Low voltage variable frequency drivesSinopak KE300 sensorless vector control inverter is developed based on the perfect integration of years of engineering experience and advanced drive technology.KE300 integrate sensorless vector control, V/f control, torque control and soft start functions, it is widely applied in pump & fan etc application fields which require high speed control accuracy, rapid torque response and high performance at low frequency.Technical SpecificationsInput voltage:1AC 220V±15%, 3AC 220V±15%, 3AC 380V±15%, 3AC 660V±15%Input frequency:47~63Hz Output voltage:0-Rated voltage Output frequency:V/f control: 0~3000Hz SVC:0~300Hz Control mode: V/f , SVC, Torque control Operation command mode: Keypad control, Terminal control, Serial communication controlOperation command mode:Digital setting, analog setting, pulse frequency setting, serial communication setting, multi-step speed setting & simple PLC, PID setting, etc. These frequency settings can be combined & switched in various modes.Overload capacity:G model: 150% 60s, 180% 10s, 200% 3s P model: 120% 60s, 150% 10s, 180% 3sStarting torque:0.5Hz/150% (SVC),1Hz/150% (V/f)Speed adjustment range: 1:100 (SVC),1:50(V/f)Speed control precision:±0.5%(SVC)Carrier frequency:1.0--16.0kHz, automatically adjusted according to temperature and load characteristics Frequency accuracy:Digital setting: 0.01Hz Analog setting: maximum frequency Ã0.05% Torque boost:Automatically torque boost; manually torque boost : 0.1%~30.0%V/f curve:Three types: straight tiple point and square type(1.2 power, 1.4 power, 1.6 power, 1.8 power, square)ACC/DEC mode:curve; four kinds of acceleration/deceleration time, range: 0.1s~3600.0sDC braking:DC braking when starting and stopping DC braking frequency: 0.0Hz~maximum frequency, braking time: 0.0s~100.0sJog operation:Jog operation frequency: 0.0Hz~maximum frequency Jog acceleration/deceleration time: 0.1s~3600.0sSimple PLC & multi-step speed operation: Max. 16 steps speed running via built-in PLC or control terminalBuilt-in dual PID:Built-in PID control to easily realize the close loop control of the process parameters (such as pressure, temperature, flow, etc.)Automatic voltage regulation: Keep output voltage constant automatically when input voltage fluctuatingCommon DC bus:Common DC bus for several inverters, energy balanced automatically Torque control:Torque control without PGTorque limit:"Rooter" feature: limit torque automatically and prevent frequent over-current tripping when running Wobble frequency control:Multiple triangular-wave frequency control, special for spinning Timing/length/counting control:Timing/length/counting control functionOver-voltage & over current stall control: Limit current & voltage automatically when running, prevent frequent over-current & over-voltage tripping Fault protection function:Up to 30 fault protections including over-current, over-voltage, under-voltage, overheating, default se, overload, shortcut, etc., can record the detailed running status during failure and has fault automatic reset function Input terminals:Programmable DI: 7 on-off inputs, 1 high-speed pulse input 2 programmable AI: AI1: voltage -10-10V A12: voltage 0-10V or current 0/4-20mAOutput terminals:1 programmable open collector output: 1 analog output (open collector output or high-speed pulse output) 2 relay outputs 2 analog output: 0/4~20mA or 0~10VCommunication terminal:Offer RS485 communication interface, support MODBUS-RTU communication protocol LED display: Display frequency setting, output frequency, output voltage, output current, etc. Multifunction key: QUICK/JOG key, can be used as multifunction key Powerful host software: Support upload, download and real time display between inverter and PCAmbient temperature:-10 degree - 40 degree, derated 4% when the temperature rise by each1 degree (40degree-50degree). Humidity:90%RH or less (non-condensing)Altitude:less than 1000M: output rated power, more than 1000M: output deratedStorage temperature:-20 degree - 60 degreeStorage atmosre:Indoor, without direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip, salt, vibration, etc.For more product information, please feel free to Ashley by