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Danfoss
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Micro Drives



The VLT® MicroDrive FC 51 from Danfoss is a genuine VLT® frequency converter with unsurpassed reliability, user-friendliness, condensed functionality, and extremely easy to commission.
Terminal numbers are named in the same manner as in the rest of the VLT® family.
It’s developed and manufactured by Danfoss Drives, the leading drives experts since 1968 and creators of VLT® - The Real Drive.

VLT Micro Drive FC51 features.
Application General applications
Power range 0.18-22kW
Torque characteristics CT 150%
Supply voltage 1 phase 200-240V
3 phase 200-240V
3 phase 380-480V
Enclosure IP20
Coating Class 3C2 standard, class 3C3 optional
Control principle VVCplus
Length motor cable 15 mtr (screened)
50 mtr (non-screened)
Inputs 2 Analog - 1 x 0-10Vdc and 1 x 0-20mA
5 Digital (** 1 digital input can be configured as a pulse input 20Hz - 5KHz)
Outputs 1 Analog - 0-20mA
1 Relay
Special functions Automatic Motor Adaption (AMA)
Automatic Energy Optimalization
Integrated logic controller
Flying start
PI controller
Motor protection Electronic thermic motor protection
Drive protectionTemperature heatsink, short-circuit on motor terminals and protection against earth faults.
Control Optional numeric display with or without potentiometer
 Communication RS485 interface, Modbus RTU
Env. temperaturemax. 50 degree C
Options  IP21/Nema 1 kit
LCP-kit for remote mounting of display
decoupling plate
Din rail mounting kit

Use the links below to see the features of the Danfoss VLT® MicroDrive FC 51.

TypeDetailsFile details
FactsheetsFact sheet presenting technical specifications of VLT Micro Drive, including enclosure types, customer benefits, available options, and more.Lit. no: MP002A02
Modified:07-Jul-2008
Size:1460KB
BrochureBrochure presenting the VLT Micro Drive, its unique features and related customer benefits. Lit. no: PB18A202
Modified:07-Jul-2008
Size:1821KB
Programming GuideThis guide contains information on how to programme the VLT Micro Drive. Furthermore, it offers parameter descriptions and parameters lists giving an overview of the content in each parameter group. Lit. no: MG02C402
Modified:04-Sep-2007
Size:1159KB
Operating Instructions These Operating Instructions contain basic information for mechanical and electrical installation of the frequency converter.You will also find technical specifications, a short introduction on how to programme and a complete parameter overview. Lit. no: MG02A402
Modified:13-Jun-2008
Size:4515KB
Quick GuideThis Quick Guide contains among others basic information on mechanical dimensions, installation and programming of the VLT Micro Drive.Lit. no: MG02B402
Modified:22-Oct-2007
Size:3167KB

Micro Drive FC 51 Single phase 200-240VDanfoss logo Micro Drive FC 51 Single phase 200-240V

Micro Drive FC 51 Three phase 200-240VDanfoss logo Micro Drive FC 51 Three phase 200-240V

Micro Drive FC 51 Three phase 380-480VDanfoss logo Micro Drive FC 51 Three phase 380-480V

Micro Drive FC 51 OptionsDanfoss logo Micro Drive FC 51 Options