Key facts
- Manuals
- 13
- Models
- 1
- Languages
- ZH · EN
- Last added
- 2012-03-31
VLT models by category
Featured VLT manuals

Danfoss FC 51 Operation Manual
This manual covers safety precautions, mechanical and electrical installation, wiring diagrams, programming using MCT‑10 or LCP, parameter overview, troubleshooting and full technical specifications for the VLT Micro Drive FC 51 variable frequency drive.
It also details required grounding, fuse selection, EMC‑compliant cabling, and optional accessories such as control panels and decoupling boards, helping installers and users configure the drive safely and efficiently. This manual is written in Chinese.
Covers: Safety · Mechanical Installation · Electrical Installation · Programming · Parameter Overview · Troubleshooting

Danfoss VLT AutomationDrive FC 300 User Manual
This manual explains how to read the documentation, presents safety instructions and general warnings, and guides users through mechanical and electrical installation of the VLT AutomationDrive FC 300. It also covers connection of the main power, grounding requirements, and cable sizing.
Further sections describe programming via the local control panel, parameter settings, and provide a troubleshooting guide with common error messages and corrective actions. An index and a list of abbreviations help locate information quickly. This manual is written in Chinese.
Covers: How to read these instructions · Safety instructions and general warnings · Mechanical installation · Electrical installation · Programming · General specifications

VLT 2900 User Manual Operating Instructions
The VLT 2900 User Manual provides step‑by‑step guidance for installing, configuring, and operating the drive. It explains the function of the front‑panel controls such as STOP/RESET, QUICK MENU, and parameter change keys, and describes the indicator LEDs and alarm messages.
Technical data, wiring diagrams, and communication settings are listed in the later sections, along with safety notes and maintenance procedures to ensure reliable long‑term operation.
Covers: Safety Information · Installation · Front‑Panel Controls · Parameter Settings · Diagnostics and Alarms · Technical Specifications

Danfoss VLT MCD 201/202/500 Soft Starter User Manual
This manual describes the principle of phase‑angle control used by Danfoss VLT soft starters, the available protection functions and the various control options. It covers the three product families – MCD 201, MCD 202 and MCD 500 – and details their technical data, dimensions and wiring.
Installation, remote operation and communication modules (DeviceNet, Profibus, Modbus RTU, USB) are explained, together with programming menus, safety features and troubleshooting guidance. This manual is written in Chinese.
Covers: Principle of operation · Features and protection functions · Technical specifications · Dimensions and mounting · Communication options · Installation and wiring
Latest VLT manuals
VLT HVAC Drive operating instructions
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 5000 series operating Manual
VLT 7000 Booster Manual
The VLT 7000 Booster is a variable frequency drive, and this manual provides a detailed introduction and use of the product.
VLT 2800 series operating instructions
This PDF document is a product manual for VLT®2800 frequency converter. The document describes the features and characteristics of VLT 2800, including its applicability to different voltages and frequencies, function menus, and parameter settings.
VLT 3500 HVAC
VLT® 3500 HVAC MG.35.B1.02 is a Danfoss VFD that features safety, reliability, and easy operation. It can be used in a variety of industrial applications. This document mainly introduces the product introduction, mechanical and electrical installation, operation and programming, fault diagnosis and maintenance of the VFD.
VLT 3000 Series Product Manual
This is the VLT 3000 frequency converter product manual, which introduces the features and characteristics of the product, such as electrical safety, installation, connection, operation, maintenance and control.
Danfoss FC 51 Operation Manual
User Manual 37 pages · 2.2 MB · ZHThe Danfoss FC 51 operation manual provides safety guidelines, installation steps, wiring diagrams, programming instructions and specifications for the VLT…
Danfoss VLT AutomationDrive FC 300 User Manual
User Manual 90 pages · 4.9 MB · ZHThe Danfoss VLT AutomationDrive FC 300 User Manual provides safety guidelines, installation steps, programming instructions, and troubleshooting for the FC…
VLT 2900 User Manual Operating Instructions
User Manual 69 pages · 5.3 MB · ENOperating instructions for the VLT 2900 variable frequency drive, covering setup, parameters, and troubleshooting.
Danfoss VLT MCD 201/202/500 Soft Starter User Manual
User Manual 2 pages · 543 KB · ZHThe Danfoss VLT soft starter manual explains operation, installation, programming and specifications for the MCD 201, 202 and 500 models.
VLT Micro Drive FC 51 QuickStart Guide
Danfoss VLT Micro FC 51 Quick Start Guide
Quick Start Guide 19 pages · 1.2 MB · ZHThis quick start guide provides safety warnings, installation steps, wiring details, basic programming and key specifications for the Danfoss VLT Micro FC…
VLT FC101 Variable Frequency Drive Manual
User Manual 12 pages · 2.9 MB · ZHThe manual provides specifications, installation, wiring, and safety information for the VLT FC101 VFD used in water‑pump applications.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Quick Start Guide
The shortest path to a working setup, usually only a few pages.
Questions answered in VLT manuals
What type of fuse is recommended for the FC 51?
Use fuses rated up to 100 000 A rms and 480 V, preferably B‑type RCDs for protection, as listed in the fuse table.
What cabling is required to meet EMC regulations?
Use shielded or armored motor cables with at least 80 % shield coverage, and keep motor cables separate from control cables.
How long must I wait after disconnecting the main power before servicing the FC 300?
You should wait at least 15 minutes after the main power is disconnected before beginning maintenance.
Which type of residual‑current device (RCD) may be used with the FC 300?
Only a type‑B RCD (time‑delayed) is permitted on the input side of the device.
What control principle do VLT soft starters use?
They use phase‑angle control, where reverse‑parallel thyristors provide a ramped motor voltage.
What is the maximum power rating of the VLT soft starter range?
The range covers up to 800 kW for the MCD 500 series.
