Fluke MDA 550-III Motor Drive Analyser
The Fluke MDA 550-III Motor Drive Analyser is a portable, four-channel test instrument designed to help engineers check and troubleshoot inverter-type motor drive systems. It combines motor drive analysis, waveform analysis and data logging in one unit, with a bandwidth of 500MHz. Its guided test functions help users find faults and assess key electrical measurements across different parts of a motor drive system.
Built for detailed motor drive testing, the analyser provides guided measurements for the drive input, DC bus, drive output, motor input and motor shaft. Users can select a test and follow clear, step-by-step instructions, including diagrams showing voltage and current connections. The Fluke MDA 550-III Motor Drive Analyser also uses preset measurement profiles to collect relevant data for each test, making it easier to carry out repeatable checks and review results.
In addition to electrical measurements, the instrument supports voltage modulation analysis, harmonic measurements and motor shaft voltage discharge testing. An integrated report generator allows users to create as-found and as-left reports from recorded measurements, while FlukeView-2 software supports data transfer and further review. With a CAT IV 600V / CAT III 1000V safety rating, the Fluke MDA 550-III Motor Drive Analyser provides a practical solution for detailed motor drive testing at the service entrance and downstream.
Key Benefits
- Combines motor drive analysis, waveform analysis and data logging in one portable instrument.
- Four input channels and 500MHz bandwidth support detailed electrical measurements.
- Guided test setups simplify motor drive fault finding and help users follow the correct measurement sequence.
- Step-by-step connection diagrams make voltage and current test connections easier to understand.
- Preset measurement profiles help capture relevant data consistently across key motor drive sections.
- Voltage and current unbalance measurements help identify differences between phases.
- Harmonic and voltage modulation measurements provide greater visibility of drive input and output behaviour.
- Motor shaft voltage measurements help identify shaft voltage discharge events.
- Integrated report generation makes it easier to document test results before and after maintenance.
- CAT IV 600V / CAT III 1000V safety classification supports testing at the service entrance and downstream.
Common Applications
The Fluke MDA 550-III Motor Drive Analyser is suitable for a range of testing, maintenance and inspection tasks, including:
- Troubleshooting inverter-type motor drive systems.
- Measuring voltage, current and frequency at the motor drive input.
- Checking DC bus voltage levels and AC ripple.
- Assessing voltage and current unbalance across three-phase systems.
- Analysing PWM voltage at motor drive outputs.
- Measuring voltage modulation, rise time and overshoot.
- Checking motor input voltage and current.
- Measuring motor shaft voltage discharge events.
- Carrying out voltage and current harmonic analysis.
- Recording motor drive measurements and producing as-found and as-left reports.
Why Choose This Model?
The Fluke MDA 550-III Motor Drive Analyser combines a four-channel, 500MHz waveform analyser with guided motor drive testing, shaft voltage measurements and integrated reporting. Its preset measurement profiles and CAT IV 600V / CAT III 1000V safety rating make it well suited to detailed motor drive fault finding and maintenance.
Frequently Asked Questions
What is the Fluke MDA 550-III Motor Drive Analyser used for?
The Fluke MDA 550-III Motor Drive Analyser is designed for testing, troubleshooting and maintaining inverter-type motor drive systems. It combines motor drive analysis, waveform analysis and data logging in one portable instrument. Engineers can use it to measure electrical signals, identify motor drive faults and record test results.
How many channels does the Fluke MDA 550-III have?
The Fluke MDA 550-III has four input channels and a bandwidth of 500MHz. This allows users to capture and analyse voltage and current signals across different parts of a motor drive system.
What measurements can the Fluke MDA 550-III perform?
The analyser measures voltage, current, frequency, DC bus voltage, AC ripple, voltage and current unbalance, harmonics and voltage modulation. It also supports peak voltage measurements, rise and fall time analysis, overshoot measurements and motor shaft voltage discharge testing.
Can the Fluke MDA 550-III test variable-speed motor drives?
Yes. The Fluke MDA 550-III is designed to troubleshoot inverter-type motor drive systems, including variable-speed drives. It provides guided measurements at the drive input, DC bus, drive output, motor input and motor shaft. Users can also measure the voltage-to-frequency ratio (V/Hz) on variable-speed motor drives.
Does the Fluke MDA 550-III provide guided test procedures?
Yes. The analyser includes guided test setups with step-by-step instructions and graphical connection diagrams. Users select the required measurement, and the instrument provides guidance on voltage and current connections. Preset measurement profiles also help ensure consistent data collection during testing.
Can the Fluke MDA 550-III measure DC bus ripple?
Yes. The analyser measures DC bus voltage and AC ripple. Available DC bus measurements include DC voltage, peak-to-peak voltage and maximum peak voltage. Ripple measurements include AC voltage, peak-to-peak voltage and frequency.
Can the Fluke MDA 550-III measure motor shaft voltage?
Yes. The Fluke MDA 550-III supports motor shaft voltage measurements and discharge event analysis. It can measure peak-to-peak shaft voltage, voltage difference, rise and fall time, voltage change over time (dV/dt) and discharge events per second. The supplied SVS-500 shaft voltage set includes three brushes, a probe holder, a two-piece extension rod and a magnetic base.
Does the Fluke MDA 550-III measure harmonics?
Yes. The analyser supports voltage and current harmonic measurements from DC to the 51st harmonic. Measurements include fundamental voltage or current, fundamental frequency and total harmonic distortion (THD). Current harmonic analysis also supports total demand distortion (TDD).
Can the Fluke MDA 550-III measure PWM voltage?
Yes. The analyser includes a PWM voltage measurement function for pulse width modulated signals, such as motor drive inverter outputs. It calculates effective voltage using the average value of samples taken over a whole number of periods of the fundamental frequency. This allows users to assess voltage at the drive output and motor input.
Can the Fluke MDA 550-III measure voltage and current unbalance?
Yes. The instrument measures voltage and current unbalance at the motor drive input, drive output and motor input. It calculates unbalance as the highest percentage difference between an individual phase and the average of the three phase measurements. This helps users identify differences between phases during motor drive testing.
What is the maximum voltage measurement range of the Fluke MDA 550-III?
The Fluke MDA 550-III can measure up to 1000V to ground using a 10:1 or 100:1 voltage probe. This maximum applies to DC voltage, True RMS voltage and peak voltage measurements. The applicable safety ratings and probe requirements must be observed when making measurements.
What is the frequency measurement range of the Fluke MDA 550-III?
The analyser has a frequency measurement range of 1.000Hz to 500MHz. Its frequency measurement accuracy is ±(0.5% + 2 counts), with a full-scale reading of 9999 counts.
What safety rating does the Fluke MDA 550-III have?
The Fluke MDA 550-III has a CAT IV 600V / CAT III 1000V measurement safety rating under IEC 61010-2-030. It also complies with IEC 61010-1, Pollution Degree 2. The direct BNC inputs are rated at 300V CAT IV, while the stated higher measurement ratings apply when using the appropriate voltage probes.
Can the Fluke MDA 550-III record measurement data?
Yes. The Fluke MDA 550-III includes a recording data logger and preset measurement profiles. These profiles trigger data collection according to the selected test procedure. The instrument also includes an integrated report generator for creating as-found and as-left reports.
Can measurement results be transferred to a computer?
Yes. Measurement data can be transferred to a computer using a USB memory stick, a mini-USB to USB cable or a Wi-Fi link. The analyser supports USB memory sticks of 32GB or less and includes the full version of FlukeView-2 PC software for ScopeMeter.
Does the Fluke MDA 550-III include reporting software?
Yes. The Fluke MDA 550-III includes an integrated report generator and the full version of FlukeView-2 PC software. Users can create as-found and as-left reports and transfer measurement data for further review. Reports can typically contain 50 saved screens, depending on the compression ratio.
What type of battery does the Fluke MDA 550-III use?
The Fluke MDA 550-III uses a BP291 lithium-ion battery. A BP291 battery and BC190 charger/power adapter are included with the instrument.
Are voltage probes and current clamps included with the Fluke MDA 550-III?
Yes. The instrument includes three VPS421 high-voltage probes with alligator clips, one VPS410-II-R voltage probe and three i400s AC current clamps. These accessories support voltage and current measurements across the motor drive system.
What accessories are included with the Fluke MDA 550-III?
The Fluke MDA 550-III is supplied with a BP291 lithium-ion battery, BC190 charger/power adapter, three VPS421 high-voltage probes, one VPS410-II-R voltage probe and three i400s AC current clamps. It also includes the SVS-500 shaft voltage set, a large protective carrying case with rollers, FlukeView-2 PC software and a Wi-Fi dongle.
