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The Tern Motion-C provides protected inputs (Darlington transistor arrays) to optically isolate home, limit, and fault switches. The solenoid drivers on the MC are capable of sinking up to 350 mA at 50 V. The PPI (82C55) provides an additional 24 user-programmable bi-directional I/O lines. The MC provides two RS-232 and one RS-485 drivers for the host Engine controller. Additional I/Os, ADC, and DAC are optionally available on the Engine boards.

Each axis contains sophisticated trajectory profile and digital servo capabilities, allowing very low position and velocity tracking errors. The 4-axis operation can be programmed either independently or in synchrony to allow advanced multi-axis motion such as circular and continuous-path profiles. The DAC provides electronic gearing, PID/PI control, a choice of velocity profiles, 1/T counter, motor error shutdown and monitoring travel switches.

The MC2520/2540 are 2/4-axis open-loop stepper versions; the quadrature decoders are still available to the user application for gauging motion.

Includes
Motion control DSP chipset
Protected high-voltage inputs
Solenoid drivers
24 I/Os
2 RS232
DAC
Does not include controller.

Additional Information:
1. MotionC Users Manual (pdf)