KE300 is launched based on the perfect combination of years of experience and advanced drive technology.
According to the perfect understanding to customers’ requirements, KE300 integrates with sensorless vector control, V/f control, torque control and soft start
functions, widely applied in pump & fan, and the applications which require high speed control accuracy, rapid torque response and high performance at low frequency.
Specifications of KE300 are as follows.
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Input
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Input voltage
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1AC 220V±15%，3AC 220V±15%，3AC 380V±15%，3AC 660V±15%
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Input frequency
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47~63Hz
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Output
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Output voltage
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0～Rated voltage
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Output frequency
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V/f contol：0~3000Hz SVC：0~300Hz
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Control
Feature
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Control mode
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V/f , SVC, Torque control
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Operation command mode
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Keypad control, Terminal control, Serial communication control
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Frequency setting mode
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Digital setting, analog setting, pulse frequency setting, serial communication setting, multi-step speed setting & simple PLC, PID setting, etc. These frequency settings can be combinated & switched in various modes.
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Overload capacity
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G model: 150% 60s, 180% 10s, 200% 3s
P model: 120% 60s, 150% 10s, 180% 3s
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Starting torque
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0.5Hz/150% (SVC)，1Hz/150% (V/f)
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Speed adjustment range
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1:100 (SVC)，1:50(V/f)
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Speed control precision
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±0.5%（SVC）
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Carrier frequency
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1.0--16.0kHz, automatically adjusted according to temperature and load characteristics
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Frequency accuracy
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Digital setting: 0.01Hz
Analog setting: maximum frequency ×0.05%
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Torque boost
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Automatically torque boost; manually torque boost : 0.1%~30.0%
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V/f curve
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Three types: straight line, multiple point and square type（1.2 power, 1.4 power, 1.6 power, 1.8 power, square）
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ACC/DEC mode
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Linear/S curve; four kinds of acceleration/deceleration time, range: 0.1s~3600.0s
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DC braking
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DC braking when starting and stopping
DC braking frequency: 0.0Hz~maximum frequency, braking time: 0.0s~100.0s
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Jog operation
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Jog operation frequency: 0.0Hz~maximum frequency
Jog acceleration/deceleration time: 0.1s~3600.0s
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Simple PLC & multi-step
speed operation
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Max. 16 steps speed running via built-in PLC or control terminal
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Built-in dual PID
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Built-in PID control to easily realize the close loop control of the process parameters (such as pressure, temperature, flow, etc.)
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Automatic voltage regulation
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Keep output voltage constant automatically when input voltage fluctuating
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Control
Function
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Common DC bus
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Common DC bus for several inverters, energy balanced automatically
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Torque control
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Torque control without PG
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Torque limit
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“Rooter” feature: limit torque automatically and prevent frequent over-current tripping when running
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Wobble frequency control
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Multiple triangular-wave frequency control, special for spinning
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Timing/length/
counting control
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Timing/length/counting control function
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Over-voltage & over
currentstall control
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Limit current & voltage automatically when running, prevent frequent over-current & over-voltage tripping
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Fault protection function
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Up to 30 fault protections including over-current, over-voltage, under-voltage, overheating, default phase, overload, shortcut, etc., can record the detailed running status during failure and has fault automatic reset function
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Terminals
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Input terminals
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Programmable DI: 7 on-off inputs,
1 high-speed pulse input
2 programmable AI:
AI1: voltage -10～10V
A12: voltage 0～10V or current 0/4～20mA
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Output terminals
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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 0~10V
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Communication terminal
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Offer RS485 communication interface, support MODBUS-RTU communication protocol
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Human
&Machine
interface
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LED display
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Display frequency setting, output frequency, output voltage, output current, etc.
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Multifunction key
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QUICK/JOG key, can be used as multifunction key
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Powerful host software
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Support upload, download and real time display between inverter and PC
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Enviorment
Limit
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-10℃～40℃, derated 4% when the temperature rise by each1℃ (40℃～50 ℃).
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Humidity
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90%RH or less (non-condensing)
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Altitude
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≤1000M: output rated power, ＞1000M: output derated
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Storage temperature
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-20℃～60℃
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Storage atmosphere
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Indoor, without direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip, salt, vibration, etc.
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