Function and Application
The NJRP5 series soft starter is an external bypass soft starter, with input power supply voltage (main circuit voltage) being AC200V~415V and AC200V~690V. It is designed based on power electronics technology, microprocessor technology, and modern control theory technology for three-phase AC induction motors. It has strong load adaptability, stable and reliable operation, and is widely used in metallurgy, petroleum, fire protection, mining, water supply, municipal, food, cement, petrochemical industries, and is the ideal product to replace traditional star-delta starting and autotransformer voltage reduction starting.
Detail Description
Parameters:
Start mode: 7 types
Digital input: 5 channels
Failure record: 15 times
Motor parameters: 3 groups
Advantages/Core Functions:
01 Excellent performance
Seven modes available, precisely lock the best starting effect
Low-speed forward and reverse operation function, meeting the needs of equipment debugging and maintenance
02 Rich functions
Reverse protection function, preventing equipment damage caused by reverse rotation
Sequential start function, reducing external control wiring, saving usage costs
03 Convenient and easy to use
Integrated load type selection, automatically matching optimal parameters, shortening debugging time
Chinese and English liquid crystal keyboard, intuitive display of parameters and functions, parameter viewing or modification is more efficient
Detail Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| Soft Starter | Main Power Supply Voltage (V) | NJRP5-D4: AC200V-AC415V (-10%~+10%)
NJRP5-D6: AC200V-AC690V (-10%~+10%) |
| Main Power Supply Frequency (Hz) | Current mode: 35Hz~60Hz
Non-current mode: 50Hz±2Hz, 60Hz±2Hz. |
| Start Mode | Standard Current, Enhanced Current, Standard Voltage, Enhanced Voltage, Linear Torque, Square Torque, Frequency Division |
| Start Frequency | Can be set, recommended not to exceed 10 times/hour |
| Starting Voltage | 30%Ue~70%Ue |
| Starting Limit Current | 50%le~500%le |
| Rated Impulse Withstand Voltage Uimp(kV) | 8kV |
| Starting Limit Current | Level 2, 10A Level, 10 Level, 20 Level, and 30 Level |
| Pollution Level | Level 3 |
| Applicable Motor | General squirrel cage three-phase asynchronous motor |
