4-Quadrant Power Supply and Dynamometer Controller (including Manual and Computer-Based Control, Pb-Acid Battery Charger, Turbine Emulator)

4-Quadrant Power Supply and Dynamometer Controller (including Manual and Computer-Based Control, Pb-Acid Battery Charger, Turbine Emulator)

The 4-Quadrant Power Supply and Dynamometer Controller is an A4 module that offers two main operating modes: Power supply and dynamometer. For the dynamometer, a dynamometer motor is also required. In the power supply mode, the unit acts as a versatile four-quadrant voltage or current source, in the dynamometer mode the unit acts as a fully configurable mechanical brake or prime mover.

This unit includes the following firmware functions:

  • Manual Control (8968-1)
  • Computer-Based Control (8968-2)
  • Turbine Emulator (8968-3)
  • Lead-Acid Battery Charger (8968-4)

Refer to these items for more details.

  • Input power: 1 AC/230 V/50 Hz/3 A (max.)
  • Inlet via IEC C14 terminal, must include neutral and ground
  • 3” monochrome LCD display, background-illuminated, 240 x 160 dots
  • Control Input: 0 – ± 10 V
  • Thermistor Input: 10 kΩ, type 1, 2, or 3
  • Type USB 2.0 Communication Port
  • Dimensions (H x W x D): 297 x 266 x 215 mm
  • Weight: 10.5 kg

Power Supply Mode

  • DC Voltage: 0 – ± 150 V
  • AC Voltage (RMS): 0 – 105 V (no-load)
  • DC Current: 0 – ± 5 A
  • AC Current (RMS): 0 – 3,5 A
  • DC Bus: 200 V
  • Maximum Output Power: 500 W
  • AC Frequency: 10 – 120 Hz

Dynamometer mode (requires optional dynamometer motor)

  • Magnetic Torque: 0 – 3 Nm (2 + AS226.55 lbf·in)
  • Direction of Rotation: CW/CCW
  • Speed: 0 – 2500 r/min
  • Nominal Power: 350 W
  • Shaft Encoder (A – B), 360 pulses/revolution – TTL compatible
  • Torque Output Sensitivity: 0.3 Nm/V
  • Speed Output Sensitivity: 250 or 500 r/min/V

Manual Control Specifications

Dynamometer operating modes:

  • Two-Quadrant, Constant-Torque Brake
  • Clockwise/Counterclockwise Prime Mover/Brake
  • Clockwise/Counterclockwise Constant-Speed Prime Mover/Brake
  • Positive/Negative Constant-Torque Prime Mover/Brake

Power supply operating modes:

  • Positive/Negative Voltage Source
  • Positive/Negative Current Source
  • 50/60 Hz Power Source
  • Lead-Acid Battery Float Charger

Computer-Based Control Specifications

Dynamometer operating modes (speed/torque control can be done via software knob, dynamometer knob or control input):

  • Two-Quadrant, Constant-Torque Brake
    – Pulley ratio: 24:24, 24:12 or 24:32
  • Clockwise/Counterclockwise Prime Mover/Brake
  • Clockwise/Counterclockwise Constant-Speed Prime Mover/Brake
  • Positive/Negative Constant-Torque Prime Mover/Brake
  • Four-Quadrant Constant-Speed Prime Mover/Brake
  • Speed Sweep
    – Start and Finish Speed: -3000 – 3000 r/min
    – Number of steps: 0 – 50 steps
    – Step duration: 2 – 10 s
    – Possibility to record data to table automatically
  • Mechanical Load
    – Load types: Flywheel, fan, grinder, conveyor, calender, crane, user defined
    – Inertia: 0.005 – 1 kg·m² (0.119 – 23.73 lb·ft²)
    – Friction Torque: 0.05 – 3 N·m (0.44 – 26.55 lbf·in)

Power supply operating modes (Current/Voltage control can be done via software knob, dynamometer knob or control input):

  • Positive/Negative Voltage Source and DC Voltage Source
  • Positive/Negative Current Source and DC Current Source
  • 50/60 Hz Power Source and AC Power Source
    – 0 – 140 V (no load), 10 – 100 Hz
  • Lead-Acid Battery Float Charger

Wind Turbine Emulator

  • Wind control: via software slider or dynamometer control input
  • Wind speed: 3 – 12 m/s
  • Air density: 1.12 – 1.44 kg/m3
  • Wind turbine type 1.15 m with 3 blades, 1.15 m with 3 blades and gearbox, 0.72 m with 3 blades and passive stall
  • Pulley ratio: 24:24, 24:12, 24:32
  • Inertia: 0.02 – 0.4 kg·m²
  • Gear ratio: 0.5 – 2

Hydraulic Turbine Emulator

  • Vane control: via software slider or dynamometer control input
  • Turbine type: 300 W Francis
  • Vane maximal speed: 0 – 100%/s
  • Runner inertia: 0.05 – 1 kg·m²
  • Pulley ratio: 24:24

Lead-acid battery charger

  • Maximum charge current: 0 – 5 A
  • Gassing voltage: 0 – 150 V
  • 0.1C current: 0 – 5 A
  • Float voltage: 0 – 150 V

Battery discharger

  • Discharge current: 0 – 5 A
  • Discharge duration: 0 – 2000 r/min
  • Cutoff voltage: 0 – 150 V

 

 

Customer Service Line:
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