PLC Maintenance Mitsubishi FX5 CPU / GX Works3 for Paint Shop Automation

**Freelance PLC Programmer Required – Mitsubishi FX5 CPU / GX Works3** We are looking for an **experienced PLC programmer (10–12+ years of hands-on experience)** with strong expertise in **Mitsubishi FX5 series PLCs and GX Works3 programming software**. **Project Background:** We previously supplied a **complete paint shop automation system for a client in South Africa**. One of the spray booths is currently facing an operational issue, and we require an experienced PLC programmer to troubleshoot and rectify the issue remotely. **Issue Description:** The spray booth has two operating cycles: 1. **Spray Cycle** – The fan starts and operates as required. 2. **Cooling Period** – The fan switches OFF as per the sequence. 3. **Bake Cycle** – When the bake cycle starts, the **inlet fan is not starting as expected**. The PLC logic, interlocks, sequence, and associated I/O need to be reviewed to identify the root cause and implement the required correction. **Required Expertise:** * 10–12+ years of PLC programming/troubleshooting experience * Strong hands-on experience with **Mitsubishi FX5 CPU** * Proficiency in **GX Works3** * Experience in troubleshooting existing PLC programs and modifying logic * Good understanding of industrial automation, sequencing, interlocks, timers, fans/blowers, and paint-shop applications * Ability to analyze an existing PLC program and identify the cause of the malfunction * **Remote troubleshooting support** is required * Experience with paint booths, ovens/bake booths, or similar industrial systems will be an advantage We can provide the **existing PLC program, sequence details, I/O information, and relevant documentation** to the selected freelancer. **Scope:** Primarily troubleshooting and correction of the existing PLC logic. If required, further remote support during testing/commissioning may also be needed. Please apply only if you have **demonstrable experience with Mitsubishi FX5 PLC and GX Works3** and are comfortable troubleshooting an existing industrial automation system remotely. Please mention your **relevant experience, years of experience, availability, and hourly/project rate** in your proposal.