Delta Tau: Programmable Multi-Axis Controller (MINI-PMAC2)

The Mini-PMAC2 is a member of the PMAC2 family of boards optimized for interface to 1 or 2 sine waves or direct PWM servo drives and for pulse-and-direction stepper drives. It has two channels of servo interface circuitry, but its software is capable of 8 axes of control. It is completely software compatible with the PMAC2-PC and PMAC2-Lite.

The Mini-PMAC2 is a 2/3-size ISA-bus expansion card with a small piggyback board containing the CPU board. While the Mini-PMAC2 is capable of ISA bus communications, with or without the optional on-board dual-ported RAM, it does not need to be inserted into an ISA expansion slot. Communications can be done through the standard on-board RS-232 serial port; standalone operation is possible.

Board Configuration

Base Version | The base version of the Mini PMAC2 provides a 2/3-slot board with:

2 channels axis interface circuitry, each including:

I. 3 output command signal sets, configurable as either:

II. 3-channel differential/single-ended encoder input

III. 9 input flags, 2 output flags

IV. Interface to 2 external serial ADCs, 8 to 18 bits

2 channels supplemental interface circuitry, each including: