EETS approached the problem methodically under significant time pressure. The first step was to rule out equipment issues by verifying that the generator protection relay was correctly configured. It was. With the hardware confirmed as properly set up, attention shifted to the PLC program itself.

EETS performed a complete review of the control code, working through it systematically against the equipment supplier’s submittals to identify every instance where the permissive logic did not correctly reflect the behavior of a generator-driven system. Once all offending permissive blocks were identified, the system integrator modified the program to correct the logic, reversing the inverted conditions to properly govern startup and shutdown for a turbine-generator configuration.

With the core logic corrected and the generators starting and running reliably, EETS then spent additional time on site dialing in setpoints and tuning sequencing parameters to produce a clean, consistent startup and stop cycle. The difference between a corrected system and a well-tuned system matters in long-term operations: a rough startup sequence puts mechanical stress on the equipment over time and can produce nuisance trips that erode operator confidence in the system. The additional tuning work ensured the facility was not just functional but operationally sound.

The entire diagnosis and resolution was completed within days of EETS arriving on site.