Controls Engineer Electrical

David Erdmann Orlando, FL 713-***-****

CONTROLS ENGINEER **********@*****.*** Linkedin.com/in/david-erdmann-44aa5a12/ October 23, 2024

Dear Hiring Manager

Your need for an experienced controls/designer/electrical engineer is an excellent match to my background and career goals. With 20+ years of progressively responsible experience, I am confident I can make an immediate contribution given the opportunity. Highlights of my qualifications most relevant to your needs include and although the experience may not be directly tied to a specific area, most automation and controls applies to many different areas in industry regardless of whether it is a rocket engine or food procession machine.

When tasked to design and build 22 robot systems for Universal, I was presented with a preliminary design for the prototype robot. Since we needed 22 different designs for robots, I found commonality and streamlined the documents for easy build, troubleshooting, and maintenance. I accomplished the task with saving time and money to get the product built. The robots were tested with minor issues. When tasked to troubleshoot a few issues, it became very easy to find and fix problems. Mostly it was due to improper construction or a component that gave unexpected results that differed from the datasheets.

When I was challenged to update the entire ride control system for the iconic Splash Mountain in Walt Disney World, I created about 300 schematics from old controls. This allowed me to eliminate errors and simplify hookup methods. Based on schematics I created a new cabinet and conducted the logic check on coding. Thanks to my efforts, downtime was greatly reduced, and the system's replacement was deemed quite easy by colleagues.

Likewise, working on the controls for braking system for Safari Vehicles at Animal Kingdom, I identified components that could be reduced to increase efficiency, going down from 4 to 1. Then, I had to justify my recommendation to the lead engineer, who agreed 100%. As a result, the replacement time for brakes fell, needed components were reduced, and component failures as well.

Working as a Controls Engineer at High-Mark, I was tasked with developing the Barcode Interface System for the company. For this, I designed the PLC, ladderlogic, and cabinets to interface with barcode readers and cameras. This system was so robust that it is still a mainstay at High-Mark, enduring 12+ years of use and bringing great value to the company. HighMark makes quality inspection machines mostly for the food processing industry.

At International Electric Corporation, to interface to high-voltage SCR failure detection, I used optoisolators to separate the high voltage from the logic board. This allowed the company to detect thousands of critical failures, which projections show has saved the company millions of dollars. I would welcome the opportunity to discuss my background with you in detail and to learn more about your company and its goals. My résumé is attached and offers additional information about my specific achievements. Feel free to reach me at **********@*****.*** or 713-***-****. I look forward to our conversation.

Sincerely,

David Erdmann

David Erdmann Orlando, FL 713-***-****

CONTROLS ENGINEER **********@*****.*** Linkedin.com/in/david-erdmann-44aa5a12/ Engineer with 20+ years of progressive technical experience. Evolves knowledge to keep up transformations in digital systems, designs controls for maximum efficiency. Utilizes comprehensive experience in software & systems. Streamlines processes with innovative solutions by leveraging expertise in several fields of engineering. Simplifies designs to save costs, reduce failure points, and yield gains in revenue. CORE EXPERTISE

Repairs & Troubleshooting

Digital & Analog Circuit Design, including Safety Circuits for Safety Systems

Results Oriented

Rational Problem Solving

Microsoft Office Suite

PLC Programming, Unitronics, RSlogix, Beckhoff

AutoCad, Solidworks, and Eplan

PROFESSIONAL EXPERIENCE

ROUSH Controls Electrical Engineer Oct 18, 2021 – Oct 17, 2024

22 Robot Systems for Universal Studios

Designed Safety Systems for at least 3 Robots

SAE and SIL rated equipment with braking for HD motors

Tested PLC rack using Beckhoff Software with Ethernet and Remote Programming

Designed over 200 different cables for various functions

Calculated Current Loads and Requirements for various functions using EXCEL spreadsheet programming

Started to implement and easy to use ECO form using VBA in Excel Spreadsheet

Various Control Software for HD motors for testing and verification

Performed SAT tests to approve operation of basic MCC function. WALT DISNEY WORLD Designer / Engineer Jan 2008 – Aug 2020

Ride Control Systems for Splash Mountain

Monorail Logic Controls

Safaris Braking Enhancement, including Safety Analysis for the system.

Star Wars Parade Floats

Starting System for Indy 500

Laundry System using RSLogix for MicroLogix AB controller.

Achieved Disney Grape Soda Award for outstanding efficiency, customer service, and focus on safety.

Awarded and recognized for 2 innovative ideas.

Created control systems according to Disney & NASA standards.

Led projects: Splash Mountain Ride System, Space Mountain additions, Safaris Vehicle Braking, Documents and circuits for Steam Train, Parade Floats for Star Wars show, Fireworks control, Cars Animation controls. HIGH-MARK Controls Engineer Dec 2004 – Dec 2008, Oct 2020 – July 2021

Barcode Scanners and Vision Systems

Barcode Scanner Systems

Circuit Board Schematic

Engineered conveyor systems for General Mills, Hormel Foods, Polaris, Sara Lee Foods.

Designed PLC, Unitronics ladderlogic, and cabinets for Barcode Interface System.

Created user-friendly circuit board that has seen continued use for 12+ years. INTERNATIONAL ELECTRIC CORP. Field Technician & System Development Feb 2002 – Feb 2003

SCR Controls Systems Designer & Tech

Prevented millions of dollars in failures by using optoisolators to separate high voltage from logic board. ROCKWELL AUTOMATION Designer Oct 2000 – Oct 2001

Designed new motor control system according to strict company guidelines. PYRO-MATIC INC. Repair & Calibration Technician Previous Experience

Secured ISO9000 certification by developing IEC25 Manual for Temperature Controls

Calibrated and repaired temperature controllers to minimize inaccurate readings and provide superior service.

RAFFEL PRODUCT DEVELOPMENT Engineer Previous Experience

WAGO CORPORATION Electrical Engineering Assistant Previous Experience EDUCATION & PROFESSIONAL DEVELOPMENT

B.S. Electrical Engineering Technology Milwaukee School of Engineering Courses in: Computer, Electrical, Robotics, NASA, & Architectural Design FE & PE Certification 50% Completion

PROFILE PROGRAMMING AND COMPUTER KNOWLEDGE

PLC and Ladder Logic Programming.

Ethernet and Systems Coordination for Transfer of Data.

Robot Programming.

C, C++, Cobol, Assembly, Basic, Visual Basic, Adept V+, Fortran

AMAPS, NEWS (New Engineering Workstation).

Microsoft Office (Word, Excel, Database, etc.).

AutoCAD various versions, Protel, Solidworks various versions, EPLAN.

PIC Microprocessor.

Smarteam.

RULES, REGULATIONS, PUBLICATIONS, AWARDS

Designed circuit boards using UL840, 508A, IEC, and other regulations.

Automated Model Railroad Project using PIC controller published in Model Railroader.

Control Systems using NASA and Disney Standards.

Disney Grape Soda Awards for great efficiency, customer service, and safety.

Disney awards and recognition for 2 new ideas.

Currently Studying to take the FE exam.

CONTROL CIRCUITS

PID Controllers.

Mitsubishi PLC downloading experience, Horner PLC programming, Allen Bradley PLC programming, Unitronics PLC integration, and programming

Circuit errors and troubleshooting.

Pentair home pool and spa automation equipment (installation & programming).

Roller Coaster, Monorail, Conveyor Automation Controls. MISCELLANEOUS

PWM Motor Controller Design for Museum Railroad control.

Familiar with low voltage power supplies, according to datasheets, and their usage.

Pool pump automation, including integrating portable spa into permanent pool, using pump and valve controls, and preventing cavitation, and 2 spd pump for jets and circulation.

Industrial PID heat controls, Watlow, Honeywell, and integration of Spa Heater into pool system.

Develop 512hz transmitter circuit for underground pipe detection using transistors, 555 timers, and a voltage pump circuit.

Worked on basic replacement in drawings of Ferryboat Firesystem at Disneyworld.

Redesign of Motor Drive at HighMark to meet drive standards of equipment per datasheets. REFERENCES: Available on Request

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