Shawn Pinnock

Electrical Engineer with a Master's degree in Electrical Engineering, Certified Machine Safety Expert (CMSE), P.E. license from the State of Georgia in Power Systems, and over twenty years experience in the designing and troubleshooting of power systems, power electronics, AC/DC Drives, PLCs, and control systems including hardware and software. Solutions-oriented and analytical with more than fifteen years of engineering leadership skills, I have created an environment that fosters learning and innovation with diverse teams of engineers and technicians at various levels in their careers.

Professional business leader prepared for challenges of Senior Manager role. Combines deep understanding of business operations with commitment to driving team success and achieving significant results. Renowned for adaptability in dynamic environments and collaborative approach to problem-solving, leveraging keen analytical and decision-making skills.

• P.E. License from the State of Georgia in Power Systems
• Author of 'The Art of Systematic Troubleshooting'
• Certified Machine Safety Expert (CMSE)

• Spearheaded Training and Technical Support for Type Test HPCC 1.0 (450/300kW) and HPCC 2.1 (600kW) (2019 - 2020), First units localized in the United States from Germany, (HPCC - High Power Charger Converter used for eBus charging stations) This design is converted from IEC standards to UL standards., Trained Test Technicians to develop the know-how and skills to test and troubleshoot: HPCC 1.0 Master (300kW) and Slave (150kW) configuration system, HPCC 1.0 Master (300kW) only configuration system, HPCC 2.1, 600kW configuration system., Provided technical support in Portland, Oregon, for system full load Test: Identified and solved the following problems: First Unit; start-up sequence, pre-charge contactor was not closing. Second Unit; regulation of the DC charging current, the AC component amplitude exceeded allowable limits.
• Design of Motor Test-stand including Planning, Budget Management and Developing Test Technicians' Competencies (2019), Within a six months timeframe before the start of production, I had to develop Test Technicians' competency, and design and implement a solution for testing motor overhaul repairs and new manufactured motors., Completed the project on schedule with budgetary savings of 20%; original budget allocation was $50K., Collaborated with colleagues in Germany on the technical specifications and requirements., Managed multiple cross-functional teams (Purchasing, Logistics, Manufacturing, Safety) to source, purchase materials and assemble the system., The Test-stand includes integrating the following sub-systems: Siemens S7 1200 PLC series, SINAMICS G120 Drive, LabVIEW provides high level control and coordination of the testing activities and data collection., Developed Test Technicians with the following competencies: No Load Test, Lock Rotor Test, Vibration Test.
• Design Automated Testing for Traction Inverter Controllers, Reducing Testing Time by 70% (2017), Design and retrofit Test Station to full Automated Testing of Traction Inverter Controllers, integrating Siemens S7 1200 PLC, Comfort TP1500 HMI and LabVIEW as the main platform that orchestrate the automatization activities., Test Preparation: Loading Test Software/Parameters, Reset and Initialize Device Under Test. Check/Clear all system faults and verify system is ready for testing., I/O Checks: Digital and Analog I/O checks., Function Checks: Pre-Charge and Discharge sequence, Software and Hardware Chopper operation., Heat-Run: Heat-run setup and monitoring., Post Test: Erase Test Software and generate Test Report.
• Coach and Mentor Test Engineer on Designing and Retrofitting DC Test Stations (2015), Coached and developed a learning plan for a new employee who had no PLC experience and knowledge., Trained the new employee over a six month period to spearhead the designing and retrofitting of DC Test stations from electromagnetic relays, pushbuttons and selector switches to PLCs and HMIs connected and communicating via ethernet., Using Siemens S7 1200 PLC series and Comfort TP1500 HMI we were able to increase the safety, test capabilities and data collection of the DC Test Stations.
• Design and Build Comprehensive Wire Harness Test Equipment (2013), Design and build comprehensive wire harness test equipment with a new approach using Cirris wire harness test equipment model CH2., Testing multiple types of wire harnesses without requiring changes in system setup or new hardware for each type of harnesses while maintaining 100% test for each harnesses., Improved safety that ensures the tester is safe at all times during Hi-Pot testing., The new Wire Harness test equipment design has eliminated the First Pass Yield (FPY) on the manufacturing floor from 65% to 100%.
• Design, Commission and Program AC Drive Systems for AC Draglines/Haul Trucks (2008 - 2012), Drive sequence logics and the Drive protection scheme., MCC and Switchgear with pilot trip and relay trip coordination for the various feeder circuits., Close loop regulators for motor speed and torque regulator for controlling the various motions on the Dragline and the traction motors on the AC electric Haul Trucks., These Drive systems are designed based on the customer system configuration and the sizes ranges from 2 - 24 MW., Active Front End (AFE) to reduce the Total Harmonic Distortion (THD) and improves the power factor (PF) at the common coupling point of the system.