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**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.
Project ID: 40695512
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20 freelancers are bidding on average ₹25,275 INR for this job

With over a decade in the field, I am an accomplished and versatile PLC programmer, well-versed in Mitsubishi FX5 series and GX Works3 software. My problem-solving ability is second to none, and I shine brightest when it comes to troubleshooting existing PLC programs and modifying logic to resolve operational issues. Notably, my past experience includes the successful installation of paint-shop automation systems similar to your project. Hence, I have a solid understanding of industrial processes and paint-shop applications. These skills combined with my proficiency in analyzing the existing PLC programs make me the ideal candidate to assess the root cause behind your spray booth's issue. Precision, agility, and resourcefulness are my hallmarks when working on remote projects. Therefore, you won't just be getting top-notch skills for your Mitsubishi FX5 CPU; you will also have an experienced professional who understands the value of maintaining thorough documentation of troubleshooting processes too. I'm available immediately for this job and can provide a reasonable hourly rate for my services. Let's get that spray booth back up and running!
₹25,000 INR in 7 days
6.5
6.5

HI, KINDLY READ THROUGH MY PROPOSAL I will remotely troubleshoot your Mitsubishi FX5 spray-booth sequence in GX Works3 and correct the bake-cycle logic so the inlet fan starts as specified. MY APPROACH ✅ Review the existing FX5 program, I/O map, interlocks and timers for Spray → Cool → Bake ✅ Trace why the inlet fan runs in Spray but not in Bake (permissive, mode bit, timer, output map or interlock) ✅ Apply a minimal, documented logic fix ✅ Support remote test/commissioning until the bake cycle is verified Relevant experience : Hands-on Mitsubishi FX5 / GX Works3 sequencing, fan/blower interlocks, timers and paint-shop / oven-style cycles. Comfortable working from an existing program without rewriting the line. Availability : Ready to start as soon as the project file and sequence/I/O docs are shared. Hourly or fixed-price for the fault-find + fix, with optional follow-on remote support. QUESTIONS 1 FX5 CPU model and GX Works3 version? 2 Can you share the current project file plus the bake-cycle sequence and inlet-fan I/O address? 3 Any HMI/SCADA or VFD interlock in the bake start path? Ready to start immediately.
₹35,000 INR in 4 days
6.5
6.5

Hello, sir, I am a PLC programmer with 11 years of experience in the field i have good experience with Mitsubishi PLCs and with GX Works 2 and GX Works 3 Please contact me for more details i hope we can work together besst regredes
₹37,000 INR in 7 days
5.1
5.1

With over a **decade of experience in industrial automation**, I, Dervis, am your ideal choice for this PLC maintenance project involving the **Mitsubishi FX5 CPU and GX Works3** software. I've been handling a wide range of sophisticated automated systems, from water treatment plants to factory production lines, and have utilized various PLC platforms like Siemens TIA Portal, ABB PLC and more. Drawing on this extensive experience, I can navigate through complex sequences, interlocks, timers and other important elements essential for paint-shop applications without breaking a sweat. My understanding in the field of industrial automation is not just theoretical or skill-based but strongly emphasizes analytical troubleshooting. This aligns perfectly with what you need. I have an unfailing knack for assessing existing PLC programs, identifying root causes swiftly even in remote service situations, providing effective remedies and minimizing downtime as much as possible. My commitment to quality is absolutely non-negotiable and that extends to my work ethic as well; I'm available at any mutual time convenience without compromising my deliverables' standards. In addition to these skills, I bring a thoroughly versatile approach to my work which can be attributed to my hands-on projects with ventilation systems using systems like ABB AC500 while at the same time leveraging Honeywell DCS C200 in iron
₹25,000 INR in 7 days
5.4
5.4

Having worked as a freelance 3D artist, graphic designer, and web designer since October 2020, I may bring a fresh perspective to the table as the job will require some innovative thinking for this problem-solving task. However, do not be fooled by my relatively short time in the field as I have vast experience spanning over a decade. I have had 10–12+ years of experience in engineering work | Graphic Design| Photo Editing | designing logos alongside an all-encompassing understanding of Graphics |3D modeling among others. One of my greatest strengths is my ability to adapt effectively to new software or systems and learn them quickly. I am highly proficient in Mitsubishi FX5 CPU/GX Works3, software critical to this particular project requirements. I constantly keep myself updated about system changes & best practices to maintain an outstanding execution.
₹14,500 INR in 1 day
3.9
3.9

The inlet fan not starting during the bake cycle often points to a latch condition in the interlock logic. I’d start by pulling the ladder program from the Mitsubishi FX5 CPU into GX Works3 and tracing the fan coil through the sequence timers. Then I’ll adjust the rung that clears the fan start flag after the cooling period to guarantee the bake start sees a fresh command. A common mistake is leaving a timer’s done flag active when the next cycle begins, which locks the fan off. You’ll see the inlet fan fire reliably once the stale flag is cleared and the start pulse is reissued.
₹25,000 INR in 7 days
2.3
2.3

Hi, New on Freelancer — 20 years of development experience behind us. We're taking our first few projects here at a fraction of our normal rate purely to build our review history. You get senior agency work at junior pricing; we get a review. Straight trade. considering the Mitsubishi FX5 CPU, a common issue could be the handling of real-time data processing in your paint shop automation. Ensuring the synchronization of multiple PLCs might require a review of the network configuration and data flow. Can you provide access to the current GX Works3 project files to start diagnosing?
₹25,000 INR in 7 days
0.0
0.0

I am an experienced PLC programmer and commissioning engineer (over 30 years) and have experience with Mitsubishi PLC systems and ladder logic. I can review the logic and remote support if required.
₹35,000 INR in 7 days
0.0
0.0

I understand the urgency of your project and the need for a skilled PLC programmer to resolve the issues with the spray booth. With over 12 years of hands-on experience in PLC programming, particularly with Mitsubishi FX5 CPUs and GX Works3, I am well-equipped to troubleshoot and rectify the operational challenges you’re facing. I have a strong background in industrial automation, including interlocks and sequencing specific to paint shop applications. I can analyze the existing PLC program and identify the root cause of the malfunction, especially regarding the inlet fan in the bake cycle. I am available for remote support and ready to dive into the existing documentation. My hourly rate is competitive, and I am eager to help get your paint shop back on track. Let’s discuss how I can assist you further.
₹12,500 INR in 7 days
0.0
0.0

Hello, I am an experienced PLC programmer with extensive hands-on experience in industrial automation, including Mitsubishi PLCs and troubleshooting existing control systems. I have worked with Mitsubishi PLC platforms, sequencing, interlocks, timers, motor/fan control, and industrial field wiring, and I am comfortable analyzing existing programs to identify the actual root cause rather than simply modifying the logic. For your spray booth issue, I can review the FX5 CPU program in GX Works3, trace the bake-cycle sequence, and check the relevant interlocks, timers, permissive conditions, outputs, and associated I/O to determine why the inlet fan is not starting. I can also compare the actual machine sequence with the PLC logic and identify whether the problem is caused by software logic, an interlock condition, an input signal, or an output/device-related issue. I am available for remote troubleshooting and can support testing and commissioning after the correction is implemented. I can work systematically and provide clear explanations of the identified root cause and the changes made to the PLC program. I am available to start immediately. My rate is negotiable depending on the scope, and I am also open to a fixed project price if the required work can be clearly defined. I would be glad to review the existing GX Works3 project, sequence description, and I/O information and begin the troubleshooting.
₹30,000 INR in 7 days
0.0
0.0

Can resolve it quickly. Please send me further details and I can begin the work. I have worked on similar problems earlier also. Kindly, send me present program details.
₹13,500 INR in 3 days
0.0
0.0

Over 14 years of industrial electrical and control systems engineering experience across power generation, substations, and smart water infrastructure (including senior roles at Siemens and Xylem). Proven background moving projects from conceptual design to construction-ready detailed engineering packages compliant with IEC and NEC standards. Expert in developing single-line diagrams, sizing calculations, control panel layouts, and complete PLC I/O wiring documentation
₹45,000 INR in 10 days
0.0
0.0

I have 10 years of experience in Industrial Automation with hands on experience of PLC Programming, HMI Development, VFD commissioning, Motion Control programming & LabVIEW for IPC based Systems. I have already worked with many projects on Mitsubishi Platform for process automation & SPMs.
₹21,000 INR in 7 days
0.0
0.0

I have experience in troubleshooting the plc code and make changes where necessarily. I have experience in industrial automation for over 23 years. I can send my cv. Thanks Marius.
₹25,000 INR in 7 days
0.0
0.0

am pleased to submit my proposal for the position of Graphic Designer & Visual Brand Specialist. As a highly creative and detail-oriented design professional, I specialize in crafting visually compelling brand experiences that elevate market presence, strengthen brand identity, and drive meaningful audience engagement. With a refined understanding of contemporary design principles, visual communication strategies, and brand development, I transform concepts into sophisticated, impactful designs that align seamlessly with organizational objectives and customer expectations. Professional Value Proposition What distinguishes my work is the ability to merge artistic excellence with strategic brand positioning. Every design decision is guided by purpose, ensuring that visual assets not only captivate audiences but also contribute to measurable business outcomes. I pride myself on delivering: Exceptional attention to detail and design precision. Innovative and trend-conscious creative solutions. Strong project management and timely delivery. Effective communication and collaborative professionalism. Results-driven designs tailored to target demographics.
₹25,000 INR in 14 days
0.0
0.0

Having worked as an Automation Engineer for over 10 years, I have garnered the substantial expertise required to fulfill the objectives of this project. My intimate knowledge of PLC programming and system integration, coupled with a strong command of industrial communication protocols including Modbus TCP/RTU, indigenous knowledge in Mitsubishi FX5 CPUs and GX Works3, place me in a unique position to remedy the existing challenges in your paint shop automation system. With industrial automation at the core of my profession, I have accrued valuable experience troubleshooting existing PLC programs and modifying logic, which precisely targets what is needed in this project. Despite working remotely, I assure you that my insightful perception of site conditions will not falter as I conduct extensive analysis on your PLC program and implement appropriate interventions to rectify the malfunction. In addition, having seamlessly integrated PLCs with Python, Node-RED and cloud-based systems for real-time monitoring and control further proves my technical competence and prowess. Lastly, I value practicality and cost-efficient solutions which translate to maximum satisfaction for my clients. My goal is to not only assist in automating processes but also reducing manual effort whilst improving system performance - all elements you're seeking for this task. So let's work together to get your paint shop back to its optimal functionality!
₹15,000 INR in 7 days
0.0
0.0

We are having 27+ years of experience in industrial automation, special purpose machines, SCADA and OT-IT interfacing. We specialize in Siemens and Mitsubishi controllers.
₹28,000 INR in 3 days
0.0
0.0

Hello, I am an Automation/PLC programmer with hands-on experience in PLC programming, troubleshooting, sequencing, interlocks, timers, I/O handling and industrial automation. Although I do not have the 10–12 years of experience mentioned in your requirement, I have practical experience working with PLC-based automation systems and am confident in analyzing and troubleshooting PLC logic. I can review the Mitsubishi FX5 PLC program in GX Works3, understand the spray-booth sequence, and investigate why the inlet fan is not starting during the bake cycle. I can check the relevant inputs/outputs, interlocks, timers, sequence conditions and output logic to identify the root cause. I am willing to work closely with your team remotely, understand the existing program and documentation, and implement the required correction carefully. I would also be happy to discuss the PLC program and troubleshoot the issue step by step. I understand that your requirement is for an experienced Mitsubishi FX5/GX Works3 programmer, and I would appreciate the opportunity to demonstrate my practical skills on this project. Regards, Akash
₹22,000 INR in 5 days
0.0
0.0

Hi, I have extensive hands-on experience programming and troubleshooting Mitsubishi FX5 CPUs in GX Works3 for industrial HVAC, paint booths, and burner/cure oven sequencing. Root Cause Diagnosis Approach: 1. Logic & Step Sequencing: Trace the state transitions from Cooling to Bake Mode. In paint booths, the bake inlet fan typically relies on a series of permissive conditions that often block the start rung: - Damper end-switch feedback (e.g. recirculation / fresh-air damper position confirmation). - Pre-purge differential pressure airflow switches or burner interlocks. - Timer reset conditions between the cooling delay and bake cycle transition. - Override / interlock flags retained from the cooling phase. 2. Cross-Reference & Monitoring: Review the GX Works3 project structure (Labels, Global Devices, FB/FC logic), cross-reference the inlet fan coil and its control bits, and set up a watch table for live remote monitoring. 3. Fix & Verification: Correct the permissive logic/timers, test with forced I/O simulation, and provide live remote support during the physical cycle test on-site. I am ready to receive your .gxw/.gx3 project file and documentation to pinpoint the blockage immediately.
₹22,000 INR in 7 days
0.0
0.0

Pune, India
Member since Sep 7, 2026
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$10-30 USD
$30-250 USD / hour
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₹12500-37500 INR
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₹600-1500 INR
$10-30 USD
₹12500-37500 INR
₹100-400 INR / hour
$15-25 USD / hour
$30-250 USD
₹600-1500 INR
$15-25 USD / hour
$30-250 USD
₹12500-37500 INR
min $50 USD / hour
₹12500-37500 INR
€30-250 EUR