High accuracy stepper motors and stepper motor controllers with full software control.

Our Stepper Motors and Controllers deliver accurate, reproducible trouble free operation and are available in several formats:

Movement controlled with motor encoder
When there is a requirement to accurately determine the number of executed motor steps. The motor encoder module is integrated directly onto the stepper motor. The default encoder resolution of 400 pulses/revolution is recommended for standard motors with 200 steps/revolution, and can work in half step mode (400 half-steps/revolution).

Movement controlled with external encoder
When accurate and reliable information is required for a particular movement axis, it is possible to mount an external encoder on the end of the axis. The movement is then strictly controlled by encoder and the stepper motor device compensates for mechanical imperfections, such as gear backlash, nonlinearity, non-supported mechanical stresses etc.

Movement controlled with sensor switches
The stepper motor movement is controlled and limited by limit switches (this is the default setting). Limit switches halt either forward or backward movement immediately once they are tripped. They are normally only used as safety limit switches. It is possible to use up to 10 sensors for controlling the movement, positioning within a critical area or setting the reference position for the encoder. The signals from the sensors can immediately control the stepping motor or can be simply transmitted to and read by the control software application.

Movement functions
The Stepper Motor Control Devices can provide the following movement functions:
- Movement Velocity
- Motor Run Current
  Sets the current in the motor coil during normal movement
- Motor Stop current
  Sets the current in the motor coil when the motor is stopped. This is used to control the stop force to guarantee repeatability of movement.
- Movement Acceleration
  Sets the acceleration time to prevent step losses during acceleration when the stepper motor system experiences a larger torque, or inertia.
- Movement Deceleration
  Sets the acceleration time to prevent step losses during deceleration when the stepper motor system experiences a larger torque, or inertia.
- Movement Backlash Offset
  Calculates backlash offset in movement when the motor direction is changing.

Application
The Stepper Motor Controllers provide accurate, reliable and long-term control of our range of stepper motor controlled transfer devices such as manipulators, sample transferring systems, table positioning etc.

SMCD10

The SMCD10 Stepper Motor Controller is designed for controlling low power stepper motors in applications where high speed and high torque is not very important. The SMCD10 device is mainly recommended for precision transfer systems, e.g. manipulators, sample transfer systems etc.
 

SMCD20

The SMCD20 Stepper Motor Controller is designed for controlling the higher power stepper motors in applications where either higher speeds and/or higher torques than can be delivered by the SMCD10 are required. The SMCD20 device is mainly recommended for precision transfer systems, e.g. manipulators, sample transfer systems etc.
 

If you have any questions, or to request a quotation, please contact us.