KE600A Series Closed Loop Vector Control VFD

KE600A series is a closed loop vector control VFD developed on the basic of KE300, with more powerful functions, fit for more complex applications.

Integrated with close loop vector control, sensorless vector control, V/f control, torque control and soft start functions, KE600 closed loop vector control VFD has been widely applied in applications which require high speed control accuracy, rapid torque response and high performance at low frequency, such as crane, lift, printing & packaging, winding, etc.

Features
Specifications
Selection table
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Features of KE600A Series Closed Loop Vector Control VFD

Comprehensive parameter identification

With comprehensive parameter identification, simultaneously compatible with dynamic and static identifications for both synchronous motors and

asynchronous motors.

Multi-motor switching

Built-in multiple motor parameters, supporting multi-motor switching.

Modular design, compatible with various expansion cards

KE600A has superior expansion capability. Users can choose PG card, I/O expansion card, MODBUS communication card, injection molding

card, pulse expansion card, according to their actual needs.

Fast dynamic response

Sensorless vector control, dynamic response time<20ms;

Close-loop vector control, dynamic response time<5ms.

High-precision torque control

When close-loop vector control, the torque control accuracy achieving ±5%, easily responding to tension winding control.

High start torque, and super low-frequency load-carrying capability

0.5Hz, 150% start torque (sensorless vector control asynchronous motors)0Hz, 200% startup torque (close-loop vector control asynchronous motors)

Non-stop when instantaneous power off

With the capability of non-stop when instantaneous power off, ensuring the system continuously operate without tripping in case of instantaneous power off.

AVR automatic voltage regulation

When the input voltage is fluctuant, the inverter can automatically keep the constant output voltage.

Excellent close-loop vector control for synchronous motors

With excellent close-loop vector control for synchronous motors, capable of high torque output at zero speed, the speed ratio up to 1:1000.

Technical Specifications of KE600A Series Closed Loop Vector Control VFD

Input	Input voltage	3AC 220V±15%, 3AC 380V±15%, 3AC 660V±15%
Input	Input frequency	47~63Hz
Output	Output voltage	0～Rated voltage
Output	Output frequency	V/f：0~3000Hz, VC：0~300Hz
Control	Control mode	V/f , SVC, VC, Torque control
Feature	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, PID setting, etc. These frequency settings can be combined & switched in various modes.
	Overload capacity	150% 60s, 180% 10s, 200% 3s.
	Starting torque	0Hz/180% (VC); 0.5Hz/150% (SVC)
	Speed adjustment range	1:1000 (VC); 1:100 (SVC)
	Speed control precision	±0.5% (SVC); ±0.02% (VC)）
	Carrier frequency	0.5--16.0kHz, automatically adjusted according to temperature and load characteristics
	Frequency accuracy	Digital setting: 0.01Hz
	Frequency accuracy	Analog setting: maximum frequency ×0.05%
	Torque boost	Automatically torque boost; manually torque boost 0.1%~30.0%
	V/f curve	Three types: straight line, multiple points and square type (1.2 power, 1.4 power, 1.6 power, 1.8 power, square)
	ACC/DEC mode	Linear/S curve; four kinds of ACC/DEC time, range 0.1s~3600.0s
	DC braking	DC braking when starting and stopping
	DC braking	DC braking frequency: 0.0Hz~maximum frequency, braking time: 0.0s~36.0s; Braking current: 0.0%~100.0%
	Jog operation	Jog operation frequency: 0.0Hz~maximum frequency Jog ACC/DEC time: 0.1s~3600.0s
	Simple PLC & multi-step	Max. 16 steps speed running via built-in PLC or control terminal.
	speed operation
	Built-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 fluctuating
Control	Common DC bus	Common DC bus for several inverters, energy balanced automatically
Function	Torque control	Torque control with/without PG
	Torque limit	“Rooter” feature, limit the 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 function
	Over-voltage & overcurrent stall control	Limit current & voltage automatically when running, prevent frequent over-current & over-voltage tripping
	Speed tracking restart	Start the running motor smoothly without impact, protect the safety of motor and load at the most
	Fault protection function	Up to 30 fault protection 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
Special	Motor switching	Two groups of motor parameters to achieve two motors switching
Functions	Spare part	Braking parts, IO extension card, differential input PG card, open collector input PG card, injection molding machine card, communication card, etc.
	Powerful host software	Support KE600 parameter setting and real-time parameter monitor
Terminals	Input terminals	Programmable DI: 7 on-off inputs, 1 high-speed pulse input, can extend 3 inputs*1
		2 programmable AI:
		AI1: voltage -10～10V
		A12: voltage 0～10V or current 0/4～20mA
	Output terminals	1 programmable open collector output: 1 analog output (open collector output or high-speed pulse output), can extend 1 output*1
		1 relay output, can extend 1 output*1
		2 analog output: 0/4~20mA or 0~10V
	Communication terminal*2	Offer RS485 communication interface, support MODBUS-RTU communication protocol
Human	LED display	Display frequency setting, output frequency, output voltage, output current, etc.
&Machine	LED display
interface	Multifunction key	QUICK/JOG key, can be used as multifunction key
Environment	Ambient temperature	-10℃～40℃, derated 4% when the temperature rise by each1℃ (40℃～50 ℃).
Limit	Humidity	90%RH or less (non-condensing)
	Altitude	≤1000M: output rated power, ＞1000M: output derated
	Storage temperature	-20℃～60℃
	Storage atmosphere	Indoor, without direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip, salt, vibration, etc.