AT AT500 Series Variable Frequency Drive User Manual

This manual covers the installation, operation, parameter settings, and maintenance of the AT AT500 series variable frequency drives.


AT AT500 Series Variable Frequency Drive User Manual - cover page
Brand
AT
Document type
User Manual
Language
Chinese
Pages
128
File format
PDF
File size
6 MB
Published
15 October, 2026
Updated
15 October, 2026
MD5 checksum
AEBE2D0584D690AB9C2159BC7B6ADB83

About this manual

The AT AT500 series is a high-performance vector control and torque control type variable frequency drive. It utilizes sensorless vector control technology synchronized with international leading standards to ensure excellent control performance while being adapted for Chinese application characteristics, reliability, and environmental adaptability.

This user manual provides comprehensive guidance on product information, mechanical and electrical installation, keyboard operation, basic running procedures, parameter lists and explanations, maintenance routines, and fault diagnosis. It includes specific safety precautions regarding wiring, grounding, and operation to prevent equipment damage or personal injury. This manual is written in Chinese.

What's inside

  • Product Information
  • Safety Precautions
  • Mechanical Installation
  • Electrical Installation
  • Keyboard and Display
  • Basic Operation and Trial Run
  • Parameter List
  • Maintenance and Fault Diagnosis

Specifications

Maximum Frequency0~320Hz
Carrier Frequency Range0.5kHz~8.0kHz
Control MethodsV/f Control, Open-loop Vector Control (SVC), Closed-loop Vector Control (FVC)
Overload Capability150% rated current for 60s; 180% rated current for 3s (G-type)
Torque Boost Range0.1%~30.0%

Frequently asked questions

What safety measures are required before maintenance?

Power must be disconnected, and at least 10 minutes should pass or the CHARGE indicator light must be off to prevent injury from residual voltage.

Can capacitors be connected to the output terminals?

No, it is strictly prohibited to connect capacitors or phase-advanced LC/LR noise filters to the output end as this will damage internal components.

What is the maximum frequency of the drive?

The maximum operating frequency for the AT500 series is 320Hz.

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