Payment & Shipping Terms:
|Communication:||Modbus RTU||Size:||Compact Size, Light Weight|
|Convenient:||Keypad Outgoing||Start Mode:||Multi Start Mode|
|Stop Mode:||Multi Stop Mode||Relay Output:||Programmable Relay Output|
scr soft starter,
thyristor soft starter
Three Phase Thyristor AC380V 280KW Asynchronous Electric Motor Soft Starter Used To Control Fan
Three Phase Thyristor AC380V 280KW Asynchronous Electric Motor Soft Starter Used To Control Fancan start / stop motor smoothly, which avoids issues of shocks between mechanical and electrical caused by direct starting, star / delta starting, auto decompression starting and other traditional start mode.NKS100 Series motor soft starter is a kind of new motor starter and protection devices which combines power electronics technology, microprocessor and automatic control. It can also effectively reduce the starting current and distribution capacity, to avoid capacity investment. Meanwhile, current transformers are integrated in soft starter, users do not need to connect them externally.This product is three in line and six out line.
Description of Terminal
|Terminal No.||Name of terminal||Description|
|Main circuit||1L1, 3L2, 5L3||AC power input terminal||Three-phase AC power supply and bypass contactor|
|2T1, 4T2, 6T3||Soft start output terminal||Asynchronous motor|
|B1, B2, B3||Bypass Contactor||Connected to Contactor|
|Control circuit||X1/1||Analog output-(AO-)||
0~20mA or 4~20mA
Output loaded impedance (150--500Ω)
|X1/4||RUN||Start when X1/4 and X1/3 are short circuited|
|X1/5||STOP||Stop when X1/5 and X1/3 break|
|X1/6||Bypass output relay (K11, K12)||K11-K12 close when output is available and contact capacity AC250V/5A, DC30V/5A|
|X1/8||Fault output relay (K21, K22)||K21-K22 close when output is available and contact capacity AC250V/5A, DC30V/5A|
|X1/11||L||Control power (220VAC)||AC110V--AC220V±15% 50/60Hz|
|COM interface||1, 2||GND||Power GND||Definition of terminal coordinates basic wiring diagram|
|3, 4||A+||COM terminal|
|7, 8||+24V||Power +|
Conditions Of Usage
|Power Supply||Input Voltage||Three-phase 220V/380V/480V/660V AC±15%|
|Adaptive Motor||Squirrel-cage three-phase asynchronous motor|
|Starting Times||It is recommended not to exceed 20 times per hour|
|Control Mode||(1) Operation panel control|
|(2) Operation panel + external control|
|(3) External control|
|(4) External control + COM control|
|(5) COM control|
|Start Mode||(1) Current-limiting start|
|(2) Voltage ramp start|
|(3) Kick start+ current-limiting start|
|(4) Kick start + voltage ramp start|
|(5) Current ramp start|
|(6) Voltage current-limiting double closed-loop start|
|Stop Mode||(1) Soft stop|
|(2) Free stop|
|Protective Function||(1)Open loop protection for external instantaneous stop terminals|
|(2) Over-heat protection for soft starter|
|(3) Protection for too long starting time|
|(4) Input lose phase protection|
|(5) Output lose phase protection|
|(6) Unbalanced three-phase protection|
|(7) Running over current protection|
|(8) Running overload protection|
|(9) Protection for fault parameter setting|
|(10) Incorrect wiring protection of external control stop terminals|
|Ambient||Indoor with good ventilation and free from corrosive gas and conductive dust|
|Altitude||Below 1000m. Need to rise the rated power when the altitude is more than 1000m|
|Humidity||90%RH without dew condensation|
|Protection Class||IP 20|
★ Unique SCR Closed Loop Control Algorithm
Unique SCR closed loop control function designed specifically for standard loads and heavy loads. According to the load, the user can select the current limit start and the voltage ramp start to realize the smooth and smooth start effect without torque.
★ High reliability
High-performance microprocessor makes digital processing on control system, it avoids excessive adjustment on analog lines and achieves excellent accuracy and speed of execution.
★ Strong anti-jamming performance
All external control signals use Photoelectric isolation and set a different anti-noise level. It fits for special industrial environment application..
★ Easy adjustment method
With wide application range of control system, easy and intuitive adjustment. Through a variety of function options to match different types of control object.
★ Optimized structure
Unique compact design of internal structure, particularly user-friendly make it integrated into existing system. It saves costs of current transformer costs for users.
★ Adaptive power frequency
Power frequency 50/60 Hz, adaptive function, user-friendly.
★ Improved protection function
A variety of motor protection functions (Such as over-current, input/output phase default, thyristor short circuit, overheat protection, leakage detection, electronic thermal overload, phase current imbalance, etc.) ensures that motor and soft starter will not be damaged in case of failure or malfunction.
★ Easy to maintain
Monitoring signal coding system consists of four digital display, which monitors system equipment's working conditions, while providing rapid fault diagnosis.
★ Panel Can Be Cited
The panel can be led to the remote operation of the equipment operation surface through the body interface, which is convenient for field use.
1. Dust: If too much dust, it will reduce the insulation level of the soft starter, even causes the soft starter does not work.
Brush the dust with clean and dry brush.
Remove dust with compressed air machine.
2. Condensation: If condensation, it will reduce the insulation level of soft starter, even causes the soft starter does not work.
(1) Blow it with a hair dryer or electric stove.
(2) Bring it to power distribution room for dehumidification.
3. Regularly check components' intact. Whether it can work properly.
4. Check soft starter' cooling channel, ensure they are not clogged by dirt and dust.
Before maintenance checking, it has to cut off all power in the line side of soft starter.
Warranty: One year quality guarantee after shipment. More details please kindly contact with Noker Electric.Thank you!
Contact Person: Sales Manager