From the Factory Floor to the Field: Why Factory Acceptance Testing (FAT) Matters More Than Ever

November 3, 2025
Author: Chad Vollman

In today’s fast-evolving industrial landscape, where safety, reliability, and performance are paramount, Factory Acceptance Testing (FAT) is a pivotal milestone in delivering automation and process control systems. At Spartan, we view FAT not merely as a procedural step, but as a strategic safeguard, one that guarantees our customers receive fully functional, safe, and optimized systems long before they ever reach the field.
 

What is a Factory Acceptance Test (FAT)?

A Factory Acceptance Test (FAT) is a thorough, pre-delivery testing process carried out at the vendor’s facility. It verifies that the system, whether a control panel, burner management system (BMS), or motor control center (MCC), meets every design specification, safety requirement, and functional expectation before shipment to the customer site.

FATs typically include:
 
  • Hardware verification
  • Software and logic validation
  • I/O simulation and testing
  • Safety interlock checks
  • System integration testing

How FAT Reduces Risk for Customers and Vendors

For Customers:
  • Early Issue Detection: Identify and resolve issues before installation.
  • Improved Safety: Validate safety-critical systems in a controlled environment.
  • Operational Confidence: Ensure the system performs as expected.
For Vendors:
  • Quality Assurance: Final quality checkpoint before delivery.
  • Reduced Site Work: Minimize troubleshooting in the field.
  • Customer Satisfaction: Demonstrate commitment to excellence.

Spartan Controls’ Comprehensive FAT Approach

We elevate FAT to a new standard by offering a fully integrated, customer-centric testing experience. Our FATs are meticulously designed to simulate real-world operating conditions, ensuring every system we deliver is ready for seamless deployment.

Combustion Systems: BMS Logic, Fuel Train, and Flame Ignition

Combustion systems are inherently high-risk due to the presence of flammable gases and high temperatures. Spartan’s FAT process for combustion includes:
 
  • Burner Management System (BMS) Logic Testing
  • Fuel Train Verification
  • Flame Ignition and Light-Off

DeltaV Control Systems: I/O and Logic Testing

Spartan’s DeltaV FATs are designed to validate both hardware and software performance:
 
  • I/O Testing
  • Logic Validation
  • Operator Interface Review

MCC Solutions and PowerVue: Electrical Reliability and Risk Reduction

Our MCC business, powered by PowerVue, delivers intelligent motor control solutions that integrate effortlessly with automation systems. During FAT, we:
 
  • Test MCC Panels
  • Validate PowerVue Integration
  • Simulate Fault Conditions

FAT as a Strategic Investment

Factory Acceptance Testing is more than just a technical requirement, it is a strategic investment in safety, reliability, and peace of mind. At Spartan Controls, our FAT process is meticulously crafted to deliver maximum value by reducing risk, ensuring compliance, and accelerating time to production.

Whether it’s a combustion system, DeltaV control panel, or PowerVue-enabled MCC, Spartan’s unwavering commitment to thorough, transparent, and customer-focused FATs ensures that every system we deliver is ready to perform, safely and reliably, from day one.
Chad Vollman
Manager, Combustion Management
Chad Vollman
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