We then drive technical information for the AC motor Speed ​​Brand: SIEMENS MICROMASTER VECTOR manufacturer.

6SE32 MICROMASTER Vector / Vector 6SE32 MIDMASTER

• Speed ​​Control V / F open loop for one or more asynchronous, synchronous or reluctance

• Output frequency from 0 - 650 Hz (400 Hz to 6SE92) with resolution to 0.01 Hz

• Overload torque up to 50% as a percentage of nominal output current for 60s.

• Integrated PID controller for p. eg., pressure or temperature control.

• RS485 serial interface.

• External Brake Control.

• Flying start for the rotating motor control.

• Automatic restart after boot failure or accidental disconnection.

• Flexible adjustment of the frequency setpoint via fixed frequency, analog input, motor potentiometer or serial interface.

• Flexible control of maneuvering through the front panel digital input so serial interface.

• DC Brake configurable.

• Compound braking to dynamic braking control without external elements.

• Speed ​​references for analog input additive and digital speed setpoint / control fixed frequency from different sources.

• Programmable ramp generator (0 - 650s) capable of smoothing curves.

• 8 configurable fixed frequencies (7 to 6SE92).

• 4 frequency bands inhibited to suppress resonances.

• EMC Filter Standard Built for Compliance EN55011 Class A single-phase units.

Additional features in the series 6SE32

• Sensorless Vector Control to improve the dynamic characteristics of standard induction motors.

• 100% overload as a percentage of rated current for 3 seconds.

• Integrated braking module configurable braking cycles (MICROMASTER Vector).

Options

• Radio interference filter against type "footprint" for 208 - 240V / 380-500V, which complies with EN 55011 Class A or B (MICROMASTER and MICROMASTER Vector).

• Filtering external radio interference from 208 to 240 V/380 - 500 V - EN 55011 compliant Class A or B (MIDIMASTER Vector).

• Switching coils.

• Braking resistors (MICROMASTER Vector, Vector MIDIMASTER).

• Braking units (MIDIMASTER Vector).

• Output filters dV / dt. Output reactors.

• SIMOVIS programming software for programming and implementation in Windows 95 or Windows NT.

• CB15 PROFIBUS.

• CAN Bus Module, which supports the CAN OPEN protocol.

Sensorless Vector Control

Most applications do not need or can justify the additional cost of a converter encoder to simulate the function of the encoder, a software algorithm, you need to quickly calculate rotor position and verify, using a mathematical model, the fundamental characteristics of motor.

To do this the drive must:

• Monitor voltage and current output very quickly. Calculating the motor parameters (stator and rotor resistance, inductance, insulation, etc.)..

• quickly calculate the characteristics of the motor thermal model.

• Enter the parameters of the motor nominal working conditions.

• Having a mathematical calculation capacity very quickly. This is done through a custom integrated circuit designed for this application (ASIC);

• The floating point processor. (F ² P ²).

SIEMENS, a pioneer in this technology, has entered into a standard product, almost all functionality of the closed-loop Vector control without encoder.

This has been achieved through the use of floating-point processor, which performs millions of calculations per second needed for the demanding conditions of functionality.

As a result, the minimum torque increases to 150% at 0.5 Hz and up to 200% at 2.5 Hz while maintaining the level of performance over the entire temperature range due to the adaptive mathematical thermal model of the engine.

The complete series MICRO / MIDIMASTER Vector provides an overload capacity of up to 200% for 3 seconds, making them particularly suitable for rugged applications in cranes or lifts.

The calculation of the constants of the motor is not necessary as this is done automatically, leaving the user with a single gain parameter for fine adjustment of certain applications of inertia and, in most cases, you can leave the setting factory.

Floating Point Processor

The sensorless vector control is a process of real-time control of a complex that can be implemented by using DSP processors, RISC processors or multiple microprocessors. The Siemens solution set time consumption of the microprocessor and includes mathematical floating-point processors tailored to the application (ASIC). The floating point capabilities means that the control equations are implemented without any intermediate steps of upscaling. This system prevents overflow arithmetic, with the same speed of calculation. The end result is a simple product with excellent performance. The floating point processor is implemented using combinatorial logic entirely, but more, the term "Flash Floating Point Processor" means performance levels to 3 Mflops. The algorithms used in the MICRO / MIDIMASTER Vector are identical to those used in our renowned MASTERDRIVE equipment.

Sensorless Vector Control Benefits

• Excellent speed control with automatic sliding.

• High torque at low speed without applying excessive DC component (boost).

• Low loss, high performance.

• Enhanced Dynamic characteristics - better response to load changes.

• stable operations with large motors.

• Better performance in the current limitation with improved slip control.