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Fluke MDA-510 Motor Drive Analyzers

Model:
Fluke MDA-510

Simplify complex motor-drive troubleshooting with guided test setups and automated drive measurements that provide reliable, repeatable test results.

Key Features:

  • Guided testing with graphical step-by-step voltage and current connection diagrams makes setup and connection to variable frequency drives easier than ever
  • Preset measurement profiles collect data based on the chosen test procedure and reduce the need for complex configuration
  • Built-in report writing capabilities make it easy to produce professional as-found and as-left motor-drive troubleshooting reports
 

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Description

The Fluke MDA 510 Motor-Drive Analyzers saves time and eliminates the hassle of setting up complex measurements, while simplifying the troubleshooting process for variable frequency drives. Simply select a test and the step-by-step guided measurements show you where to make voltage and current connections, while the preset measurement profiles ensure you will capture all the data you need for each critical motor-drive section—from the input to the output, the DC bus, and the motor itself

The MDA-510 is the ideal portable motor-drive analysis test tools and can help safely locate and troubleshoot typical problems on inverter type motor-drive systems.

  • Measure key motor-drive parameters including voltage, current, DC Bus voltage level and AC ripple, and voltage modulation.
  • Perform extended harmonics measurements to identify the effects of low and high order harmonics on your electrical power system.
  • Conduct guided measurements for motor-drive input, DC bus, drive output with graphical step-by-step voltage and current connection diagrams.
  • Use simplified measurement setup with preset measurement profiles to automatically trigger data collection based on the chosen test procedure.
  • Create reports quickly and easily that are perfect for documenting troubleshooting and collaborative work with others.
  • Measure additional electrical parameters with full 500 MHz oscilloscope, meter and recording capability for complete range of electrical and electronic measurement on industrial systems.

The Fluke MDA-510 Motor Drive Analyzer uses guided test measurements to make analysis easier than ever.

Drive input

Measure input voltage and current to quickly see whether values are within acceptable limits by comparing the variable frequency drive’s (VFD), also known as a variable speed drive (VSD) or adjustable speed drive (ASD), nominal rated voltage to the actual supplied voltage. Then, check the input current to determine if the current is within the maximum rating and the conductors are suitably sized. You can also check whether the harmonic distortion is within an acceptable level by visually inspecting the waveform shape with total harmonic distortion and individual harmonics.

Voltage and current unbalance

Check the voltage unbalance at the input terminals of the frequency speed drive so you can ensure the phase unbalance is not too high (> 6-8 %), and that the phase rotation is correct. You can also check the current unbalance, as excessive unbalance may indicate a drive rectifier problem.

DC bus

In a motor-drive the conversion of AC to DC inside the drive is critical, having the correct voltage and adequate smoothing with low ripple is required for the best drive performance. High ripple voltage may be an indicator of failed capacitors or incorrect sizing of the connected motor. The record function of the MDA-500 Series can be used to check DC bus performance dynamically in the operating mode while a load is applied.

Drive output

Check the output of the inverter drive focusing both on voltage to frequency ratio (V/F), and voltage modulation. When high V/F ratio measurements are experienced, the motor may overheat. With low V/F ratios, the connected motor may not be able to provide the required torque at the load to sufficiently run the intended process.

Voltage modulation

Measurements of the Pulse Width Modulated signal are used to check for high voltage peaks which can damage motor winding insulation. The rise time or steepness of impulses is indicated by the dV/dt reading (rate of voltage change over time), this should be compared to the motor’s specified insulation. The measurements can also be used to measure switching frequency to identify whether there is a potential issue with electronic switching, or with grounding, where the signal floats up and down.

Motor input

Ensuring that voltage is being supplied at the motor input terminals is key, and the selection of cabling from drive to the motor is critical. Incorrect cabling selection can result in both drive and motor damage due to excessive reflected voltage peaks. Checking that the current present at the terminals is within the motor rating is important as over current condition could cause the motor to run hot, decreasing the life of the stator insulation which can result in the early failure of the motor.

Step-by-step guided measurements ensure you have the data you need, when you need it

The MDA-500 Series is designed to help you quickly and easily test and troubleshoot typical problems on three-phase and single-phase inverter type motor-drive systems. The on-screen information, and step-by-step setup guidance make it easy to configure the analyzer and get the drive measurements you need to make better maintenance decisions, fast. From power input to the installed motor, the MDA-500 provides the measurement capability for the fastest motor-drive troubleshooting.

Product Details
Fluke MDA-510
Attachments
Fluke MDA510_MDA550
Motor Drive Analyzers Datasheet
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