VLT® Micro Drive FC51

The VLT® Micro Drive is a general purpose drive that can control AC motors up to 7.5 kW. It is a small drive with maximum strength and reliability.  

Features and Benefits:

Product Range

1 x 200–240 V AC 0.18–2.2 kW

3 x 200–240 V AC 0.25–3.7 kW

3 x 380–480 V AC 0.37–7.5 kW

VLT® Micro Drive 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.

Despite the compact size and the easy commissioning, VLT® Micro Drive can be set up to perform perfectly even in complex application set-ups. 
Approximately 100 parameters can be set to optimize energy efficiency and operation.

Coated PCB standard

For harsh environments.

Real space saving side-by-side

A compact book style design allows real side by side mounting without derating.

Minimum penetration of dust

VLT® Micro Drive is designed to keep the forced ventilation away from the electronics. Printed circuit boards are well protected inside the drive.

Built-in RFI

Radio disturbance from motor cables is limited with the built-in RFI filter allowing for 15 m motor cables (screened). Meets EU norms.

Built-in brake functions

With built in DC and AC brake functions, VLT® Micro Drive can transform kinetic energy in the application into braking power to slow down the motor. A brake chopper is built-in the drives from 1.5 kW upwards.

Display options

Numerical Local Control Panel;

-Without potentiometer(LCP 11)

-With potentiometer(LCP 12)

LCP Remote mounting kit with 3m cable.


IP21 / NEMA 1 kit.

Decoupling plate kit.

DIN rail mounting kit.


Mains supply (L1, L2, L3):

Supply voltage

1 x 200–240 V ±10%, 3 x 200–240 V±10%

3 x 380–480 V ±10%


Output data (U, V, W):

Output voltage.0–100% of supply voltage


Output frequency

0–200 Hz (VVC+ mode), 0–400 Hz(U/f mode)


Switching on output



Ramp times

0.05–3600 sec


Digital inputs:

Programmable inputs




Voltage level

0–24 V


Pulse inputs:

Programmable inputs1*

Voltage level

0–24 V DC (PNP positive logic)

Pulse input frequency

20–5000 Hz

* One of the digital inputs can be used for pulse inputs.


Analog input:

Analog inputs



1 current/1 voltage or current

Voltage level

0 – 10 V (scaleable)

Current level

0/4–20 mA (scaleable)


Analog output:

Programmable analog outputs1

Current range at analog output

0/4–20 mA


Relay outputs:

Programmable relay outputs

1 (240 VAC, 2 A)


CE, C-tick, UL


Fieldbus communication:

FC Protocol

Modbus RTU