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Input
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Input voltage
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1AC/3AC 220V±15%, 3AC 380V±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 input voltage
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Output frequency
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KE300X: V/f control: 0~3000Hz
Sensorless vector control: 0~300Hz
KE300B: 0~400Hz
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Control Features
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Control mode
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V/f control(KE300X & KE300B-S2)
Sensorless vector control (KE300X & KE300B-T4)
Torque control (KE300X)
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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 combined & switched in various modes.
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Overload capacity
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150% 60s, 180% 10s, 200% 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: linear, multiple point and square type (1.2 power, 1.4 power, 1.6 power, 1.8 power, square)
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Acceleration/deceleration mode
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Straight line/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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It can realize a maximum of 16 segments speed running via the built-in PLC or control terminal.
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Built-in 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” characteristics, limit the torque automatically and prevent frequent over-current tripping during the running process
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Wobble frequency control
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Multiple triangular-wave frequency control, special for textile
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Timing/length/
counting control
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Timing/length/counting control function
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Over-voltage & over-current stall control
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Limit current & voltage automatically during the running process, 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 & has fault automatic reset function
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Input/
output terminals
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Input terminals
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Programmable DI: 5 on-off inputs (KE300B: 4), 1 high-speed pulse input
1 programmable AI1: 0~10V or 0/4~20mA
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Output terminals
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1 programmable open collector output: 1 analog output (KE300X: open collector output or high-speed pulse output)
1 relay output
1 analog output: 0/4~20mA or 0~10V
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Communication terminals
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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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Environment
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Ambient temperature
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-10℃～40℃, derated 4% when the temperature rise by every 1℃ (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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