Delta Tau PMAC2A-ETH Programmable Multi-Axis Controller Ethernet Module

Description

Key Technical Specifications

Product Introduction & Supply Chain Strategy

The Delta Tau PMAC2A-ETH is an advanced, high-performance multi-axis motion controller board designed for high-precision motion systems, CNC machines, semiconductor wafer handlers, and complex robotic cells. Built around a 120 MHz 24-bit Motorola DSP, this card computes complex coordinate transformations, trajectory generation, and digital servo loops for up to 8 axes. The onboard 100Base-T Ethernet port enables rapid host communication, real-time telemetry downloading, and remote PLC programming without relying on legacy ISA or PCI backplane expansion buses.

Maintaining a PMAC2A-ETH as New Surplus is a crucial risk-mitigation strategy for facilities operating legacy precision machinery. Because original PMAC2 architecture boards have transitioned to legacy/EOL status, sourcing reliable replacements directly from the OEM is increasingly difficult. Refurbished motion cards frequently suffer from degraded onboard filter capacitors, flash memory write-cycle wear, or heat-damaged DSP pins—leading to unpredictable position drift and servo runaway conditions. Securing factory-original New Surplus units guarantees clean trace isolation, uncorrupted flash memory, and zero-hour operational life, safeguarding against severe production interruptions.

Installation & Configuration Guide

Stage 1: Pre-Installation (Prep & Safety)

1. Isolate power to the main enclosure cabinet and follow standard Lock-Out/Tag-Out (LOTO) procedures on all 24 VDC and 5 VDC power supplies.
2. Wear a grounded ESD wrist strap before handling the PMAC2A-ETH to protect high-density CMOS DSP chips and SRAM components.
3. Document onboard DIP switch and jumper header configurations (E-point jumpers for memory map, RS-232 baud rate, and Ethernet enable) on the existing card.

Stage 2: Removal

1. Unplug the RJ45 Ethernet cable, serial interface connectors, and breakout cables from the front edge of the board.
2. Label and remove all field terminal block connectors carrying encoder feedback, step/direction, and analog command signals.
3. Remove the chassis retention screws and carefully pull the card out from its mounting rack, avoiding contact with adjacent electrical hardware.

Stage 3: Installation (Clone & Seat)

1. Replicate all jumper settings (E1 through E120) and DIP switch configurations from the old board onto the replacement PMAC2A-ETH.
2. Align the board with the mounting slot or card guide and secure it using the chassis mounting screws.
3. Reattach all encoder, analog drive, digital I/O, and RJ45 network cables securely to their designated headers.

Stage 4: Power-On & Testing

1. Apply logic power (+5 VDC and ±12 VDC) and verify that the onboard power and status LEDs illuminate properly.
2. Establish communication using PEWIN32 PRO or PMAC Executive software over Ethernet by pinging the configured IP address (default factory settings may revert to serial baud rate setup if IP is unassigned).
3. Download the machine configuration backup file (.pmc), issue a soft reset command ($), and test single-axis jog routines at low speed to confirm encoder feedback and amplifier output polarity.

PMAC2A-ETH

PMAC2A-ETH

Firmware/Software Versions & Upgrade Notes

• Software Compatibility: Requires PEWIN32 PRO, PMAC Executive, or Executive PRO software tools for configuration and memory management.
• Firmware Maintenance: Firmware version 1.94x or higher is recommended for full 100Base-T Ethernet stack stability and IP socket retention under heavy bus loads.
• Configuration Download Risk: Never attempt to flash firmware or upload large user programs (.pmc files) over an unstable network connection. Interrupting the flash update cycle will corrupt the onboard bootloader, requiring a low-level hardware recovery.

Frequently Asked Questions (FAQ)

Q: Why choose New Surplus over lower-cost refurbished PMAC2A-ETH boards?

A: Refurbished motion controller cards often carry hidden thermal stress, degraded electrolytic capacitors, or worn flash memory from years of continuous operation. Our New Surplus units have never been deployed in an industrial environment, ensuring factory-level timing precision, clean memory registers, and maximum long-term reliability.

Q: Is this Delta Tau PMAC2A-ETH unit original and unused?

A: Yes. This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All cards remain in original static-shielding packaging and undergo thorough visual and static testing prior to shipment.

Q: How do I recover the Ethernet IP address if it is unknown on a replacement card?

A: If the IP address is unknown, connect to the board via the onboard RS-232 serial port at 38,400 baud. Send the terminal query command I56 (or check variables I51–I54 depending on firmware version) to read and reassign the static IP address.

Q: Can I hot-swap encoder or drive cables while the is powered?

A: No. Disconnecting or reconnecting differential encoder lines or analog command signals on a powered card can induce voltage transients that damage the input transceiver ICs or trigger sudden, uncontrolled motor runaway.

Q: Will I need to re-program the controller after replacing a board?

A: Yes. The replacement board contains factory-default system variables. You must re-download your machine’s specific .pmc configuration script and tuning parameters using PEWIN32 PRO software before operating the machine.

Q: What warranty coverage comes with this New Surplus board?

A: Every New Surplus Delta Tau motion board includes a full 1-year functional replacement warranty along with verified QC inspection documentation.