The ALD‑3000 series is a compact, low‑power high‑performance current‑vector inverter from Ailunde, designed to control both asynchronous motors and permanent‑magnet synchronous motors. Built around IPM/PIM modules for superior reliability, it delivers 150% starting torque at 1 Hz, ensuring strong starting performance. With built‑in PID regulation and simple PLC functionality, excellent noise immunity, a space‑saving footprint, and easy installation, it is an ideal drive solution for textile, papermaking, wire drawing, machine tools, packaging, food processing, fans, pumps, and various automated production lines.
1.High starting torque – 150% rated torque at 0.5 Hz (sensorless vector control), easily handles heavy‑load starts.
2.Dual‑motor control – Supports both three‑phase AC induction motors and permanent‑magnet synchronous motors with flexible switching.
3.Multiple encoder options – Optional PG cards support various encoder types for closed‑loop high‑precision control.
4.Sensorless vector control – Can run at zero speed; low sensitivity to motor parameter variations, excellent field adaptability – ideal for winding control and load‑sharing in multi‑motor systems.
5.User data backup – Restore factory defaults or user‑saved parameters to avoid misconfiguration during debugging.
6.Fieldbus ready – Standard RS485 interface with proprietary protocol support for easy connection to external devices.
7.Powerful PC software – Enables parameter upload/download and real‑time waveform monitoring for convenient debugging and diagnostics.
8.Isolated airflow design – Enhances protection against dust, humidity, and harsh environments, extending product life.
9.Flexible mounting – Wall‑mounting and flange (through‑wall) options for 0.75~11 kW, adapting to various cabinet layouts.
10.Easy fan maintenance – Fan replacement is quick and simple, facilitating routine cleaning and service.
Maximum frequency V/F control: 0~3200 Hz; Vector control: 0~300 Hz
Carrier frequency 0.5 kHz ~ 16 kHz (auto‑adjustable)
Control modes Open‑loop vector (SVC), V/F control
Starting torque 150% at 0.5 Hz (SVC)
Speed control range 1:200 (SVC); 1:50 (V/F)
Speed accuracy ±0.5% (SVC)
Overload capacity 150% rated current for 60 s; 180% for 3 s
Torque boost Auto or manual (0.1% ~ 30.0%)
Accel./Decel. curves Linear or S‑curve; four independent ramp times (0.0 ~ 6500.0 s)
DC braking Frequency: 0.00 Hz ~ max. frequency; Time: 0.0 ~ 36.0 s; Current: 0.0% ~ 100.0%
Multi‑speed operation Up to 16 preset speeds via internal PLC or control terminals
Built‑in PID Easy implementation of closed‑loop process control
AVR function Automatic voltage regulation to maintain constant output during grid fluctuations
Fast current limiting Minimises overcurrent faults and protects equipment
Common DC bus Supports parallel DC‑bus connection for multiple inverters
Digital inputs 5 (one configurable as high‑speed pulse input up to 100 kHz)
Analog inputs 2 (one voltage‑only, one voltage/current selectable)
Outputs 1 relay output, 1 digital output (expandable)
Display & keypad LED display; parameter copy; key lock function
Protections Comprehensive protection: overvoltage, overcurrent, overload, phase loss, short circuit, earth fault, etc.
· Textile & chemical fibre
· Papermaking
· Wire drawing
· Machine tools
· Packaging machinery
· Food processing
· Fans & pumps
· General automation equipment
