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Variable Speed Drive Triol AK06 line LH

Variable Speed Drive AK06 line LH is a reliable and profitable solution based on the line RD, for applications that require compliance with the requirements of IEEE519 standard in the main operating range of the installation.

LH drives provide a minimum level of distortion to the input network due to the built-in passive harmonic filter. The rated output current of the VSDs is from 100 A to 2000 A, the supply voltage is 380 V, 50 Hz and/or 480 V, 60 Hz. Triol provides efficient control of installations both with induction and valve motors with specialized authoring control algorithms.

Distinctive benefits of Variable Speed Drive Triol AK06:

  • Maximization of Production
  • Commissioning is a snap
  • Cost-Saving
  • Investment Savings
  • ESP run life extensions
  • Operating temperature range: -20°С …+50°С
  • Enclosure: NEMA3R
  • Built-in PHF (passive harmonic filter)
Power supply, V
  • 3×380 ± 15% / 3×480 (-15% … + 10%)
  • 50% continuously with reduced output power
  • 65% up to 500 ms (with a decrease of output power)
Input Frequency, Hz50±1 and/or 60±1
Rated output current, A100 – 2000
Overcurrent characteristics120% of rated value for 60 sec
Change of frequency task increment, Hz0,1
Efficiency96 %
Passive filter efficiency>98 %
Level of current distortion in the input network THDi<5% in the load range from 25%* to 100%   * operation in the extended load range is optional when specified in the order
DC bus chokeBuilt-in
Sine filterBuilt-in
Capacitor unit (for voltage sags)Option, outdoor


Braking IGBTOption, built-in
Braking resistorOption, outdoor
Electric meterOption, built-in
GPRS routerOption, built-in
  • UMKA03 controller with a 7-inch monochrome screen, push-button control
  • UMKA07 controller with LCD-TFT 7 inch display, push-button control (touch screen optional)
  • Integration of third-party controller
Output frequency, Hz
  • 1.5 – 80 Hz, in induction motor control mode
  • 1.5 – 200 Hz, in permanent magnet motor control mode
  • 1.5 – 600 Hz, in high-speed PMM control mode


PWM frequencyup to 8 kHz depending on VSD type
Speed maintenance accuracy (static) +/- 10% of rated speed in open-loop system
Control type
  • vector control in an open-loop system without speed feedback (for PMM)
  • scalar control: based on the characteristic voltage / frequency U / F (for induction motors)


Light alarm“Work”, “Waiting”, “Stop”
Operator Control VoltageOption:

  • 10 V DC, +/- 2% current not more than 30 mA
  • 24 V, 300 mA
  • 110/220 V, 10A for connecting of third-party consumers
Number of AI2 by default, optional extension +8
AI typeprogrammable 4..20 mA, 0..5 mA, 0..10 V (frequency reference / multifunction analog input)
Number of DIN2 by default, optional extension +4 or more
DIN type24 V, input resistance: 4 kOhm
Number of analog outputsOption, 4 or more programmable 4..20 mA, 0..5 mA, 0..10 V
Number of Relay OutputsOption, 8
Acceleration and deceleration rates
  • linear, from 0.1 Hz/s
  • program mode with adjustable time of reaching given frequency
InsulationGalvanic isolation between power and user circuits
Insulation resistance> 5 MOhm
Protection type
  • Overcurrent protection
  • Power switched temperature (IGBT)
  • Max. and min. voltage in the DC link
Communication portModbus
Physical interface
  • 2-wire RS-485/232 for Modbus by default
  • Ethernet (optional) – for communication with ACS /automated control system/
  • wire RS-485/232 for Modbus – for communication with a surface downhole measuring system
Frame TransmissionModbus RTU
up to 115200 bps
Data format8 bits 1 stop bit, no parity
Number of addresses1 .. 255 addresses for Modbus
Access methodslave
Enclosure protectionIP20 (Indoor), NEMA3R
Material of enclosurecarbon steel
Operating temperature-20°С … +60°С (-60°С optional)
Relative humidity95 %
Cooling typeAir forced
  • ISO 9001:2015 Quality management systems – Requirements
  • EN 61439-1 Low-voltage switchgear and control gear assemblies
  • EN 61000-6-4 Electromagnetic compatibility
  • EN 61000-6-2 Electromagnetic compatibility