Stepper Drives

Stepper systems (motor + drive) are open-loop systems which accept digital step & direction inputs provided by an "indexer" or "motion controller" which is basically a programmable pulse generator.

Step & direction commands are typically generated from a PLC (programmable logic controller), signal generator, PC or programmable motion controller.

The sequence of command pulses is "translated" into motion of the motor by the drive ("translator"). The result is a very cost-effective all-digital Smart Motion System.

Electromate is a supplier of stepper drives & systems such as microstep drivers, drivers with oscillators, and more. For more information, speak with an expert today.


Full/Half Step Drivers:

In full step operation, a hybrid stepper motor steps through the normal step angle (e.g. 200 step/revolution) causing the motor to rotate 1.8° per full step, while in half step operation the motor rotates 0.9° per full step. Full step mode is typically used in applications where torque and speed performances are less important, wherein the motor operates at a fixed speed and load conditions are well-defined.

Typically, stepper motors are used in full step mode as replacements in existing stepper motor systems, and not used in new applications. Half step mode generates steps that are half the normal step size. Therefore, this mode provides twice the resolution of full step mode.


Step motor systems can be Open Loop or Closed Loop:

Open Loop System - A system that does not use feedback to verify the desired result, or output, has been reached. Most step motor systems are operated open loop.

Closed Loop System - A system that uses feedback to verify the desired result, or output, has been reached. As an example, a feedback device such as an encoder is commonly used to provide position or velocity information to a motion controller. Closing the position loop with an encoder in an open loop step motor system benefits overall system performance since it provides stall detection, position verification and/or path correction.


Stepper Drives We Carry:

Microstep Drivers

Step motors are commonly driven by microstepping drives. A Microstep Driver applies power to the appropriate step motor winding to produce torque. It precisely divides the current between the motor phases thus positioning the step motor at smaller increments between full steps. It provides higher resolution but with less torque. Microstepping does not increase step accuracy but will allow a motor to run with less noise, minimize low speed resonance effects and produce smooth rotation over a wide speed range. Microstepping is commonly used to increase a motor's resolution. The degree of the improvement depends on the step accuracy of the motor.


Drivers with Oscillators

An oscillator is a device that is used to produce pulses for driving a step motor at a preset speed. In microstep drivers, the oscillator is usually incorporated into the hardware construction of the stepper drive.

In oscillator mode, the pulse input becomes a run/stop signal: when this signal is set low, the motor accelerates to a preset speed and slews. Raising the input high (to 5 volts) causes the step driver to decelerate to rest.


Stepper Drive Advantages:

Stepper motor drives and systems offer exceptional torque and accuracy. They also:

  • Low-cost and easy to use
  • Can be used for high-speed operations but for a limited period
  • Produce full torque at standstill
  • Offer excellent speed control, precise positioning, and repeatability of movement

Applications:

Stepper drives can be used in a variety of applications, including:

  • 3D printing equipment
  • Textile machinery
  • Printing presses
  • Medical imaging machines
  • Robotics
  • CNC milling machines

Industries:


Stepper Drive Products:

Items 31-51 of 51

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  1. STAC5-Q-N220 Microstep Drivers Applied Motion Products
    STAC5-Q-N220

    Digital stepper drive, 94-265 VAC input; 0.5-2.55 A output range, (Ethernet)

  2. STAC5-S-E120 Microstep Drivers Applied Motion Products
    STAC5-S-E120

    Digital stepper drive, 94-135 VAC input; 0.5-5 A output range, (Ethernet)

  3. STAC5-S-E220 Microstep Drivers Applied Motion Products
    STAC5-S-E220

    Digital stepper drive, 94-265 VAC input; 0.5-2.55 A output range, (Ethernet)

  4. STAC5-S-N120 Microstep Drivers Applied Motion Products
    STAC5-S-N120

    Digital stepper drive, 94-135 VAC input; 0.5-5 A output range, (Ethernet)

  5. STAC5-S-N220 Microstep Drivers Applied Motion Products
    STAC5-S-N220

    Digital stepper drive, 94-265 VAC input; 0.5-2.55 A output range, (Ethernet)

  6. STAC6-C Microstep Drivers Applied Motion Products
    STAC6-C

    94-135 VAC Input, 0.5 -6 A Output Range

  7. STAC6-C-220 Microstep Drivers Applied Motion Products
    STAC6-C-220

    94-265 VAC Input, 0.5 -3.2 A Output Range

  8. This stepper drive offers 94-135 VAC Input, 0.5-6 A Output Range.
    STAC6-Q

    94-135 VAC Input, 0.5-6 A Output Range

  9. STAC6-Q-220 Microstep Drivers Applied Motion Products
    STAC6-Q-220

    94-265 VAC Input, 0.5 -3.2 A Output Range

  10. STAC6-Q-H
    STAC6-Q-H

    The only internationally certified hazardous location stepper drive available

  11. STAC6-QE Microstep Drivers Applied Motion Products
    STAC6-QE

    94-135 VAC Input, 0.5 -6 A Output Range

  12. STAC6-QE-220 Microstep Drivers Applied Motion Products
    STAC6-QE-220

    94-265 VAC Input, 0.5 -3.2 A Output Range

  13. The STAC6 is a stepper drive that is a powerful, two-phase, bipolar step motor drive for high-speed, high-torque applications.
    STAC6-S

    94-135 VAC Input, 0.5-6 A Output Range

  14. The STAC6-Si stepper drive is a powerful, two-phase, bipolar step motor drive for high-speed, high-torque applications.
    STAC6-Si

    94-135 VAC Input, 0.5-6 A Output Range

  15. STAC6-Si-220 Microstep Drivers Applied Motion Products
    STAC6-Si-220

    94-264 VAC Input, 0.5 -3.2 A Output Range

  16. STF03
    STF03

    DC-powered microstepping drive. 12-48VDC and 0.1-3.0 A/Phase.

  17. STF06
    STF06

    DC-powered microstepping drive. 12-48VDC and 0.1-6.0 A/Phase.

  18. STF10
    STF10

    DC-powered microstepping drive. 24-70 VDC and 1.0 - 10.0 A/Phase.

  19. The STR2 stepper drive is an ultra compact, digital step & direction drive, great for OEM applications requiring basic step & direction control of a 2-phase step motor.
    STR2

    12-48 VDC Input, 0.3-2.2 A Output Range

  20. The STR4 outputs up to 4.5 A/phase to the step motor, and is compatible with a variety of 2-phase step motors.
    STR4

    24-48 VDC Input, 1.12-4.5 A Output Range

  21. The STR8 drive features advanced microstepping performance and sophisticated current control with anti-resonance.
    STR8

    24-75 VDC Input, 2.35-8.0 A Output Range

Items 31-51 of 51

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