VLT HVAC Drive User Manual

This manual describes the installation, operation and programming of the Danfoss VLT HVAC drives. The manual contains information on safety instructions, mechanical installation, electrical connection, operation, programming and troubleshooting.


VLT HVAC Drive User Manual - cover page
Brand
VLT
Document type
User Manual
Language
Chinese
Pages
93
File format
PDF
File size
4.3 MB
Published
31 March, 2012
Updated
30 September, 2023
MD5 checksum
D5B78F339640B1340C88E777FCBA8741

About this manual

The VLT HVAC Drive User Manual provides detailed guidance on safely installing, wiring, and operating the drive. It includes safety warnings, mechanical and electrical installation steps, and instructions for connecting and testing the motor.

The manual also describes programming options, parameter lists, troubleshooting alerts, and technical specifications such as power ratings, input voltage ranges, and grounding requirements. This manual is written in Chinese.

What's inside

  • Safety
  • Introduction
  • Mechanical Installation
  • Electrical Installation
  • Operation
  • Programming
  • Troubleshooting
  • Specifications
  • Index

Specifications

Power rating (high end)11‑75 kW
Power rating (low end)11‑30 kW
Input voltage (low voltage)200‑240 VAC
Input voltage (high voltage)380‑480 VAC
Minimum grounding cable cross‑section≥ 10 mm²
Leakage current threshold> 3.5 mA

Frequently asked questions

How long must I wait after power‑off before performing maintenance?

For a 11‑75 kW unit wait 4 minutes; for a 11‑30 kW unit wait 15 minutes before servicing.

What is the safety‑stop function and how is it activated?

The safety‑stop function, defined by EN 954‑1 category 3, stops the drive safely and is activated by pressing the OFF button after ensuring the drive is disconnected from the main power.

What grounding cable size is required for the drive?

The grounding cable must have a cross‑section of at least 10 mm² to ensure a reliable mechanical connection.

At what leakage current does the drive trigger a protection alarm?

A leakage current greater than 3.5 mA will trigger an alarm.

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