New-generation flagship model with high torque, strong anti-interference performance & easy maintenance, suitable for textile, machine tool, fan, water pump and all automated production lines.
150% Starting Torque at 0.5Hz
Independent Air Duct for Harsh Working Conditions
Self-developed RS485 Fieldbus Support
Wall-mounted/Flange/Floor-mounted Multiple Installation Modes
Complete Motor Auto-tuning Functions
ALD-350 series is developed based on actual industrial site working conditions with balanced high performance and superior reliability. It covers power range from 0.75KW to 630KW, and voltage grades including 220V, 380V, 440V, 690V&1140V.Equipped with sensorless vector control algorithm, it supports both static & rotating motor auto-tuning modes. Built-in overvoltage/overcurrent stall prevention functions reduce tripping failures. Modular independent air duct design enables stable operation in textile, paper making, wire drawing, machine tool, packaging, food processing, fan, water pump and all kinds of automated production lines.
1. Dual-Mode Motor Auto-Tuning, Zero Barrier Commissioning
• Rotating Auto-tuning: For high-precision control scenarios (motor load disconnected)
• Static Auto-tuning: For on-site commissioning without disconnecting motor load
Accurately identifies motor parameters to boost control precision and response speed, greatly lowering on-site debugging difficulty.
2. Optimized Vector V/F Control, Less Fault Trips
Closed-loop voltage & current control with two built-in stall protection logics:
• Overvoltage Stall Prevention: Automatically adjusts output frequency during deceleration to avoid DC bus overvoltage caused by motor regenerative energy
• Overcurrent Stall Prevention: Dynamically limits frequency during acceleration to eliminate overcurrent shutdown under heavy startup loads
Stable long-term operation and lower maintenance downtime.
3. Ultra-Low Frequency High Starting Torque for Heavy Loads
Under sensorless vector control, it delivers 150% rated starting torque at 0.5Hz with torque response time less than 20ms. Smooth startup without jitter or stall for heavy-load equipment such as wire drawing machines and textile machinery.
4. Independent Air Duct Structure, Long Service Life in Harsh Environments
Independent vertical heat dissipation air duct improves dustproof & heat dissipation performance, applicable to dusty, humid and high-temperature workshops. Flange through-wall installation solves cabinet heat dissipation issues and extends service life.
5. Flexible Multi-Spec Installation for All Cabinets
Power-based installation schemes without customized cabinet modification:
• 0.75KW–160KW: Dual options of wall-mounted & flange through-wall installation
• 200KW–400KW: Vertical floor-mounted installation
Detachable cooling fan for easy disassembly, cleaning and replacement to cut maintenance time.
6. Self-Developed RS485 Fieldbus for Centralized System Networking
Proprietary RS485 communication protocol supports quick connection with PLC, touch screen, upper computer and other peripheral devices, realizing centralized group control of multiple inverters for automated production lines.
7. Professional PC Debug Software for Visual Operation & Maintenance
Support parameter batch upload/download and real-time waveform oscilloscope monitoring via dedicated PC software. One-click restoration of user-defined parameters if misoperation distorts settings, eliminating repeated re-debugging.
8. Built-in Torque Limit Protection to Avoid Mechanical Damage
Intelligent torque limiting function automatically restricts output torque under instantaneous overload, preventing mechanical impact, material breakage and equipment damage on wire drawing machines, machine tools and textile machines to cut repair costs.
Full-function integrated operation panel with partitioned layout for beginner-friendly operation:
1. Status Indicator Lights: Real-time running & fault feedback
2. 5-Digit Digital Display: Shows frequency, current, voltage, rotation speed and over 20 operating parameters
3. Functional Keys: Menu, shift, speed up/down, confirm, run, stop & reset independent buttons
4. Distinguishable red/green run/stop buttons for high visibility in industrial sites; compatible with external remote keyboard
1. Light Industry: Textile chemical fiber, printing & packaging, food processing, wire drawing equipment
2. Metal Processing: All types of machine tools & metal production lines
3. Fluid Equipment: Fans, water pumps, constant pressure water supply systems
4. Building Materials & Metallurgy: Building material production lines, metallurgical conveyors
5. General Automation: Assembly lines, conveyors, small lifting equipment
7. Hardware Structure & Wiring
• Multiple Utility Model Patents for self-developed algorithms and hardware structures
• BPQC Quality Management System Certification with standardized full-process production & testing
• CE EMC Compliance Certificate, meeting domestic and international industrial electrical standards
• Full-load aging test, high/low temperature & voltage fluctuation simulation test for all finished units before delivery
Q1: Can auto-tuning be performed without disconnecting the motor load?
A: Static auto-tuning mode is available, no need to disconnect motor load for on-site debugging.
Q2: Does it support group control of multiple inverters?
A: Built-in proprietary RS485 bus supports multi-unit networking, compatible with mainstream PLC communication protocols.
Q3: Will heat dissipation degrade in dusty workshops?
A: Vertical independent air duct prevents dust accumulation; detachable washable fan suits harsh working environments.
Q4: Can it be used for energy saving of constant pressure water supply & fans?
A: Built-in closed-loop PID control matches pressure/liquid level sensors perfectly for fan & water pump energy-saving scenarios.
Q5: What installation method is adopted for high-power models?
0.75–160KW supports wall-mounted & flange installation; models above 200KW adopt floor-mounted installation with standard mounting brackets.
1. ALD-3000 High-Performance Vector Inverter (Dual drive for synchronous & asynchronous motors)
2. ALD-550 High-End Industrial Inverter (Momentary power loss ride-through, PT100 motor temperature protection)
3. Complete Inverter Control Cabinet (Custom constant pressure water supply & machine tool cabinets)
4. Matching Products: Intelligent Soft Starter, Servo Electronic Transformer
