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Micromech has launched the PD86-1180 PANdrive, an 86mm stepper motor with integrated controller/driver, Coolstep and Sensostep encoder for sensor-less load-dependent current control.

This allows the energy-efficient operation of an open-loop stepper motor system, the company said.

With the Stallguard2 feature, the load of the motor can be detected with high resolution.

The PANdrive can be controlled via USB, CAN, RS232 or RS485 interface and the power supply, interface and the multi-purpose I/Os can be connected with JST connectors.

There are step/direction/enable inputs (with optical coupling): two inputs for stop switches (24V compatible), one input for reference/homing switch (24V compatible) and one shutdown input.

The nominal supply voltage range is 24V to 48V.

In addition, there are four general-purpose inputs: two 24V compatible and two pen collector.

There is an incremental encoder input (ABN, single ended) and two general-purpose outputs (open collector).

The Spreadcycle chopper allows the highest smoothness, as well as high-speed operation, Micromech said.

The internal Sensostep encoder can be used to detect step loss or to control the target position and the PD86-1180 comes with the PC-based software development environment TMCL-IDE for the Trinamic Motion Control Language (TMCL).

Using predefined TMCL high-level commands, such as ‘move to position’ or ‘constant rotation’, a rapid development of motion control applications is guaranteed.

Communication traffic is kept low since all time-critical operations, for example, ramp calculations are performed on board.

The TMCL programme can be stored in the on-board EEPROM for standalone operation and the firmware of the module can be updated via the serial interface.

In addition, as an option, CANopen firmware is available.

The motor is 5.5A, with a flange size of 86mm (NEMA34), a shaft diameter of 12.7mm, and a length of 31.75mm with D-cut.

The PD86-1180 features up to 256 times microstepping/51,200 pos/rev, memory for 2,048 TMCL commands, Stallguard2 sensor-less high-resolution motor load detection, Coolstep load-dependent current control and Spreadcycle chopper for improved smoothness and high-speed operation.

Other features include: Microplyer internal microstep multiplier (16 to 256 uSteps) for lower frequency on step input; integrated absolute Sensostep encoder (maximum 256cpr); automatic ramp generation in hardware; and on-the-fly alteration of motion parameters, including position, velocity and acceleration.

Micromech

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