Description
- Model: UT150-1
- Brand: ALSTOM (Now GE Power / Grid Solutions)
- Series: Alstom Automation / P320 / Alspa Systems
- Core Function: Central processing and logic execution board for industrial control; New Surplus
- Product Type: Main Control Board / Processor Card
- Key Specs: Multi-layered PCB, Integrated high-speed bus interface, Proprietary Alstom firmware support
- Processor Architecture: Specialized industrial RISC processor
- Input Voltage: Typically +5 V DC and ±15 V DC via backplane
- Communication Ports: Serial RS-232/485 and High-speed proprietary Alspa bus
- Operating Temperature: 0°C to +60°C
- Storage Temperature: -40°C to +85°C
- Memory: Integrated EPROM for firmware and SRAM for runtime data
- I/O Capability: Manages up to 256 digital/analog points via local bus
- Diagnostics: On-board LED status indicators for “Run”, “Fault”, and “Comm”
- Form Factor: Standard Eurocard-style plug-in module

ALSTOM UT150-1
Installation & Configuration Guide
Phase 1: Pre-Installation (Est. 15 mins)
⚠️ Critical Warning:
- This module is a “brain” component; ensure you have a verified backup of the application logic (the .BIN or .HEX file) before replacement.
- Power down the entire sub-rack. Never pull or insert the UT150-1 while the rack is energized (non-hot-swappable).
- Use a grounded wrist strap. The vintage ICs on this board are highly susceptible to static discharge.
Phase 2: Removal & Mechanical Prep (Est. 10 mins)
- Tagging: If there are front-facing communication cables (DB9 or similar), label them clearly.
- Extraction: Loosen the top and bottom retaining screws. Use the card pullers to slide the module straight out of the rack.
- Jumper Verification: Look at the old board. There are often several jumper blocks (e.g., J1, J2) used to set the rack address or memory offset. You must replicate these exactly on the new UT150-1.
Phase 3: Insertion & Boot-up (Est. 20 mins)
- Seating: Align the card with the rack guides. Push firmly until you feel the backplane connectors fully engage.
- Power On: Restore power. Watch the LED sequence.
- Normal: The “Run” LED should blink during self-test and then remain steady.
- Error: If the “Fault” LED stays Red, it usually indicates a checksum error or a mismatch in the jumper-defined address.
- Program Loading: Connect your engineering workstation to the serial port to reload the project configuration if the memory was not pre-flashed.
Customer Cases & Industry Applications
Case 1: Combined Cycle Power Plant Restoration A gas turbine plant in Eastern Europe faced a “Processor Watchdog Fault” on an aging Alspa control system. The UT150-1 was identified as the culprit. Since Alstom has transitioned these lines to GE, new boards carry astronomical lead times. We supplied a New Surplus unit from our stock. The plant avoided a prolonged outage during peak winter demand. To be honest, finding these “legacy” boards in New Surplus condition is becoming harder every year.
Case 2: Steel Mill Cooling System Maintenance A steel mill in Southeast Asia used the UT150-1 to manage its water-cooling logic. A power surge damaged the original board’s communication chips. Instead of a $100k system migration, the client opted for a direct swap using our module. The swap took 30 minutes, and the system was back online. This is the perfect example of how strategic spare parts management saves hundreds of thousands in unnecessary “upgrades.”
Frequently Asked Questions (FAQ)
Q: Is the UT150-1 the same as the UT150-2? A: No. While they belong to the same family, the “-2” version usually features updated memory capacity or a different clock speed. While sometimes “downward compatible,” it is always safest to match the exact suffix to avoid timing issues in the control loop.
Q: Does this board come with the firmware installed? A: Our units are New Surplus hardware. They contain the factory bootloader, but they do not contain your specific plant’s application logic. You will need to “Download” your program to the board after installation.
Q: Why is the price for this obsolete card higher than some newer PLCs? A: It’s a matter of Supply vs. Criticality. The cost of replacing the UT150-1 is far lower than the cost of a total system overhaul (which involves engineering, new wiring, and weeks of downtime). We source these globally to ensure you have a “Plug-and-Play” solution.
Current Inventory Highlights
Beside the UT150-1, we stock these high-demand Alstom and GE parts:
- ALSTOM www.newplcdcs.com 8035-LIB-800 (Processor)
- ALSTOM MV150 (Digital Input Module)
- GE Fanuc IC697CPX935 (90-70 CPU)
- Bently Nevada www.newplcdcs.com 3500/33 (Relay Module)
- Honeywell CC-PCNT01 (Control Processor)
- ABB PM861A (AC800M Controller)
- Siemens 6DD1606-0AD1 (Simadyn D)
- Schneider Modicon AS-P890-000 (Processor)
