EM303B-018G/022P-3B Frequency Converter
Contact Info
- Add:和平区文化路39号803室, Zip: 110004
- Contact: 党勇
- Tel:024-23883305
- Email:316794168@qq.com
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Detailed Description
The EM303B series inverter is a high-performance vector control inverter introduced by Sine Electric. This product adopts the internationally leading speed sensorless vector control technology, which not only enables the speed regulation performance of asynchronous motors to rival that of DC motors but also allows standard asynchronous motors to achieve the control performance of torque motors. It fully leverages the rapid response, precise control, and system stability required by motion control systems.
The main improvements of the EM303B over previous Sine Electric products are as follows:
> Speed sensorless SVC current vector control with a current control accuracy of 5% and a speed regulation accuracy of ±7.5 rpm;
> Vectorized VVF control based on vector control methods, delivering steady-state performance equivalent to standard vector control;
> Wide speed regulation range with low-frequency load capacity: SVC/0.5Hz/150% load, VVF/1.0Hz/150% load;
> Automatic motor speed search with smooth, shockless speed tracking;
> 0.1s acceleration and deceleration, automatic current limiting, and automatic voltage stabilization to ensure optimal fault-free motor control;
> Automatic suppression of motor impact loads to ensure continuous fault-free operation;
> Supports both linear acceleration/deceleration and S-curve acceleration/deceleration modes;
> The inverter autonomously enters appropriate overvoltage stall and overcurrent stall regulation states, enabling better control of output current and voltage;
> Utilizes dual-core CPU control, significantly improving performance and stability compared to single-core CPUs.
For more details, please contact our company.
Technical Specifications
Item | Specification | |
Power Supply | Rated Voltage | Three-phase 380V±20%, 50～60Hz±5%, voltage imbalance rate <3% |
Output | Maximum Output Voltage | Same as input power supply voltage |
Rated Output Current | 100% rated current continuous output | |
Maximum Overload Current | For G-type: 150% rated current for 1 minute, 180% rated current for 10 seconds For P-type: 120% rated current for 1 minute, 150% rated current for 10 seconds | |
Basic Control Functions | Drive Method | V/F open-loop control, PG-less vector mode 0, PG-less vector mode 1 |
Input Method | Frequency (speed) input, torque input | |
Start/Stop Method | Keypad, control terminals (two-wire control, three-wire control), RS485 | |
Frequency Control Range | 0.00～600.00Hz | |
Input Frequency Resolution | Digital input: 0.01Hz; Analog input: 0.1% of maximum frequency | |
Speed Regulation Range | 1:50 (space vector VF), 1:100 (PG-less vector SVC) | |
Speed Control Accuracy | ±0.2% of rated synchronous speed | |
Acceleration/Deceleration Time | 0.01s～600.00s / 0.01min～600.00min | |
Voltage/Frequency Characteristic | Rated output voltage adjustable from 20% to 100%, base frequency adjustable from 20Hz to 600Hz | |
Torque Boost | Automatic torque boost, fixed torque boost curve, customizable V/F curve options | |
Starting Torque | 150%/1Hz (space vector VF), 150%/0.5Hz (PG-less vector SVC) | |
Torque Control Accuracy | ±5% (PG-less vector 1) of rated torque | |
Output Voltage Self-Adjustment | When AVR function is active, output voltage remains stable despite input voltage changes | |
Automatic Current Limiting | Automatically limits output current to avoid frequent overcurrent trips | |
DC Braking | Braking frequency: 0.1～60Hz; Braking time: 0～30s Braking current: 0～150% of rated current | |
Signal Input Source | Communication, analog voltage, analog current, multi-step speed, simple PLC, and combinations | |
Special Function Control | Textile Swing Frequency | Implements textile swing frequency function with swing amplitude, swing time, and swing jump |
Input/Output Functions | Reference Power Supply | 10V/20mA |
Terminal Control Power Supply | 24V/150mA | |
Digital Input Terminals | 7 programmable digital input terminals | |
Analog Input Terminals | 4 analog inputs: 2 voltage source 0～10V inputs, 2 current source 0～20mA inputs | |
Digital Output Terminals | 2 open-collector outputs, 1 relay output, all programmable. Open-collector max output current 50mA; relay contact capacity 250VAC/3A or 30VDC/1A, EA-EC closes and EB-EC opens during operation | |
Analog Output Terminals | 2 programmable analog output terminals, outputting 0～10V or 0～20mA | |
Keypad Display | LED Display | LED digital tube displays inverter-related information |
Parameter Copy | Upload and download inverter code information for quick parameter replication | |
Protection | Protection Functions | Short circuit, overcurrent, overload, overvoltage, undervoltage, phase loss, overheating, external fault, etc. |
Usage Conditions | Installation Location | Indoors, altitude below 1,000 meters, dust-free, free of corrosive gases, and no direct sunlight |
Operating Environment | -10℃～+40℃, 20%～90% RH (non-condensing) | |
Vibration | Less than 0.5g | |
Storage Environment | -25℃～+65℃ | |
Installation Method | Wall-mounted, floor-mounted electrical cabinet, through-wall mounting | |
Protection Rating | IP20 | |
Cooling Method | Forced air cooling | |
| Industry Category | Electrical-Equipment-Supplies |
|---|---|
| Product Category | |
| Brand: | 正弦 |
| Spec: | EM303B-018G/022P-3B |
| Stock: | 100 |
| Manufacturer: | |
| Origin: | China / Guangdong / Shenshi |
