Motor Drive Analyzers provide complete three-phase electrical and mechanical power analysis with static power results in a convenient, configurable Numeric table and dynamic power displayed as per-cycle Waveforms. Motor speed, position, and torque integration are the most complete available. Zoom+Gate mode provides ability to understand and isolate dynamic behaviors. Long memory, 8 analog input channels (MSO optional) with high resolution (12-bits), sample rate, bandwidth and memory (up to 250 Mpt/ch) provides unique capability to perform complete system debug on the inverter subsection, embedded control system, and motor mechanical performance.

Key Features

• Oscilloscope + Power Analyzer in one instrument
  • Static power analysis (like a power analyzer)
  • Dynamic power analysis (unique to the MDA)
  • Complete system debug capabilities (unique to the MDA)
• Zoom+Gate
• Comprehensive speed and torque interface
• Harmonics Analysis option (MDA800-HARMONICS)
• Intuitive, graphical user interface

The Motor Drive Analyzer is built on the 8ch/12-bit HDO8000A platform. It contains all of the advanced oscilloscope capability you need for embedded control debug plus three-phase power and mechanical analysis with accuracy to within 1% of a dedicated power analyzer instrument.

Like a power analyzer, the MDA can acquire short records under steady-state operating conditions and provide fast updates of mean value power quantities in the Numerics table. Power quantities can be calculated on a line frequency AC period, a variable frequency PWM output period, or over a very short time period, such as the device switching period.

Long memory (up to 250 Mpts/ch) permits capture and analysis of long periods of time (e.g. 25 seconds at 10 MS/s). Touch a Numerics table cell and create a per-cycle "synthesized" Waveforms of the parameter over time.Zoom+Gate adds further value for dynamic analysis. Correlate complex drive behaviors to other control or power system waveforms, and debug drive system problems faster.

Power Analyzer instruments perform only one function, and typical 4 channel oscilloscopes have limited capabilities for three-phase power system analysis. The Motor Drive Analyzer has 8 analog input channels (+16 optional digital channels) and three-phase power analyzer capability to debug the complete motor drive system.

Zoom your acquisitions and Gate both the Numerics measurement table and the per-cycle Waveforms to the zoomed area. Gain deeper and faster understanding of complex drive and control system behaviors.

Apply a discrete fourier transform (DFT) harmonic filter to acquired voltage and current waveforms. Harmonically filter Numerics table results more accurately than brute force hardware filters. Display per-order Harmonics in a table along with up to 9 spectral waveforms. View per-cycle THD values over time.

Interface digital or analog speed sensors with Angle Tracking Observer filtering. Extract speed information from CAN serial data. Use digital (MSO) inputs to conserve valuable analog channels. Interface a variety of torque sensors, extract torque from CAN serial data, or infer torque from motor current and a known torque constant. At your bench, calculate motor Speed and Torque without additional expensive equipment.

An easy-to-understand user interface guides the operator through setup and analysis. Setup capability is provided for any combination of single-phase or three-phase drive input/output. Quick buttons provide fast access to advanced capabilities.