SAX-232 / DAX-422 Full - Half Step Standalone Systems - ADVANCED MICRO SYSTEMS - #1

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SERIAL INTERFACE Each module features full duplex serial communications. An RS-422 Party Line interface uses a differential transmission and receiver pair to ensure reliable communication in industrial environments. This protocol permits simultaneous communication (to 32 axes) with minimum command processing latency. PROGRAMMABLE CURRENT Each axis has a programmable current feature that controls motor winding current to within 1% resolution. Independent settings for "RUN" and "HOLD" currents permit full motor torque when stepping. Automatic power down to the hold current value minimizes motor power dissipation when the system is not operating. PROGRAMS Using a host computer or dumb terminal, programs (up to 2K bytes per axis) can be stored in non-volatile memory. For standalone use there is a "GO" switch input. Additional input ports can test and branch to multiple motion sub-routines. Two programmable outputs are available to drive solid state relays and other devices. A separate "TRIP" function provides automatic program branching when a specified motion is passed. Additional control inputs include soft stop, dual speed jog and step by step monitoring of travel limits to protect expensive hardware. ASCII BAUD RATES The baud rate for communication is factory set at 9600 BPS. Other options include; 300, 1200, 2400, 4800, 19.2k and 38.4k BPS. OVERVIEW Models SAX (Single Axis) and DAX (Dual Axis) are full function stepper motor control systems. These units are designed for a wide variety of industrial applications that require precise, reliable and cost effective motion control. The SAX/ DAX are based on the integration of AMS's high performance step and direction controllers, 2.5 amp per phase programmable current chopper drivers and integral 40 volt power supply. Communication is through the use of high level commands issued via RS-232 or RS- 422 protocol. Built-in intelligence and memory (2K bytes per axis) make it simple to execute programs from a host computer, dumb terminal or stand-alone configuration. The small chassis size with finned heat sink, built-in fan and convenient A.C. power entry module simplifies design integration. Extensive signal buffering, optical isolation and a differential serial communications interface provide optimal reliability in industrial environments. BLOCK DIAGRAM PERFORMANCE FEATURES • Low cost, small size • Serial communication up 32 axis • Assignable serial address • Speeds up to 23,000 SPS • Full/half step mode sequence • Speeds alterable "on the fly" • Programmable accel/decel ramps • Programmable run/hold current • Five buffered user ports • 2K bytes of non-volatile memory • Optically isolated home/limits • Single step attribute • Read position while moving • Self-contained home routine • Dual speed jog inputs • Go and soft stop inputs • Programmable trip point SAX / DAX SINGLE and DUAL AXIS STEP MOTOR CONTROL SYSTEMS MOTOR AUXILIARY I/O SER IAL OUTPUT AC INPUT CONTROL INPUT