Danfoss VLT frequency converters are dedicated, reliable and user-friendly products that meet the demands of industrial and building applications and reduce the total cost of ownership. Danfoss frequency converters are independent of motor manufacturers and can be adapted to any motor technology.
VLT® AutomationDrive FC 301 / FC 302
The FC 301 / FC 302 is Danfoss’ most powerful series of frequency converters, modular in design, suitable for all types of applications – from simple speed control (FC 301) to highly advanced, demanding applications (FC 302).
- 0,37 kW - 1100 kW, 3 x (380-500) VAC
- 1,1 kW - 1400 kW, 3 x (525-690) VAC
- Mechanical protection rating: IP00, IP20, IP21, IP54, IP55, IP66
- Built-in RFI filter and DC chokes to prevent higher harmonics
- Standard features include USB, RS 485, BACnet, ASi
- Options: Profibus DP-V1, DeviceNet, CANopen, Ethernet/IP Profinet, I/O module, relay module, encoder interface, braking circuit, lacquered printed circuit board, for power above 90 kW: fuses, input circuit breaker
- Detachable graphic or numeric control display
- Built-in Safe Torque Off (FC 302)
- Applications for asynchronous, synchronous, reluctance and permanent magnet motors
VLT® AQUA Drive FC202
The VLT® AQUA Drive is a dedicated frequency converter for driving devices used in drinking water and wastewater technology. It contains many dedicated features such as protection against operation outside the intended operating range (burst pipe detection), protection against pump dry-running, “sleep mode” to prevent unnecessary pump operation and cascade control for efficient operation of a group of pumps.
- 0,37 kW - 1000 kW, 3 x (380-480) V
- 45 kW - 1400 kW, 3 x (525-690) V
- Degree of mechanical protection (depending on power): IP00, IP20, IP21/Type 1, IP54/Type 12, IP55/Type 12, IP66/Type 4x
- For constant and variable torque loads
- Built-in RFI filter and DC chokes to prevent higher harmonics
- Integrated USB and RS485 interface
- The modular design allows for retrofitting
- Detachable graphic or numeric display
VLT® HVAC Drive FC102
VLT® HVAC Drive features applications that combine Danfoss’ extensive HVAC (Heating, Ventilation, Air Conditioning) know-how and experience. Built-in features that enable energy savings, easier monitoring and control, and system management and maintenance make these frequency converters among the best in the HVAC field.
- 0,18 kW - 2,2 kW, 1 x (200-240) V
- 0,37 kW - 22 kW, 3 x (380-480) V
- Mechanical protection rating: IP20
- Lacquered printed circuit board
- For constant and variable torque loads
- Integrated braking circuit
- PI regulation
- 150% overload for 1 min
- A clever logical contortionist
- Built-in RS485 interface with Modbus RTU protocol
- Detachable graphic control display (with or without potentiometer)
VLT® Midi Drive FC 280
Compact frequency inverter up to 22 kW. Multiple units can be installed side by side. USB interface for connection to a computer.
- 0,37 kW - 2,2 kW, 1 x (200-240) VAC
- 0,37 kW - 22 kW, 3 x (380-480) VAC
- Mechanical protection rating: IP20
- Lacquered printed circuit board
- Integrated braking circuit
- PI regulation
- 150% overload for 1 min
- Built-in PLC
- Built-in RFI filter and DC chokes to prevent higher harmonics
- Communication: modbus, CAN Open, Profinet
- Numeric or graphic control display
- Memory module
VLT® Micro Drive FC51
Industrial frequency inverter, extremely small dimensions, up to 22 kW. Highly reliable even in demanding applications.
- 1,1 kW - 1000 kW, 3 x (380-480) V
- 45 kW - 1400 kW, 3 x (525-690) V
- Mechanical protection rating: IP00, IP20, IP21, IP54, IP55, IP66
- Built-in RFI filter and DC chokes to prevent higher harmonics
- USB and RS-485 interface, BACnet, Modbus RTU, N2 Metasys, FLN Apogee, FC protocol built-in as standard
- Modular design allows for retrofitting
- Detachable graphic or numeric control display
- Specific features: flying start, sleep mode, fire mode
VLT® AAF Advanced Active Filters (Advanced Active Filter)
A highly flexible solution for the cancellation of higher harmonic components. It can be installed centrally for the whole plant or for part of the plant, or individually for each frequency converter. With the use of a suitable transformer, active filters can also be installed in the medium voltage network. Advanced active filters analyze the harmonic situation of the system and compensate for the higher harmonics present. At the same time, they can also compensate for reactive power in the system.
- Rated voltage: 3 x (380-480) V
- Rated current: 190 A, 250 A, 310 A, 400 A
- Up to four units can be operated simultaneously
- Degree of mechanical protection: IP21 and IP54
- Integrated USB and RS 485 interface
VLT® Soft Start MCD 200
Compact soft-start, with built-in bypass contactor, designed to bridge power thyristor elements after the start-up process. There are two versions: MCD201 with voltage ramp and no motor thermal protection and MCD202 with current-limited ramp and motor thermal protection.
- 7,5 kW - 110 kW, 3 x (200-575) VAC
- Control voltage: 24 V AC or DC; 110-440 VAC
- Options: separate control module and communication modules (Profibus, Devicenet, Modbus RTU)
- Protection rating: IP00, IP20
- Integrated bypass contactor
VLT® Soft Start MCD 600
Superior soft-start performance for fixed-speed applications. The built-in bypass contactor ensures extremely high efficiency and harmonic-free operation at full speed, reducing power consumption and cooling requirements. A wide range of communication and various special application cards provide a wide range of application possibilities.
- Power range: 21 - 1250A
- Supply voltage: 3 x 200-525 VAC and 3 x 380-690 VAC
- Control voltage: 24 V AC or DC; 110-440 VAC
- Functions: pump cleaning, PowerThrough operation, calendar scheduling
- Protection rating: IP00, IP20
Program Manager Danfoss VLT/Vacon, Merz and Solcon
Gorazd Bernik, M.Sc.