MAX-410 / MAX-420 Microstepping Single and Dual Axis Standalone Systems - ADVANCED MICRO SYSTEMS - #1

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OVERVIEW The MAX-410 (single axis) and MAX- 420 (dual axis) are full function microstep positioning systems with integral driver (4 amps) and power supply (40Vdc). Standard features include 2k bytes of non-volatile memory for program storage, extended user I/O facilities, programmable motor current and independent acceleration/deceleration ramping. Programming is through high-speed RS- 422 serial interface with simple mnemonic commands for plug-and-play operation. Optional encoder circuitry provides stall detection and position feedback for closed-loop operation. The MAX systems incorporate AMS’ proprietary “Variable Resolution Microstep Control” (VRMC®) indexing technology for accurate and repeatable positioning at any shaft speed. Step resolution ranges from 400 to over 50,000 steps per revolution. Short circuit, over temperature and under voltage protection, combined with special “Watchdog” software, ensure trouble-free operation in any environment. For export, CE certified models are also available. MAX-410 MAX-420 FEATURES • Integral controller/driver/power supply • Rugged, compact design • Low cost • Short circuit/over temp. protected • Output current of 4 amps @ 40Vdc • 1/256 motor step resolution • Fixed or variable step resolution • Programmable run/hold current • RS-422 “Party Line” operation • Programmable accel/decel ramps • Six buffered user I.O. ports • 2k bytes of non-volatile memory • Optically isolated home/limits • Self-contained home routine • Dual speed jog inputs • Go and soft stop inputs • Programmable trip point • Encoder feedback option • Watchdog S/W for extra reliability SERIAL INTERFACE The MAX systems feature full duplex serial communications. A “Party Line” interface implements a differential transmission and receiver pair that provides reliable communication in industrial environments. This protocol permits simultaneous communication (up to 32 axis) with minimum command processing latency. PROGRAMMABLE CURRENT The MAX 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 in an idle mode of operation. PROGRAMMING Programs can be stored in non-volatile memory by using a host computer or dumb terminal. For stand-alone use there is a “GO” switch input. Additional input ports can test and branch to multiple motion subroutines. 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. ENCODER FEEDBACK All MAX systems are easily upgraded to include encoder feedback for “closed loop” applications that require positional feedback data and stall detection. A built-in “line count” multiplier extends normal encoder resolution by a factor of four, providing greater accuracy at less cost. SINGLE AND DUAL AXIS MICROSTEP POSITIONING SYSTEMS AND AC “VRMC” DRIVER MOTOR CONTROLLER INTERFACE POWER SUPPLY ENCODER FEEDBACK