Delta Tau PMAC-2ACC8T

Product Name: 8-Channel Analog Output Expansion Controller for PMAC2
Product Overview
PMAC-2ACC8T is the analog-command front-end of the Turbo PMAC2 system. It converts internal position commands into eight independent ±10 V servo signals for analog-input drives.
Category:
Description
Technical Specifications
  • Channels: 8 independent servo axes
  • Output: ±10 V DC, 16-bit resolution (≈305 µV/bit)
  • Update rate: up to 44 kHz per channel
  • Accuracy: ±0.02% of full scale typical
  • Communication: RS-232/485, Ethernet, MACRO fiber ring
  • Supply: 5 V DC from host or external, typical 2.5 W
  • Dimensions: 185 × 112 × 45 mm
  • Weight: 1.2 kg
Functional Features
  • Software configurable zero offset, gain, polarity
  • Common-mode rejection and output filtering
  • Status LEDs for power and axis activity
  • Works with Turbo PMAC2 and Power PMAC migration paths
Application Scenarios
Multi-axis milling, CT gantry synchronization, high-resolution optical stages, research motion rigs.
Working Principle
Host PMAC2 CPU solves trajectory → ACC8T latches command words → 16-bit DAC updates voltage → servo drive follows analog setpoint → encoder feedback returns to CPU.
Installation Requirements
Mount near PMAC CPU. Use shielded twisted-pair analog cable. Ground shield at one end or both ends depending on cabinet scheme. Keep distance to drive under specified cable limit for noise control.
Usage Notes
Perform DAC offset calibration before first run. Never plug or unplug front cables under power. Avoid ground loops between controller and drive.
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