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ABB ACS355-03E-08A8-4 High-efficiency Low-voltage AC Drive Product Introduction
Product Description
The ABB ACS355-03E-08A8-4 belongs to the ACS355 series of high-efficiency low-voltage AC drives, which is a compact drive device designed for speed control of medium and low-power motors. Adopting vector control technology, this drive can realize precise speed and torque adjustment of asynchronous motors, adapting to a 3-phase 400V power supply system with a rated output current of 8.8A, capable of driving 3-phase asynchronous motors below 4kW. Its integrated structure incorporates an EMC filter, brake unit interface, and multiple protection functions, supporting mainstream industrial communication protocols such as Modbus and Profibus, and can be directly integrated into automated control systems. The device adopts a natural cooling design with a compact size (145mm wide × 267mm high × 195mm deep), suitable for industrial scenarios with limited space. It also meets the IE2 energy efficiency standard, effectively reducing motor operating energy consumption, and is widely used in speed control of general machinery such as fans, pumps, and conveyors.
Detailed Parameters
- Drive Model: ACS355-03E-08A8-4
- Power Supply: 3-phase AC 380~480V (-15%~+10%), 50/60Hz (±5%)
- Rated Output Power: 4kW (matched motor power)
- Rated Output Current: 8.8A (at ambient temperature ≤40℃), 6.6A (derated operation at ambient temperature 60℃)
- Output Frequency Range: 0.5~500Hz
- Control Mode: Scalar control (V/f), Sensorless Vector Control (SVC)
- Overload Capacity: 150% rated current for 60 seconds; 200% rated current for 0.5 seconds
- Power Factor: Input power factor ≥0.95 (at rated load)
- Efficiency Level: ≥96% (at rated load, 50Hz output)
- Protection Functions: Overcurrent protection, overvoltage protection, undervoltage protection, overtemperature protection, motor stall protection, earth fault protection, phase loss protection
- Communication Interface: Standard RS485 (supports Modbus RTU), optional Profibus-DP, DeviceNet communication modules
- Analog Input: 2 channels of AI (0~10V/4~20mA, programmable)
- Digital Input: 6 channels of DI (24V DC, programmable)
- Digital Output: 2 channels of DO (relay output, 250V AC/30V DC, 5A)
- Brake Unit: Built-in brake unit interface, supports external brake resistor (recommended resistance 15Ω, power 200W)
- Cooling Method: Natural cooling (ambient temperature ≤40℃), forced air cooling (optional, for high-temperature environments)
- Protection Level: IP20 (body), IP00 (terminal block part, must be installed in a control cabinet)
- Operating Temperature Range: -10℃~+60℃ (operation), -40℃~+70℃ (storage)
- Relative Humidity: ≤95% (no condensation, at ambient temperature ≤40℃)
- Vibration Level: ≤5.9m/s² (10~500Hz)
- Dimensions (W×H×D): 145mm×267mm×195mm
- Certification Standards: CE (EU), UL (USA), CSA (Canada), CCC (China)
Product Advantages and Features
- Energy Efficiency: Adopting an optimized vector control algorithm, the motor operating efficiency is increased by 3%~8%. Compared with motors running at fixed speed, combined with PID closed-loop control, it can reduce energy consumption of fan and pump loads by 20%~30%, meeting the energy-saving transformation needs in industrial fields.
- Precise Control: Under the sensorless vector control mode, the speed control accuracy can reach ±0.5% of the rated speed, and the torque response time is ≤100ms. It can stably drive low-inertia loads (such as precision conveyors) and avoid impact vibration during start and stop.
- High Compatibility: Supports multiple motor types (asynchronous motors, permanent magnet synchronous motors), adapts to 380~480V wide voltage input, and can operate stably in industrial power grids with large voltage fluctuations; the communication interface has strong expandability, enabling quick integration into PLC, DCS and other automated systems without additional adapter modules.
- High Reliability: Built-in EMC Class B filter can reduce electromagnetic interference to the power grid while resisting external interference signals; the overtemperature protection uses dual temperature sensors (IGBT module and ambient temperature) to early warn of overheating risks and avoid equipment damage; all terminals adopt anti-loosening design to reduce contact failures caused by vibration.
- User-Friendly: Equipped with an LCD display panel (supports Chinese/English switching), which can display real-time motor speed, current, voltage and other parameters, and supports direct parameter modification and copying through the panel (parameter copy function); the debugging software ABB DriveComposer is provided for free, supporting remote monitoring and parameter configuration on the computer side, simplifying the debugging process.
- Compact Design: The natural cooling structure does not require a fan, reducing mechanical failure points and lowering operating noise (≤55dB, measured at 1m distance); the volume is 30% smaller than traditional drives of the same power level, saving control cabinet installation space and suitable for scenarios with dense arrangement of multiple drives.
Application Areas
- HVAC (Heating, Ventilation and Air Conditioning) Field: Used for speed control of central air conditioning fans and cooling tower fans. By adjusting the fan speed through PID to match the air conditioning load demand, it saves 25%~35% energy compared with fixed-frequency operation, while reducing fan start-stop impact and extending equipment life.
- Water Treatment Field: Adapts to submersible pumps and dosing pumps in sewage treatment plants. It controls flow and pressure by adjusting the pump speed, avoiding energy waste caused by valve throttling, and supports linkage control with liquid level signals to realize unattended operation.
- Material Conveying Field: Used for driving control of factory conveyors and hoists. The sensorless vector control can realize low-speed and high-torque output (150% rated torque at 0.5Hz), meeting the demand for stable lifting of heavy objects. At the same time, it links with photoelectric sensors through DI/DO interfaces to realize automated control of start-stop and speed regulation.
- Machine Tool Equipment Field: Drives cooling pumps and lubrication pumps of CNC machine tools. It adjusts the pump speed to match the machine tool processing rhythm, reducing invalid energy consumption; it supports emergency stop signal access to ensure safe operation of the equipment.
- Food and Beverage Industry: Used for driving mixing motors and filling equipment in production lines. The equipment's protection level is suitable for the clean environment of food factories, and it supports the quick parameter copy function, facilitating unified debugging of multiple devices and improving production line deployment efficiency.
- Building Materials Industry: Drives conveyors in tile production lines and cement conveying fans. It can adapt to industrial environments with more dust. The overtemperature protection and stall protection functions can avoid motor damage caused by overload due to dust blockage, reducing maintenance costs.
The structure and details of the product：
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