MC1131A Datasheet | PMD

Features Supports 3-phase as well as 2-phase brushless motors Performs trajectory generation, servo loop closure, and mutation Ultra-smooth sinusoidal mutation Open or closed loop operation Software and feature -patible with other 1st generation PMD chipsets Available in 1 or 2 axis configurations 32-bit position, velocity, acceleration and jerk trajectory profile registers Choice of S-curve, trapezoidal, or contoured velocity profile modes Electronic Gearing Two travel-limit switches per axis Choice of PWM or DAC motor output signals Easy-to-use packet-oriented mand protocol mutation Waveforms 3-Phase Brushless Phase A Phase B Phase C MC1231A MC1131A General Description The MC1231A is a dedicated motion processor which functions as a plete chip-based motor controller. Packaged in a 2-IC chipset, this device performs trajectory generation, servo loop closure, and sinusoidal mutation. The chipset inputs incremental encoder signals and outputs PWM or DAC-patible motor mand signals. The MC1231A is available in a one, or a two-axis configuration. The MC1231A is functionally similar to other members of PMD's 1st generation chipset family however it adds the ability to perform sinusoidal mutation of brushless motors. All of these devices provide sophisticated motion control capabilities allowing the creation of plex profile sequences with very low tracking errors. Both two and three-phase brushless motors are supported by the MC1231A. When used with two-phase brushless motors each phase is separated by 90 degrees. When used with 3-phase brushless motors each phase is separated by 120 degress. The mutation angle is continuously calculated using the encoder position. User-programmable mutation parameters allow a very wide range of encoders and motors to be controlled. The chipset is controlled by a host processor which interfaces with the chipset via an 8-bit, bi-directional port. munications to/from the chipset consist of packet-oriented messages. The chipset is packaged...