PACIFIC SCIENTIFIC PC834-001-T

Product Introduction:
The PC834-001-T is a digital brushless servo drive with built-in indexing capability, designed to control 3-phase permanent magnet (PM) brushless servo motors. It combines a high-bandwidth DSP-based control loop with programmable motion indexer functions, supporting both analog torque/speed command and step/direction or index positioning modes.
Category:
Description
Technical Specifications:
  • Input Power:​ 115/230 VAC single-phase or 240 VAC (model dependent); some versions accept 24–48 VDC low-voltage supply
  • Continuous Current:​ Up to ~7.1 A RMS (model-dependent)
  • Peak Current:​ Up to ~21.2 A RMS (short duration)
  • Control Modes:​ Torque (±10 V analog), Velocity (±10 V analog or encoder-follower), Position (indexer with preset positions or step/dir)
  • Position Resolution:​ 24-bit encoder interface (resolver or incremental encoder supported via DRDC — Digital Resolver-to-Digital Converter)
  • Loop Bandwidth:​ Up to 400 Hz velocity loop
  • Communication:​ RS-232/485 for drive commissioning & parameter upload; ±10 V analog I/O; 8 × digital inputs (24 VDC — limit, enable, home, mode select); 4 × digital outputs (ready, fault, in-position)
  • Protection:​ Over-current, over-voltage, under-voltage, over-temperature, motor stall detection
  • Operating Temp:​ 0 °C to +55 °C (standard), optional wide-temp variant
  • Mounting:​ 35 mm DIN rail or panel mount; IP20 (cabinet installation)
  • Dimensions:​ Approx. 140 mm (W) × 180 mm (H) × 60 mm (D)
Features:
  • Auto-tuning and manual gain adjustment for stable motion across load inertia variations
  • Onboard indexer stores multiple position presets — operates standalone without a host controller
  • Supports resolver feedback natively (high-noise immunity in harsh environments)
  • CE, UL, cUL, and RoHS compliant
Applications:​ Packaging machines, labeling systems, CNC auxiliary axes, semiconductor wafer handlers, textile machinery.
Installation Notes:​ Match drive continuous current rating to motor rated current. Perform inertia identification and auto-tune after mechanical coupling. Ensure proper earth grounding and separation of power and signal cabling to minimize EMI.
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