User's Manual
Turbo PMAC User Manual
16 Turbo PMAC Family Overview
• Fieldbus interface: DeviceNet and Profibus, master or slave
• Backplanes for 4 to 18 boards plus power supply
• AC-input (85 – 240VAC) and DC-input (24VDC) power supplies
Compact UMAC Turbo
The Compact UMAC Turbo (formerly called UMAC-CPCI Turbo) is a rack-mounted Turbo PMAC
system in which the 3U-format boards are connected across a backplane board that has the physical
format of a Compact PCI (CPCI) bus (110-pin high-density connectors), but is not electrically or software
compatible with the CPCI bus. The field wring comes out of pass-through connectors behind the
backplane. It is the User responsibility to devise a distribution scheme for the field wiring. For this
reason, the Compact UMAC is intended for high-volume users who can afford the investment in an
application-specific distribution scheme.
There is a small family of Compact UMAC boards. This family presently includes:
• Turbo CPU Board with optional USB or Ethernet interface
• Acc-24C2 Digital (PWM/Stepper) 4-Axis Interface Board
• Acc-24C2A Analog 4-Axis Interface Board
• Acc-11C 48/96 Isolated Digital I/O Board
• Acc-51C Sinusoidal Encoder Interpolator Board
• Acc-C8 8-slot backplane board (plus power-supply slot)
QMAC Boxed Design
The QMAC is a boxed 4-channel Turbo PMAC2 with built-in power supply and front-panel connector
board. It is available with pulse-and-direction, analog, or direct-PWM outputs to amplifiers.
QMAC has the following standard features:
• 4 channels basic axis-interface circuitry, each including:
• Quadrature encoder input with index and hall commutation sensor
• Differential pulse-and-direction stepper outputs
• Four isolated input flags (home, /-limit, user)
• Isolated position-compare output flag
• Encoder/stepper interface on DB-15 connector
• Flag interface on removable terminal block
• Two supplemental channels on DB-25 connector, each including:
• Quadrature encoder input
• Pulse output, configurable as PWM or PFM
• General-purpose isolated digital I/O: 8 out, 16 in, on removable terminal blocks
• RS-232 communications port
• Multiplexer-port interface for I/O accessories
• Display port interface
QMAC has the following optional features:
• Four channels single or dual analog amplifier interface
• Four channels direct-PWM amplifier interface
• USB communications interface
• Ethernet communications interface