User`s manual

1.0 - Introduction to PMAC
Page - 2
1. 3 - Types of PMAC
1.3.1 - PMAC(1) PC or PMAC(1) VME features
Standard Features
- Motorola DSP 56k Digital Signal Processor
- 4 output digital-to-analog (DAC) converters
- 4 full encoder channels
- 16 General Purpose I/O, OPTO-22 compatible
- Multiplexer port for expanded I/O
- Overtravel limit, home, amplifier fault/enable flags
- Display port for LCD and VFD displays
- Bus and/or RS-422Control
- Stand-Alone Operation
- G-Code Command Processing for CNC
- Linear and Circular Interpolation
- 256 motion programs capacity
- Asynchronous PLC program capability
- Rotating buffer for large programs
- 36-bit position range (+/- 64 billion counts)
- 16-bit DAC Output Resolution
- “S-curve” Acceleration and Deceleration
- Cubic Trajectory Calculations, Splines
- Electronic gearing
- Advanced PID servo motion algorithms
Optional Features
- Up to 16 digital-to-analog (DAC) converters outputs
- Up to 16 full encoder channels
- 8Kx16 Dual-ported RAM
- Flash Memory (no battery)
- 40, 60 or 80 MHz CPU
- Extended (Pole-Placement) Servo Algorithm
- Super-high accuracy clock crystal (<10 ppm)
- Voltage-to-frequency (V/F) converters
- 12-bit resolver-to-digital converter inputs
- Sinusoidal encoder feedback inputs
- Yaskawa absolute encoders inputs
- Analog feedback inputs
- MLDTs feedback inputs
- Parallel binary feedback
- Optically isolated encoder inputs
- RS-232 or RS-422 serial communication converters
- Analog-to-Digital Converted inputs
- On-board Voltage to frequency converter
- Up to a total of 2048 multiplexed I/O points
- Up to 100 meters remote I/O operation
1.3.2 - PMAC PC
Recommended for applications with more than four channel requirements in either a PC based or stand alone environment.
More than four channels could be used for more than four motors operation, dual-feedback axis (two encoder input each) or
commutated motors (two DACs each). For three or four channels applications the PMAC Lite board is suggested instead.
1.3.3 - PMAC Lite
Recommended for applications with three or four channel requirements in either a PC based or stand alone environment.
The term “Lite” stands for the limitation of only one "DSPGATE" Gate-Array IC on board. The number of channels could
always be expanded, from 4 to 12, through the use of an ACC-24P. The PMAC Lite board is also provided in a stand-alone
box, the PMACPack, complete of power supplies and connectors. For one or two channels applications the Mini-PMAC
board is suggested instead.
1.3.4 - PMAC VME
With the same features as the PMAC PC, the PMAC VME is the only option for VME based applications. The PMAC
VME could be ordered with either 4 or 8 axes (Option 1). The Dual-ported RAM option in a PMAC VME is on-board.
1.3.5 - PMAC STD
With the same features as the PMAC PC, the PMAC STD is the only option for STD based applications. The Dual-ported
RAM option is not available for the PMAC STD and it is limited to eight channels, no ACC-24 is available for it.