STMC

The STMC uses an intelligent LSI controller which provides all the functions required to drive a stepper motor without intervention from the host computer. In addition, the STMC contains a 2 amp 4-phase driver IC with heatsink, to produce a complete stepper drive module on a single Eurocard. The STMC accepts initialisation data and commands over the STEbus; initialisation data include motor type (3, 4 or 5 phase), starting and maximum pulse rates and number of pulses while accelerating. The STMC can calculate acceleration and deceleration rates, and will accept 8 main commands, including accelerating motion, constant speed motion and position up to 16,777,216 steps, optionally controlled by limit switch inputs, emergency stops and single stepping. In addition to 6 limit and control inputs, there are 8 general purpose TTL inputs and 8 buffered TTL outputs, all on a standard signal-conditioning connector.

Power consumption:

0.5A typical at 5V

Applications:

• Robotics
• X–Y Tables
• General motion control

Features:

• Intelligent controller – 3, 4, 5 phase, full or half step
• On-board 4-phase bipolar driver – 1.8A continous, 3A peak at 45V
• Heavy-duty motor connector
• 24 digital lines on standard SCB connector
• Up to 2400 steps/sec