BBI servo motor and drive module

INTERNATIONAL Rectifier, represented by Soanar Plus, has introduced the PIIPM15P12D007 servo and motor drive module, rated at 1200V 15A, a single unit that includes the bridge, brake and inverter (BBI) functions.

Servo and motor controls are used in precision industrial machinery such as assembly robots, pharmaceutical manufacturing, food processing and semiconductor fabrication. Other applications include conveyor belts, air conditioning systems and elevators.

The PIIPM15P12D007 expands the International Rectifier iNTERO family of motor and servo drive modules, and is a closed-loop control building block for high performance induction and brush-less motor and servo drives.

In motion control applications, it is important to protect the motor from damage. Protection circuits in the new "007" module are designed to disable PWM operation and use a "double path" technique that assures redundancy and safety. De-saturation, over-voltage and fault protection are enabled by IR's new IR2214SS high voltage ICs.

“The new “007” device includes servo-motor power stages as well as a programmable digital core and its interfaces, and is intended to be the fundamental building block for every digital motion control application,” Stephen Tsang, senior vice president of sales at International Rectifier said.

The BBI module includes high-performance sensing and protection circuits, such as current-sensing with greater than 10kHz bandwidth and a latency of less than five microseconds on two motor phase outputs.

Full protection from line-to-line and ground-fault failures, phase-to-phase, phase-to-ground, phase-to-dc bus and leg shoot-through are included, as well as under- and over-voltage on the dc bus.

An embedded flyback power supply generates all internal supplies from a single 15V input. In addition, all fault conditions are fed back to the DSP for software control after the fault conditions are detected.

The new module features an internally programmable TMS320LF2406A family DSP (40 MIPS) with a 64Kbit IIC EEPROM to store calibration data, freeing memory resources from the DSP.

Interfaces include a controller area network (CAN), joint action test group (JTAG) IEEE 1149.1 standard port for program downloading and debugging, an asynchronous, isolated 2.5Mbps serial port and a synchronous-isolated 10Mbps serial port for DSP communication and programming.

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