ST400NT - Series

Multi-Axis Stepper Motor Control Board

up to 16 Axes "ONE SERIAL PORT"

Technical Specifications

NETWORK CAPABILITIES

Up to four ST400NT boards can be networked in a single system with 16 stations (four controllers per board). This network can include a maximum of 104 TTL I/O lines, 16 SPI interfaces, and 44 analog input channels

A single RS232 (serial) port on a PC or host controller can control the system. The RS232 link can be extended as far as 300 feet and each ST400NT board can act as a repeater for the RS232 signal. Individual addressing of each controller is provided through on-board switches for fast network expansion or swapping of individual boards.

The host can address a message to any number of stations in the network. This allows easy synchronization for complex motion control over the entire network.

Serial interface

High speed serial port interface from 9600 to 115200 baud.

Stepper control

Step speeds from 16 steps/sec to 8,500 steps/sec. Linear acceleration and deceleration capability. Full (biphasic and monophasic) and half step modes. Incremental encoder input for closed loop control. Current mode driver (chopper) up to 2 Amps/ 48 V

Analog channels

11 analog channels for readings with a range of 0 to 2.5 VDC. 10 KOhm impedance.

Digital I/O Lines

26 digital I/O lines, TTL compatible, can sink/source up to 10 mA each. Two SPI interfaces (3 wires each).

A/D Converter

Analog to digital converter with input multiplexer and 10 or 12 bit resolution.

Connectors

Cage clamp terminal blocks provided for power and stepper motor connections. Two RJ45 connectors for serial interface. IDC connector for user I/O and male locking headers (.1") for analog inputs.

Power Requirements

7-24 VDC for logic. 5 - 48 VDC for motors.

Physical Characteristics

Dimensions (approximate): 19.7 X 12.7 X 2.5cm (7.75" X 5.00" X 1.00")

Weight (approximate): 300 grams (10.5 oz).
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    ST400NT -  Block Diagram

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RMV Electronics offers custom engineering services such as hardware or PC software development for our existing products

#300 - 3665 Kingsway, Vancouver, BC, V5M 5W2, Canada
Phone:  604-299-5173  Fax:  604-299-5174
e-mail: technical support or sales