SECA Contracting

SECA Contracting Specialists in High Voltage Mobile Maintenance & Autonomous Mining Systems

The fastest way to confirm PLC, CAN network and through to HMI? I normally use this 772 process meter to simulate a 4-...
04/08/2026

The fastest way to confirm PLC, CAN network and through to HMI?

I normally use this 772 process meter to simulate a 4-20mA signal on digital sensors.

In this instance I simulated brake pressures which confirms PLC nodes, the CAN network integrity, Main PLC and all associated wiring in between is in tact and functioning correctly on this Liebherr T264.

By then leaving a mA signal on and going through stressing harnesses back to source you can see if there are rub throughs or faulty connectors which alarm on screen that may only appear when the truck is moving.

Any breakdown HV truck sparky will tell you the truck can be faulting when driving around and when you get there it has magically cleared itself. Leaving you to try and recreate it.

Got a more efficient way to do it? Let me know!

PLC

Rebuilds are now fully underway.Every successful overhaul starts with data. We begin by analysing onboard GE drive syste...
21/04/2026

Rebuilds are now fully underway.

Every successful overhaul starts with data. We begin by analysing onboard GE drive system data to identify faults early, enabling a targeted and efficient rebuild process. From there, our team conducts detailed inspections and comprehensive electrical testing across all components to ensure reliability at every stage.

Our commitment is clear: extend the operational life and performance of MT4400 Unit Rigs through precision, expertise, and disciplined ex*****on.

This International Women’s Day we are extremely proud to celebrate the achievements and continued determination shown by...
09/03/2026

This International Women’s Day we are extremely proud to celebrate the achievements and continued determination shown by the women of SECA Contracting.

Day in day out they show up, work hard and provide expertise in many different fields making our business stronger.

Happy IWD2026!

Getting it done the safe way 🙌 We mobilised this truck on one wheel motor and relocated to a safer location for repairs....
26/02/2026

Getting it done the safe way 🙌
We mobilised this truck on one wheel motor and relocated to a safer location for repairs.
No shortcuts - safety is always the priority at SECA.

SEC004 hot off the press. Big thanks to for the excellent work as usual!
16/02/2026

SEC004 hot off the press. Big thanks to for the excellent work as usual!

Merry Christmas from the SECA team 🎄🎅 Thinking of the ones who are sacrificing family time today to keep the wheels turn...
24/12/2025

Merry Christmas from the SECA team 🎄🎅 Thinking of the ones who are sacrificing family time today to keep the wheels turning.

2025 was a great year, we can’t wait to see what 2026 brings! ⚡️

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Perth, WA

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