CCB-26 Bipolar Driver-Controller - ADVANCED MICRO SYSTEMS - #1

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CCB-26 MICROSTEP DRIVER WITH INTELLIGENT CONTROLLER OVERVIEW The CCB-26 is a low cost driver and smart controller board suitable for operating small stepper motors. It utilizes bipolar power drivers with adjustable currents of up to 0.85 amps (1.25 amps with cooling) per phase. This all-in-one package is designed for OEM applications using high volume production linear actuators and rotary steppers. Built in phase step sequences include 1/8, 1/4, 1/2, Full, and Wave drives. The CCB-26 has an instruction set of over 30 commands that include loop on port, count delays, and set/clear ports. In addition to 5 general-purpose ports, jog, limit and home sensor inputs are also available. Other features include auxiliary step pulse and direction inputs to allow motion generation via external pulse sources, with limit switch protection and position counter tracking. Application development is facilitated with AMS’ free software; featuring: • Program Editor • Syntax Checker Loader • Microsoft “C” Source Code • Pull-Down Menus • Dumb Terminal Emulation • Quick Basic Program • Speed, Distance, Accel/Decel Plots For evaluation and medium volume production, a companion “minimother” board simplifies product interface. The dual axis board has an RS-232 interface, expandable for multiple axes. The communication, power and I.O. signal connectors provide for real-world interface. FEATURES • Small in size • 0.85 amp bipolar chopper drive • Microstep to 1/8, 1/4, 1/2, Full step • High torque full step mode • Bi-directional ramping between speeds • User I.O. ports • Speeds to 19k SPS (optional 25k) • Speed alterable “on the fly” • Soft decelerate stop command • Motion output signal • Receive/send commands while moving • Step register of over 16M steps • Enable signal polarity (programmable) • Special “Home” function • Read position counter while moving • Limit and home switch inputs • 2k non-volatile memory • 9.6k / 470k Baud • Programmable trip point • Selectable “Party Line” serial mode • Limit switch polarity (programmable) • 16 way branch (on ports 1-3) TERMINAL INTERFACE By using a simple RS-232 buffer, motion sequences can be programmed from a standard terminal or host PC. Command lines consist of an ASCII character followed by a number. The input line editor provides a userfriendly interface. PARTY LINE MODE “Party Line” communication protocol can be used in applications using a host computer. This protocol greatly reduces communication time and supports between 1 and 60 axes of motion connected in parallel from a single serial port. NON-VOLATILE MEMORY 2k bytes of non-volatile memory is available to store user programs for future execution. Any number of programs may coexist, limited only by the available memory space. Utilizing this feature allows all parameters, such as initial velocity, ramp and step mode to be set as defaults then modified “on the fly” during program execution. TRIP POINT The trip point is a programmable position that allows predefined operations to be triggered when the motor position matches the established trip point position. During motion the position counter is continuously updated and compared to the programmed trip position. RESET Upon hardware reset all parameters (set by commands B,D,E,H,I,K,T,V) most recently saved are downloaded into the working registers of the controller. Both Jog and Go inputs are then active. During reset all outputs are off.