Experience
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Daniel Cemino brings 12 years of experience across manufacturing, food processing, agricultural and live production environments to fault finding — working out why a fault is actually happening, and understanding how the system is supposed to operate, rather than replacing components until the symptom goes away. This page covers diagnosis. Building or wiring new electrical infrastructure is covered on Industrial Electrical, programming the PLCs, HMIs and drives inside a control system is covered on Automation Systems, and getting a stopped production line running again is covered on Breakdown Support.
Faults that come and go — a machine that trips occasionally, a signal that drops out under load, a fault that won't reproduce on demand — are worked through by testing under the conditions that trigger them and tracing the circuit or logic involved, rather than a single visual check.
Faults inside the control system itself — the PLC logic, HMI displays, drives or the wiring connecting them — are traced back through the system to understand what's actually happening, rather than assumed from the symptom alone.
Where a site can't fully stop, diagnostic work is planned around what can be safely isolated, so testing can proceed while the rest of the line keeps running.
Understand the equipment, its history and the fault symptoms before diagnostic work begins.
Plan the diagnostic approach — what needs to be tested, isolated or ruled out.
Carry out the diagnostic testing to identify the actual cause of the fault.
Walk through what was found, why it happened, and what's needed to resolve it.
