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EZSV10 Servo Control from AllMotion

Servo Motor Controllers

AllMotion, a brand of American Control Electronics, designs and manufactures miniature high-performance stepper and servo drives.

The EZServo was designed to allow the rapid implementation of Brush DC motor solutions in products requiring automation.

These fully intelligent controllers, measuring just 0.95" x 1.4", require little or no tuning when used with most motors measuring less than 1.5" in diameter. (Default PID values are robust and are stable with most motors). A single 4 wire bus, containing 2 power wires and two communications wires, links up to 16 such DC motors in a daisy chain (see wiring diagram). Commands can be issued from any serial terminal program (such as HyperTerminal) or from the EZServo Windows application.

The Commands are intuitive and simple. For example, the command A10000 will move the servo motor to Absolute position 10000. This communications protocol is compatible with devices that use the Cavro DT or OEM protocol.

Using our Starter Kits, a first time user is able to make a Brush DC Servo Motor move intelligently in less than half an hour (see wiring diagram).

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Type Voltage
Motor # of
Feedback Built-in Interface
EZSV10 Controller + Driver 12 - 40 1.5 Servo 1 Encoder RS485

* RS232 & USB interface available when used with a RS485 Converter.

  • Single 4 wire bus linking up to 16 stepper/servo motors
  • 2 Amp Peak, 1.5 Amp continuous DC brush motor driver
  • 4-Quadrant operation
  • Operates from 12V-40V
  • RS232, RS485 or USB based communications
  • On-board EEPROM for user program storage
  • Stand alone operation with no connection to a PC
  • Position, Velocity, and Torque modes
  • Industry standard communications protocol
  • Homes to an Opto or Encoder Index with a single command
  • Fully programmable ramps and speeds
  • Quadrature encoder based feedback
  • Switch selectable device address
  • Software selectable max currents
  • 4MHz max encoder frequency
  • Optional PWM or On/Off Output
  • Optional ADC Inputs Halt / Branch On ADC Value

Stepper Motor Controller Addressing


H Command

Home Function

Encoder Feedback