KE300F Open-loop Permanent Magnet Synchronous Drive 2021

Shenzhen MICNO Electric Co, Ltd. has been a public company of NEEQ in China with stock code 839477, which specializes in R&D, manufacture, sale and service of AC drive/VFD/VSD, Solar pumping inverter and other industrial automation products.

With the world-leading sensorless current vector control technology (SVC) for synchronous motor, KE300F can accurately identify the motor parameters, dynamically estimate the rotor speed and pole position, and can easily drive all types of permanent magnet synchronous motors (SPM & IPM). KE300F can be widely used for the synchronous motor driving applications where better speed control and low-frequency torque are required.We also provide pmsm motor drive you can choose.

Features of KE300F Open-loop Permanent Magnet Synchronous Drive
Leading synchronous motor sensorless vector control (SVC)

With the world-leading sensorless vector control technology (SVC) for synchronous motor, capable of easily driving all types of permanent magnet synchronous motors (SPM & IPM) with no need encoder feedback.

Enhanced over-excitation regulation

With enhanced over-excitation regulation, providing fast stop with no need for braking resistor.

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.

Ultra-high speed flux-weakening control

With ultra-high speed flux-weakening control, the max. frequency could be up to 500Hz (SVC), easy for the applications requiring high speed.

Excellent design and superb manufacturing process

With large design margin for key components and PCB;

Adopting industry-leading automatic spraying and strict automatic testing standards, making sure more stable and reliable products;

With optimized control algorithms and comprehensive protection functions, making more outstanding performance of the complete product.

Specification of KE300F Open-loop Permanent Magnet Synchronous Drive

Item Technical Index Specification
Input Input voltage 1AC 220V±15%，3AC 220V±15%，3AC 380V±15%，3AC 660V±15%
Input frequency 47~63Hz
Output Output voltage 0～rated input voltage
Output frequency V/f control: 0~3000Hz
Sensorless vector control: 0~300Hz
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, PID
setting, etc. These frequency settings can be combined & switched in
various modes.
Overload capacity G model: 150% 60s, 180% 10s, 200% 3s
Starting 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 * 0.05%
Torque boost Automatically torque boost; manually torque boost: 0.1%~30.0%
V/f curve Three types: linear, multiple point and square type (1.2 power, 1.4
power, 1.6 power, 1.8 power, square)
Acceleration/decele ration 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: 0.0Hz~maximum frequency
Jog acceleration/deceleration time: 0.1s~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 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
Function Common DC bus Common DC bus for several inverters, energy balanced automatically
Torque control Torque control without PG
Torque limit “Rooter” characteristics, limit the torque automatically and prevent
frequent over-current tripping during the running process
Wobble frequency control Multiple triangular-wave frequency control, special for textile
Timing/length/counting control Timing/length/counting control function
Over-voltage & over-current stall control Limit current & voltage automatically during the running process,
prevent frequent over-current & over-voltage tripping
Fault protection function 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
Input/output
terminals Input terminals Programmable DI: 7 on-off inputs, 1 high-speed pulse input
2 programmable AI: AI1: 0～10V or 0/4～20mA
                                   A12: 0～10V or 0/4～20mA
Output terminals 1 programmable open collector output: 1 analog output (open collector
output or high-speed pulse output)
2 relay output
2 analog output: 0/4~20mA or 0~10V
Communication terminals Offer RS485 communication interface, support MODBUS-RTU
communication protocol
Human machine interface LED display Display frequency setting, output frequency, output voltage, output
current, etc.
Multifunction key QUICK/JOG key, can be used as multifunction key
Environment Ambient temperature -10℃～40℃, derated 4% when the temperature rise by every 1℃
(40℃～50℃).
Humidity 90%RH or less (non-condensing)
Altitude ≤1000M: output rated power, ＞1000M: output derated
Storage temperature -20℃～60℃
Storage environment Indoor, no direct sunlight, dust, corrosive gas, flammable gas, oil mist, steam, dripping water, salt, vibration