Chonghui (David) Ma Email & Phone Number

Acheson, Alberta, Canada

Edmonton, Canada Area

Regular maintenance for Automation/Electrical system• Performed routine inspection and daily support for automation maintenance and electrical maintenance strictly followed safety code and working procedure.• Maintained and troubleshoot of real-time applications for PLC, HMI, ABB Robot, Industry computer programs, Communication protocols and Local Area Networks (TCP/IP).• Performed troubleshoot, investigation and provide solution for electrical system and equipment include VFD, electric motor, network switch, sensor, relay, controller, breaker etc.• Programming on Allen Bradley PLC, HMI, Ignition and Robot by using Studio 5000, FactoryTalk View, Ignition Designer, ABB RobotStudio and ATS system.• Performed electrical equipment replacement and new installation.Software Development• Performed developing and improving automation processes throughout the various business lines.• Developed custom applications and scripts for different manufacture departments by using C#, Ignition, Python, ASP.NET and JavaScript.• Development of SSRS reporting services and dashboard for both Canada and US Supply Chain, Inventory and Order management departments to improve information availability.• Performed data analyst, dashboard development for manufacture departments by using Eclipse BIRT Report, PowerBI, SSRS and Ignition.• Responsible for designed and maintain Inductive Automation and OEE (Overall Equipment Effectiveness) database. • Prepared User Acceptance Test, informative training material and provide training on new and existing applications.Industrial Projects• Responsible for managing and developing Enterprise Manufacture Intelligence (EMI) project, establish departments’ KPI, Efficiency, Utilization by using Ignition, Python and C#. • Established efficiency modeling for all departments by using regression algorithm in Python.

Edmonton, Canada Area

Job duties:• Troubleshoot automatic car wash equipment related PLC controllers, electronic, electromechanical chemical and mechanical equipment.• Diagnose and repair car wash equipment malfunctions.• Perform periodic scheduled and corrective maintenance of installed equipment.• Prepare detailed service and failure records and recommend changes.• Maintain tools, test equipment, and materials.• Counsel clients relating the use, operation, and maintenance of equipment.

Beijing City, China

Job duties:• Updated design of single line diagrams, schematics, wiring diagrams and electrical equipment layouts for wind/solar VFD for China market.• Designed single line diagrams, schematics, wiring diagrams and electrical equipment layouts for VFD function test cabinet and load test platform based on Siemens S7 series PLC for manufactory in China. Wrote and tested PLC program for both test devices.• Prepared technical documents for production and customer including BOM, specification, technical manual, troubleshooting guide.• Provided onsite commissioning and troubleshooting support for customers, conducted investigations and solved all technical issues of VFD for wind/Solar • Provided technical support of VFD for customer and product manufacturing.• Started up and tested VFD in customers’ site. Project 1:• 1.5 MW wind power VFD function test cabinet and load test platform Project 2:• 1 MW solar power VFD function test cabinet and load test platform Project 3:• 1.5 MW wind power VFD design updating for China marketProject 4:• 1 MW solar power VFD design updating for China market

Shanghai City, China

Job duties:• Updated PLC programs based on GE Mark VIe control system for GE wind turbines in China market. • Designed single line diagrams, schematics, wiring diagrams and electrical equipment layouts of GE wind turbine control simulator and VFD control simulator. • Built GE wind turbine control system simulators in Lab, and used them to train site engineers and clients. • Provided technical support for field engineers and customers regarding PLC, VFD, and other electrical issues. • Designed communication protocol for GE I/O controller applied on DCS in power plant. • Wrote troubleshooting guide for GE 1.5 MW wind turbine. • Started up and tested GE new 1.5 MW wind turbines for two wind farms in Wyoming, US.Project 1:• GE 1.5MW wind turbine updating project for China marketProject 2:• GE new 1.5MW wind turbine prototype startup and commissioning in Wyoming, USProject 3:• GE I/O controller design for power plant DCS

Harbin, Heilongjiang, China

Job duties:• Designed single line diagrams, schematics, wiring diagrams and electrical equipment layouts for wind turbine electrical system.• Wrote programs on BECKHOFF, SIMENS and SIXNET PLCs for wind turbine control . Designed HMI screens with PROFACE, SIMENS and ADVANTECH HMIs.• Wrote communication interface code based on VB.net for wind farm SCADA system including Modbus, Modbus-Ethernet, Profibus, Profinet, TCP/IP, UDP and etc.• Updated design of single line diagrams, schematics, wiring diagrams, electrical equipment layouts and HMI station screen of TOSHIBA DCS for China market.• Translated TOSHIBA DCS technical manuals.• Started up and tested prototype products at site. • Provided technical support for production manufacturing.• Wrote technical documents including BOM, specification, user manual and troubleshooting guides.