Data Acquisition and Control Interface

Data Acquisition and Control Interface

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The Data Acquisition and Control Interface (DACI) is verstatile and complete device in an A4 module used for measuring, observing, and analyzing electrical and mechanical parameters in electric power systems and power electronics circuits. For these purposes, a set of computer-based instruments are available. All measurements require a USB connection to a PC running the accompanying data acquisition and control software. This software, as well as all available upgrades, is free and can be downloaded anytime on the Festo Didactic website.

Download LVDAC-EMS here

Together, the DACI and the data acquisition and control software allow training in various areas such as electric power technology, DC/AC machines, renewable energy, transmission lines, and power electronics using modern and versatile measuring instruments.

Each unit can be customized with specific firmware functions at anytime to suit your labs specific needs in terms of data acquisition features and power electronic controllers. The different unit below represent the most popular bundles with the right firmware functions.


Data Acquisition and Control Interface (including complete computer-based instrumentation for all inputs)


Auxiliary power

  • Input voltage: 24 V/50 – 60 Hz
  • Input current: 0.4 A (max.)

Insulated Voltage Inputs

  • Number of input channels: 4
  • Input range: (Low / High Scales): -80 – +80 V/-800 to + 800 V (user-selectable through software)
  • Impedance (Low / High Scales): 326.6 kΩ/3.25 MΩ
  • Bandwidth: DC to 65 kHz (-3 dB)
  • Accuracy: 1% (dc to 10 kHz)
  • Insulation: 800 V between input channels, 400 V versus ground
  • Maximum Voltage (Any Terminal vs GND): 283 V AC/400 V DC
  • Measurement Category: CAT II (283 V AC/400 V DC versus ground)

Insulated Current Inputs

  • Number of input channels: 4
  • Range (Low / High Scales): -4 to +4 A/-40 to +40 A (25A rms)
  • Impedance (Low / High Scales): 50 mΩ/5 mΩ
  • Bandwidth: DC to 65 kHz (-3 dB)
  • Accuracy: 1% (dc to 10 kHz)
  • Insulation: 800 V between input channels, 400 V versus ground
  • Maximum Voltage (Any Terminal vs GND) 283 V AC/400 V DC

Analog Inputs

  • Number of input channels: 8
  • Voltage Range: -10 to +10 V
  • Impedance: > 10 MΩ
  • Bandwidth: DC to 125 kHz
  • Measured Parameters: User-selectable through software
  • Parameter-to-Voltage Ratio: User-determined through software
  • Measurement Category: CAT II (283 V AC/400 V DC versus ground)

A/D Converter for Insulated and Analog Inputs

  • Number of channels: 16
  • Type: Successive approximation
  • Resolution: 12 bits
  • Integral Non-Linearity: ≤ ±1,5 LSB
  • Differential Non-Linearity: ≤ ±1 LSB
  • Maximum Sampling Rate: 600 ksamples/s (one channel)
  • FIFO Buffer Size: 16K samples

Analog Outputs

  • Number of channels: 2
  • Voltage Range: -10 – +10 V
  • Operational Load Impedance: > 600 Ω

D/A Converter for Analog Outputs

  • Number of channels: 2
  • Type: Resistor string
  • Resolution: 12 bits
  • Integral Non-Linearity: ≤ ±8 LSB
  • Differential Non-Linearity: -0.5 – +0.7 LSB

Digital Inputs

  • Number of channels: 3
  • Types: Encoder (2), synchronization (1)
  • Signal Level: 0 – 5 V (TTL compatible)
  • Maximum Input Frequency: 50 kHz
  • Impedance: 5 kΩ

Digital Outputs

  • Number of channels: 9
  • Types: Control (6 on a DB9 connector and 2 on 2 mm banana jacks), synchronization (1 on a DB9 connector)
  • Signal Level: 0 – 5 V (TTL compatible)
  • Maximum Output Frequency: 20 kHz (software-limited)
  • Impedance: 200 Ω

Computer Interface: USB 2.0 full speed via type-B receptacle

Physical Characteristics

  • Dimensions (H x W x D): 297 x 266 x 140 mm
  • Weight: 4.6 kg



Data Acquisition and Control Interface (including computer-based instrumentation for 1x current input and 1x voltage input)

Auxiliary power

  • Input voltage: 24 V/50 – 60 Hz
  • Input current: 0.4 A (max.)

Insulated Voltage Inputs

  • Number of input channels: 1
  • Input range: (Low/High Scales): -80 – +80 V/-800 – + 800 V (user-selectable through software)
  • Impedance (Low/High Scales): 326,6 kΩ/3,25 MΩ
  • Bandwidth: DC to 65 kHz (-3 dB)
  • Accuracy: 1% (dc to 10 kHz)
  • Insulation: 800 V between input channels, 400 V versus ground
  • Maximum Voltage (Any Terminal vs GND): 283 V AC/400 V DC
  • Measurement Category: CAT II (283 V AC/400 V DC versus ground)

Insulated Current Inputs

  • Number of input channels: 1
  • Range (Low/High Scales): -4 – +4 A/-40 – +40 A (25A rms)
  • Impedance (Low/High Scales): 5 mΩ/50 mΩ
  • Bandwidth: DC – 65 kHz (-3 dB)
  • Accuracy: 1% (dc to 10 kHz)
  • Insulatio:n 800 V between input channels, 400 V versus ground
  • Maximum Voltage (Any Terminal vs GND) 283 V AC/400 V DC

All other inputs and outputs are deactivated in this version. They can be reactivated by purchasing the right firmware functions.

Computer Interface: USB 2.0 full speed via type-B receptacle

Physical Characteristics

  • Dimensions (H x W x D): 297 x 266 x 140 mm
  • Weight: 4.6 kg



Data Acquisition and Control Interface (including computer-based instrumentation for 2x current inputs and 2x voltage inputs)

Auxiliary power

  • Input voltage: 24 V/50 – 60Hz
  • Input current: 0.4 A (max.)

Insulated Voltage Inputs

  • Number of input channels: 2
  • Input range: (Low/High Scales): -80 – +80 V/-800 – + 800 V (user-selectable through software)
  • Impedance (Low/High Scales): 326.6 kΩ/3.25 MΩ
  • Bandwidth: DC to 65 kHz (-3 dB)
  • Accuracy: 1% (dc to 10 kHz)
  • Insulation: 800 V between input channels, 400 V versus ground
  • Maximum Voltage (Any Terminal vs GND): 283 V AC/400 V DC
  • Measurement Category: CAT II (283 V AC/400 V DC versus ground)

Insulated Current Inputs

  • Number of input channels: 2
  • Range (Low/High Scales): -4 – +4 A/-40 – +40 A (25 A rms)
  • Impedance (Low/High Scales): 5 mΩ/50 mΩ
  • Bandwidth: DC to 65 kHz (-3 dB)
  • Accuracy: 1% (dc to 10 kHz)
  • Insulation: 800 V between input channels, 400 V versus ground
  • Maximum Voltage (Any Terminal vs GND) 283 V AC/400 V DC

All other inputs and outputs are deactivated in this version. They can be reactivated by purchasing the right firmware functions.

Computer Interface: USB 2.0 full speed via type-B receptacle

Physical Characteristics

  • Dimensions (H x W x D): 297 x 266 x 140 mm
  • Weight: 4.6 kg

 

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