USE
The 3-D Stepper Motor Driver (STMD- III) is especially designed to control the operation of three bipolar stepper motors.
The STMD-III can be connected to an Motion Control card, from which it receives the signals that determine the precise behavior of the controlled stepper motors.

TECHNICAL DESCRIPTION

Basic Structure
The Stepper Motor Driver consists of one to three Stepper
Motor Drive Modules. A power supply is ensuring their energy supply while a controlling communication bus is handling the communication between them and an Motion Control card installed in a computer. Each of these modules is based on a conventional robust Printed Circuit
Board (PCB), with one 31-pin and one 15-pin connectors attached on it. On the PCB are placed a number of selected electronic components including five opto-isolators, a number
of resistors, capacitors and diodes, along with powerful transistors.

SPECIFICATIONS
Input voltage:     220V ± 10%, 50/60Hz
Power requirements:     100VA max
Motor current:     2.2 A max
Maximum step frequency:    20 kHz
Control input (direction, step):    5, 12, 24 V, opto-isolated inputs
Half step possibility:    yes
Dimensions:    235.4 x 258 x 133 mm
Weight:    7.5 kg max

LT-P ELECTRONIC CAPABILITIES
LT-P scientists and engineers have 25 years of working experience of Power Supplies and Drivers for laser oriented applications. They have developed and produced several families of Laser Drivers. In developing new models, LT-P is based on past proven technologies. A thorough knowledge of modern circuitry and power electronics coupled with the use of modern semiconductor technologies based on ultra-fast transistor, low power loss electromagnetic components and microprocessor technology, makes it possible to continue designing and producing innovative electronic devices.

INCLUDED COMPONENTS: STMD-1
STMD-1 Module is the heart of STMD-III. Up to three of these modules are included in the STMD-III, each one assigned to drive one stepper motor. For further details about this module, refer to our STMD-1 information.

COOPERATING PARTS: I/O card IOCARD-1
The 3-D Stepper Motor Driver (STMD -Ill) is designed to receive signals, that will determine its behavior, by an I/O card incorporated in an IBM PC Compatible computer. Our company provides such an I/O card.