MicroMaster 6SE92 - ECT Sales & Service

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Principles of OperationMICROMASTERMICROMASTER VectorMIDIMASTER Vector2.1.12.1 Properties of Different Control VersionsOperating Mode V/f FCC SVCDigital setpoint resolution 0.01Analogue setpoint resolution10 BitInternal frequency resolution 0.01Speed accuracy- constant torque region- field weakening region>2%
MICROMASTERMICROMASTER VectorMIDIMASTER VectorPrinciples of Operation2.3.1 Merits of COMPOUND BRAKING TM v’s DC Injection and Regenerative BrakingRegenerative Braking• Energy dissipated in external resistor.• Excellent braking torque.• Smooth.• In control.• Speed reduces linearly and smoothly.DC Injection Braking• Energy dissipated in motor.• Poor braking torque.• Smooth.• No control of ramp down.• 30 - 40% effectiveness of regenerative braking.• Stopping of motor shaft unknown.COMPOUND BRAKING• Energy dissipated in motor.• Good braking torque.• In control.• 50-60% effectiveness of regenerative braking.• Speed reduces linearly.• Slight speed ripple may be seen due to oscillating torque -dependent on load inertia.Siemens DA 64 – 1998/99 (04/99) 2/7
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MICROMASTERMICROMASTER VectorMIDIMA
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Communications/InterfacesMICROMASTE
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Inverter Selection and Ordering Dat
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COMBIMASTER & MICROMASTER Integrate
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AppendixMICROMASTERMICROMASTER Vect
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MicroMaster 6SE92 - ECT Sales & Service

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