System Description

The IRPT2051C powIRTRAIN provides the complete power conversion function for a 3hp (2.2kW) variable-frequency, variable-voltage, AC motor controller. The powIRTRAIN combines a power assembly IRPT2051A with a Driver-Plus Board IRPT2051D. Figure 1 shows the block diagram of the powIRTRAIN within an AC motor control system.

· 3 hp (2.2kW) motor drive

Industrial rating at 150 overload for 1 minute

· 380 - 480V AC, 50/60Hz

· Available as complete system or sub-system assemblie

Power Module

· 3-phase rectifier bridge

· 3-phase, short circuit rated, ultrafast IGBT inverter

· Brake IGBT and diode

· Low inductance (current sense) shunts in positive and negative DC rail

· NTC temperature sensor

· Pin-to-base plate isolation 2500V rms

· Easy-to-mount two-screw package

· Case temp. range -25° deg C to 125 deg C operational

Driver-Plus Board

· DC bus capacitor filter with NTC inrush current limiter

· IR2233 monolithic 3-phase HVIC driver

· Driver stage for brake transistor

· On-board +15V and +5V power supply

· MOV surge suppression at input

· DC bus voltage and current feedback

· Protection for short-circuit, earth/ground fault, overtemperature and overvoltage

· Terminal blocks for 3-phase input/output and brake connections