AIT 205 - Electronic Control Systems I

1. Connect, test, and troubleshoot: linear and switching DC power supplies; and basic PLC and controlled components.
2. Install and test solid-state AC and DC discrete and analog relays.
3. Install, adjust, and test analog sensors and signal conditioning equipment.
4. Connect and transfer programs to a programmable controller (PLC) using a PC.
5. Create a basic PLC ladder-style program.

1. Linear and Switching DC Power Supplies (e.g. Connecting, Testing)
   1. Measure output (i.e. to determine noise or quality of filtering)
   2. Operations of:
      1. PN junction diodes
      2. LED’s
      3. Zener diodes
      4. Voltage regulators
   3. Half wave and full wave rectifiers
   4. Capacitive, inductive, and resistive power filters
   5. Operations of biopolar and FET transistors (used in power supplier), and SCRS
   6. Operation of linear and switching power supplies
      1. Connecting
      2. Testing
2. Solid-State AC and DC Discrete and Analog Relays (e.g. Installing, Testing)
   1. Operation of:
      1. Discrete and analog solid-state relays
      2. Sourcing and sinking circuits
   2. Solid-state relay:
      1. Styles (also of mountings)
      2. Schematic symbols
      3. Specifications
   3. Solid-state relays in electrical circuit (given schematic)
      1. Installation
      2. Failures
      3. Multimeter testing
3. Analog Sensors and Signal Conditioning Equipment (e.g. Installing, Adjusting, Testing)
   1. Operation of:
      1. 4-20 ma current output and voltage output signals
      2. Signal conditioners for analog sensors
      3. Thermistors, RTD temperature sensors, and thermocouples
      4. Resistive, capacitive, and piezoelectric pressure sensors
   2. Interpreting specifications for analog sensors
   3. Sensors and associated signal conditioners
      1. Connecting (installing, adjusting)
      2. Testing
      3. Types of failures
      4. Adjust range and zero point (of analog signal conditioner)
4. Connecting/Transferring Programs to a Programmable Controller (PLC) (Using a PC)
   1. Basic operation of a PLC
   2. Basic operation and navigation of PC software for PLCs
   3. Nomenclature for PLC program file elements
   4. How PLCs are wired to power, I/O, and network devices
      1. PLC network operations
      2. Devices: how identified on PLC network
   5. Ladder logic (e.g. use and importance of comments)
   6. PLC modes (e.g. able to change modes)
   7. PLC and PC
      1. Connecting
      2. Transfer programs between PC and PLC via:
         1. Serial
         2. USB
         3. Ethernet connection
5. Basic PLC Ladder-Style Program
   1. PC software, PLC program, and reviewing files
   2. Interpreting PLC programs:
      1. Internal and external contacts
      2. Timers
      3. Counters
      4. Non-retentive output coils
      5. Internal coils
      6. Subroutines
      7. Conditional commands
      8. Math commands
   3. Interpreting PLC programs that control/sequence electric motors and fluid power systems
   4. PLC I/O diagram interpretation
   5. I/O device identification by memory address
   6. Function of analog I/O card
   7. Address scheme of a PLC
   8. Operation and basic PLC commands related to:
      1. Internal and external contacts
      2. Timers
      3. Counters
      4. Non-retentive output coils
      5. Internal coils
6. PLC Component Installation and Testing
   1. Connecting and configuring HMI to a PLC via network or direct connection
   2. Installing and configuring PLC and its components
   3. Powering up HMI
   4. Viewing data from HMI panel
   5. HMI screen navigation
      1. Touchscreen
      2. Function keys
   6. PLC program operation interpretation (using ladder logic program to interface to a hardware component)
7. PLC System and Controlled Components Troubleshooting
   1. PLC troubleshooting flow chart
   2. PLC program history
   3. Systemic methodologies
   4. HMI
      1. To troubleshoot PLC-controlled machine
      2. To troubleshoot HMI on a PLC-controlled machine
   5. Tune performance of PLC-controlled machine via:
      1. Mechanical adjustments
      2. Electrical adjustments
      3. Software adjustments
   6. Team skills to install, troubleshoot, and optimize systems