EZPZ23-HR1 Piezo Motor Servo
Controller + Driver
The EZ Piezo Servo from
AllMotion is designed
to allow the rapid
implementation of position
control using the Nanomotion
HR1-1-S3 or similar motor.
The fully intelligent controllers,
measure just 2. 25 “ x 2. 25“. The Nanomotion HR1 motor,
nine pin DSUB connector plugs directly into the controller.
A single four wire bus, containing two power wires and
two communications wires, links up to 16 such piezo
motor controllers in a daisy chain. Commands can be
issued from any serial terminal program (such as
HyperTerminal) or from the EZ Servo/Stepper Windows
The commands are intuitive and simple. For example,
the command A10000 will move the servo motor to the
absolute position 10000. (This communications protocol
is compatible with devices that use the Cavro DT or
The EZ Servo is also capable of stand-alone operation
with no connection to a PC. It can be set to execute a
preset string of commands upon power-up (i.e., only
power is required in this mode). The commands include
nested loops and execution halt pending a switch closure,
which is useful in stand-alone applications.
Using AllMotion Starter Kits, a first-time user is able to
make the HR1 piezo motor servo in less than half an hour.
• Single four wire bus linking up to 16 stepper/servo
• HR1 motor plugs directly into the driver controller.
• 12V 2A supply voltage.
• RS-232, RS-485, or USB based communications.
• Four quadrant operation.
• On-board EEPROM for user program storage.
• Stand-alone operation with no connection to a PC.
• Execution Halt/Branch pending switch closure.
• Pre-wired for OptoSwitch inputs.
• Position velocity and torque modes.
• Industry standard communications protocol.
• Homes to an opto or encoder index with a single command.
22 SERVO 01.2008
• Fully programmable ramps and speeds.
• Quadrature encoder based feedback for position mode.
• Velocity mode possible with only Hall sensors for
• Switch selectable device address.
• Software selectable max currents.
• 4 MHz max encoder frequency.
• Two one amp on/off drivers included.
• Optional step and direction mode; 4 MHz step frequency.
• Four ADC inputs; Halt/Branch on ADC value.
For further information, please contact:
510•471•4000 Fax: 510•471•4003
TReX Jr Dual-Motor
its new TReX Jr
Dual-Motor Controller, a
versatile DC motor controller
suited for mixed autonomous and
radio control of small- and medium-sized robots. Three independent interfaces are offered:
radio control (RC) servo pulse interface, analog voltage,
and asynchronous serial. The serial interface can switch
instantly with one of the other two interfaces, allowing
mixed autonomous and remote control. For example, a
robot could be configured to run autonomously most of
the time, but a human operator could override the
autonomous function if the robot gets stuck or into a
dangerous situation. If the serial mode is selected as the
primary interface, high-resolution measurements of all five
RC inputs are made available to the autonomous robot
controller, allowing for complex and unlimited mixing of
operator control and sensor input.
The TReX Jr motor controller operates from 5 to 24 V,
and the two primary outputs provide bi-directional control
with peak currents of 5 A and continuous currents of 2. 5
A while a unidirectional auxiliary output delivers over 10 A
(continuous). A fourth control channel for invertible robots
allows improved control if the robot does get turned
upside-down, and the fifth control channel determines
which interface controls the motors. The unit measures
approximately 1.75” x 1.75” x 0.5”, and it is available fully
assembled or in kit form.