Dual Test 7 – Motor Testing Software

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Product Description

Magtrol’s DUAL TEST 7 is a state-of-the-art motor testing software for PC (Windows® XP sp3/7/8) based data acquisition. Used with a Magtrol Programmable Dynamometer Controller DSP7012, DUAL TEST 7 works on two channels independently with any Magtrol Dynamometer or In-Line Torque Transducer to help determine the performance characteristics of a motors under test. Up to 63 parameters are calculated and displayed utilizing DUAL TEST 7’s feature-rich testing and graphing capabilities.

An integral component of any Magtrol Motor Test System, DUAL TEST 7 performs curve tests in a manner best suited to the overall efficiency of the test rig. Written in LabVIEW™, DUAL TEST 7 has the flexibility to test a variety of motors in a multitude of configurations. The data generated from this user-friendly program can be stored, displayed and printed in tabular or graphical formats, and is easily imported into a spreadsheet.

Magtrol can also make custom modifications to the software to meet additional motor testing requirements.

Features

  • DSP7012 Programmable Controller Support
  • Full independent dual channels control software
  • Supports the optional Analog and Digital I/O Modules on the DSP7012 Programmable Controller.
  • Expanded power analyzer and power supply selections.
  • Programmable analog and digital outputs per step
  • Test speed, torque, amps, watts input, watts output and open loop parameters.
  • Capable of adjusting sampling rate and using step or ramp from one load point to the next.
  • Displays 63 Tested and Calculated Parameters: Torque, speed and auxiliary input are displayed from the DSP7012 Controller; amps, volts and watts from an (optional) power analyzer. Calculated values including horsepower, efficiency, power factor, output watts and time can also be displayed. Optional analog and digital inputs can also be displayed.
  • Three-Phase Power Analyzer Data Acquisition: Obtain data on each individual phase and/or the sum used in the chosen parameters (amps, volts, input watts and power factor).
  • Motor Shaft Direction Indicator: Indicates if the motor is turning clockwise or counterclockwise.
  • USB Interface : Computer interface USB2.0 available with DSP7012. Optional IEEE-488 or RS-232 can be added.
  • PID Adjustment Routines: Helps user adjust the system for ramp and step functions.
  • Graphing Capabilities: Display up to 5 test curves in a single graph; easy-to-read colored and labeled plots with several graph formatting options; manual or auto scaling.
  • Curve Fitting: A curve fitting routine can be applied to most motor test curves. Raw data and curve fit data can also be displayed simultaneously.
  • Save/Load Setup Function: Test procedure configurations may be stored and recalled using standard Windows® file structure

Applications

DUAL TEST 7—besides being well-suited for simulating loads, cycling the unit under test and motor ramping—is also ideal for production line, due to the full dual channels tests functions. Another time-saving feature, that engineering labs will benefit from, is the ability to duplicate tests and run them automatically. This versatile program is extremely valuable to anyone involved in motor testing.

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                    [post_content] => Magtrol’s PT Series T-slot Base Plates are used for creating a basic test rig by mounting a Magtrol Dynamometer, Brake or Torque Transducer in line with the unit to be tested. Depending on the system configuration, a riser may be required to lift the transducer from the baseplate to the shaft height of the brake and/or the motor being tested. Magtrol RTM Riser Kits come complete with attachment hardware for the transducer and T‑nuts and bolts for attachment to the PT Base Plate.
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                    [post_content] => The PC-150 Polarity Changer uses Magtrol’s M-TEST 7 Software to remotely switch the polarity of a DC power supply in order to reverse the direction of the motor under test. When switching polarity, the voltage sense lines will also change in order to maintain the proper polarity on the power supply sense terminals.
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                    [post_content] => Eddy-Current Brake Dynamometers (WB Series) are ideal for applications requiring high speeds and also when operating in the middle to high power range. Eddy-Current Brakes provide increasing torque as the speed increases, reaching peak torque at rated speed. The dynamometers have low inertia as a result of small rotor diameter. Brake cooling is provided by a water circulation system, which passes inside the stator to dissipate heat generated by the braking power, providing high continuous power ratings (max. 140 kW). WB Series Dynamometers integrate a torque measuring system with accuracy ratings of ± 0.3 % to ± 0.5 % full scale, depending on size and system configuration.

Features


    
 	
  • 12 Models with Maximum Torque from 400 mN·m to 560 N·m (56.6 oz·in to 413 lb·ft)
    • 
 	
  • Braking Power: from 500 W to 140 kW
    • 
 	
  • Stable Braking Torque, without Shock
    • 
 	
  • Low Moment of Inertia
    • 
 	
  • Low Residual Torque
    • 
 	
  • Operating Direction CW / CCW
    • 
 	
  • Braking Torque Measurement Integrated
    • 
 	
  • High Rotational Speed (≤ 80 000)
    • 
 	
  • Integrated Optical Speed Sensor
    • 
 	
  • Special designs available upon request
    • 



Operating Principles

The WB Eddy-Current Dynamometers develop their full power at high rotation speeds. The WB Series is particularly intended for motors which rotate at high speeds, up to 80 000 rpm (up to 100 000 rpm with WB 23 / 27; see specific datasheet). The braking torque depends on the rotation speed.

Optical Speed Sensor
Each WB Series Dynamometer is equipped with an optical speed sensor. WB 32 is equipped with a 4 PPR (Pulses Per Revolution) encoder, WB 43 and WB 65 HS are equipped with a 30 PPR encoder; WB 65, WB 115 & WB 15 are equipped with a 60 PPR encoder.
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                    [post_content] => The Powder Brake Dynamometer (PB Series) contains, as its name suggests, a magnetic powder. The electrical current passing through the coil generates a magnetic field, which changes the property of the powder, thus producing a smooth braking torque through friction. They are ideal for applications operating in the low to middle speed range or when operating in the middle to high torque range. Like Hysteresis Brakes, Powder Brakes provide full torque at zero speed. Like the Eddy-Current Brake Dynamometers, the PB series are water-cooled, allowing for power ratings up to 48 kW. The PB Dynamometers have accuracy ratings of ± 0.3% to 0.5% full scale, depending on size and system configuration.

Features


    
 	
  • 9 Models with Maximum Torque from 5 N·m to 1 200 N·m (3.69 lb·ft to 885 lb·ft)
    • 
 	
  • Braking Power: 500 W to 48 kW
    • 
 	
  • Stable Braking Torque
    • 
 	
  • Low Moment of Inertia
    • 
 	
  • Operation in Either Rotational Direction
    • 
 	
  • Braking Torque Measurement Integrated
    • 
 	
  • Integrated Optical Speed Sensor
    • 
 	
  • Special designs available upon request
    • 



Operating Principles

The PB Series - Powder Dynamometers contain, as their name suggests, a magnetic powder. The electrical current passing through the coil generates a magnetic field, which changes the property of the powder, thus producing a smooth braking torque through friction between rotor and stator. The Powder Dynamometers (PB) produce their rated torque at zero speed. The element to be tested can be loaded at standstill to determine the starting torque.

Optical Speed Sensor
Each PB Series Dynamometer has a standard optical speed sensor. PB 43 has an optical speed sensor with a 30 PPR (Pulses Per Revolution); PB 65, PB 115 & PB 15 has an optical speed sensor with a 60 PPR. For higher speed resolution in low speed applications, Magtrol offers a 600 PPR or 6 000 PPR encoder as an option.
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