
3. OEM and ODM.
4. Energy saving reconstruction solution design.

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Our certificate