4-Quadrant Power Supply and Dynamometer Controller

4-Quadrant Power Supply and Dynamometer Controller

The 4Q Power Supply/Dynamometer can perform a wide variety of functions in each of the two operating modes (Dynamometer and Power Supply) and different sets can be enabled by purchasing the right firmware functions. Although they can be purchased separately, Festo has bundled the most popular sets of firmware functions in different packages. Each of these packages is described below.











4-Quadrant Power Supply and Dynamometer Controller (no firmware functions)

This unit does not include any firmware functions. They need to be purchased separately.

  • 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 to 105 V (no-load)
  • DC Current: 0 – ± 5 A
  • AC Current (RMS): 0 – 3.5 A
  • Maximum Output Power: 500 W
  • AC Frequency: 10 – 120 Hz

Dynamometer mode: (requires optional dynamometer motor)

  • Magnetic Torque: 0 – 3 Nm
  • 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
 


4 Quadrant Power Supply and Dynamometer Controller (including Manual and Computer-Based Control)

This unit includes the following firmware functions:

  • Manual Control (8968-1)
  • Computer-Based Control (8968-2)

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 to ± 150 V
  • AC Voltage (RMS): 0 to 105 V (no-load)
  • DC Current: 0 to ± 5 A
  • AC Current (RMS): 0 to 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



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

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

 

Type

 

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