KE300A Series High Performance Open Loop vector control inverter
widely used for the asynchronous
motor driving where better speed control and low-frequency torque are required . KE300A is built on TI's powerful DSP-based motor control chip, with the adoption of the sensorless current vector control (SVC) and open-loop torque control
(TC). KE300A enhances its 1 hp ac motor speed control
reliability to meet the requirements of environment adaptability, customized and industrialized design with more optimized functions, more flexible applications and more stable performance.
Features of KE300A Series Open Loop Vector Control inverter
Excellent design and superb manufacturing process
Powerful hardware speed tracking
With powerful hardware speed tracking, easily responding to the applications with large inertia requiring quick start.
Accurate parameter identification
With an optimized motor parameter autotuning model, providing more precise identification.
Enhanced oscillation suppression
Fast current limiting
With fast current limiting function, easily responding to the conditions with sudden load, greatly reducing the probability of inverter's frequent overcurrent fault.
Dual PID switching
With dual PID switching function, adapting to varied complicated conditions with flexibility
Original energy-saving mode
With an original energy-saving mode, when at a light load, reducing the output voltage automatically, making more efficient energy saving.
Optimized V/F separation
Flux-weakening control
frequency could be up to 3000Hz, easy for the applications requiring high speed.
Powerful PC monitoring software, offer RS485 communication interface, support MODBUS-RTU communication protocol.
Applications of KE300A Series Open Loop Vector Control inverter：
Motor, Mine, Machine Tools, Textile, Oil, Other Machineries
Technical Specifications of KE300A Series Open Loop Vector Control inverter
|
Item
|
Technical Index
|
Specification
|
|
Input
|
Input voltage
|
1AC/3AC 220V±15%, 3AC 380V±15%, 3AC 660V±15%
|
|
Input frequency
|
47~63Hz
|
|
Output
|
Output voltage
|
O~rated input voltage
|
|
Output frequency
|
V/f control: 0~3000Hn
|
|
Sensorless vector control: 0~300Hn
|
|
Control Features
|
Control mode
|
V/f control
|
|
Sensorless vector control
|
|
Torque control
|
|
Operation command mode
|
Keypad control
|
|
Terminal control
|
|
Serial communication control
|
|
Frequency setting mode
|
Digital setting, analog setting, pulse frequency setting, serial communication setting, multi-step speed setting & simple PLC, RID 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% 3s
|
|
Starting torque
|
0.5HZ/150% (SVC); IHz/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: 0.01 Hz
Analog setting: maximum frequency * 0.05%
|
|
Torque boost
|
Automatically torque boost; manually torque boost: 0.1 30.0%
|
|
V/f CURVE
|
Three types: linear, multiple points and square type (1.2 power, 1.4 power, 1.6 power, 1.8 power, square)
|
|
Acceleration/deceleration mode
|
Straight line/S curve; four kinds of acceleration/deceleration time, range: 0.1s 〜3600.0s
|
|
DC braking
|
DC braking when starting and stopping
DC braking frequency: 0.0Hz—maximum frequency, braking time: 0.0s—100.0s
|
|
Jog operation
|
Jog operation frequency: O.OHz—maximum frequency
Jog acceleration/deceleration time: 0.1 s—3600.0s
|
|
Simple PLC & multi-step speed operation
|
It can realize a maximum of 16 segments speed running via the built-in PLC or control terminal.
|
|
Built-in RID
|
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 fluctuating
|
