Magtrol WB Series User Manual

Contents

Magtrol WB Series User Manual Manual pdf 19 page image

9Magtrol WB/PB Dynamometers Chapter 1 – Introduction1.2.2 WB/PB 43 SerieSWB/PB 43Data SheetWB/PB 43 Series Eddy-Currentand Powder Dynamometers1 www.magtrol.comMAGTROLFeatures• 4 Models with Maximum Torque from 1.5 N·m to 10N·m (1.1 lb·ft to 7.3 lb·ft)• Braking Power: 0.5 kW to 3 kW• Stable Braking Torque, without Shock• Low Moment of Inertia• Low Residual Torque• Operation in Either Rotational Direction• Braking Torque Measurement Included• High Rotational Speed• Rated Torque Available From Zero Speed (PowderDynamometers)• Integrated Optical Speed SensorDescriptionEddy-Current Brake Dynamometers (WB series) are ideal forapplications requiring high speeds and also when operating inthe middle to high power range. Eddy-Current Brakes provideincreasing torque as the speed increases, reaching peak torqueat rated speed. The dynamometers have low inertia as a resultof small rotor diameter. Brake cooling is provided by a watercirculation system, which passes insidethe stator to dissipate heat generated bythe braking power. The water coolingin the WB provides high continuouspower ratings (max. 3 kW).Powder Brake Dynamometers (PBseries) are ideal for applications operatingin the low to middle speed range orwhen operating in the middle to hightorque range. Powder Brakes providefull torque at zero speed and are water-cooled, allowing for power ratings up to 1 kW. Both WB andPB Dynamometers have accuracy ratings of ±0.3% to ±0.5% fullscale, depending on size and system configuration.applicationsMounted on test benches, WB/PB 43 Series Dynamometersallow performance and reliability testing on driving elementssuch as electric motors, combustion engines, hand-held drills,windshield wiper motors, servomotors, fans, geared motors,reduction gears, pneumatic equipment, hydraulic transmissionsystems and motors for domestic appliances.Motor testing sYsteMsMagtrol’s M-TEST 7 Software is a state-of-the-art motortesting program for Windows®-based data acquisition. Usedwith a Magtrol DSP7000 Programmable DynamometerController, Magtrol M-TEST 7 Software provides the controlof any Magtrol Eddy-Current or Powder Brake Dynamometerand runs test sequences in a manner best suited to the overallaccuracy and efficiency of the MagtrolMotor Test System. The data that isgenerated by Magtrol’s Motor TestingSoftware can be stored, displayed andprinted in tabular or graphic formats,and can be easily imported into aspreadsheet.Written in LabVIEW™, M-TEST 7 hasthe flexibility to test a majority of motortypes in a variety of ways. Because ofLabVIEW’s versatility, obtaining datafrom other sources (e.g. thermocouples), controlling motorpower and providing audio/visual indicators is relatively easy.Magtrol’s M-TEST 7 Software is ideal for simulating loads,cycling the unit under test and motor ramping. Because it iseasy to gather data and duplicate tests, the software is idealfor use in engineering labs. Tests can be programmed to runon their own and saved for future use allowing for valuabletime savings in production testing and incoming/outgoinginspection.Model 2 WB 43Eddy-Current DynamometerMagtrol offers three types of dynamometerbrakes to absorb load: Hysteresis, Eddy-Current and Magnetic Powder. Each typeof Dynamometer has advantages andlimitations and choosing the correct one willdepend largely on the type of testing to beperformed. With over 50 models to choosefrom, Magtrol Sales professionals are readilyavailable to assist in selecting the properDynamometer to meet your testing needs.