Controls Engineer PLC / HMI

COLMAC COIL MANUFACTURING; Paxton (IL); On-site; USD 65,000 - 108,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Paid time off

401(k) with employer match

Life insurance

Employee assistance

Job summary

Colmac Coil is seeking a Controls Engineer to develop PLC-based controls for the heat transfer products we manufacture. The role blends desk work designing electrical schematics and PLC/HMI programs with hands-on assembly support, testing, and troubleshooting.

The ideal candidate has a BS in Mechanical/Manufacturing/Electrical Engineering or a related 2-year degree with manufacturing experience, plus knowledge of PLCs, ladder logic, HMI, and Allen-Bradley CompactLogix.

Qualifications

• BS degree in Mechanical, Manufacturing, or Electrical Engineering preferred. A related 2-year degree with demonstrated manufacturing experience will be considered.
• Basic knowledge of PLC programming, ladder logic, and HMI operation is required with Allen-Bradley CompactLogix preferred.
• Ability to read electrical schematics and understand control circuits, relays, signals, and control devices.
• Ability to troubleshoot using schematics, PLC diagnostics, and test instruments; follow safety procedures.

Responsibilities

• Develop and maintain electrical schematics, wiring diagrams, panel layouts, component lists, and PLC/HMI programs for new and existing products.
• Define operating sequences, I/O requirements, alarms, and protective interlocks; select and configure PLCs, VFDs, actuators, sensors, and related components.
• Support product wiring and panel assembly; troubleshoot electrical and programming issues with assembly and testing personnel.
• Perform and document functional testing of I/O, sequences, HMI functions, alarms, and interlocks before shipment.
• Maintain drawings, program backups, revision records, and documentation; support field service with startup and issues.
• Apply electrical standards and safe work practices; other controls duties as assigned.
• Based on experience, may lead controls design, set programming standards, and mentor teammates.

Skills

PLC programming

Ladder logic

HMI operation

Allen-Bradley CompactLogix

Schematic reading

CAD fundamentals

Troubleshooting

Documentation

PID control

Industrial communications

Education

BS in Mechanical, Manufacturing or Electrical Engineering

Related 2-year degree with manufacturing experience

Tools

CAD tools

Test instruments

Job description

Job Title: Oe CONTROLS ~~. ENGINEER

PLC / HMI

Experience Level: Entry Level (0-2 Years), Mid Level (3-6 Years), or Senior Level (7+ Years)

Colmac Coil is seeking a Controls Engineer to develop PLC-based controls for the heat transfer products we manufacture and sell. The role combines desk work designing electrical schematics and PLC/HMI programs with hands‑on product assembly support, testing, and troubleshooting. Responsibilities reflect experience level. Benefits include medical/dental/vision insurance, paid time off, 401(k) with employer match, life insurance, employee assistance, and training opportunities.

Responsibilities Include:

• Develop and maintain electrical schematics, wiring diagrams, panel layouts, component lists, and PLC/HMI programs for new and existing products.
• Define operating sequences, I/O requirements, alarms, and protective interlocks with engineering. Select and configure PLCs, VFDs, actuators, sensors, and related components.
• Support product wiring and panel assembly. Troubleshoot electrical and programming issues with assembly and testing personnel.
• Perform and document functional testing of I/O, operating sequences, HMI unctions, alarms, and interlocks before shipment.
• Maintain drawings, program backups, revision records, and operating and troubleshooting documentation. Support field service with product startup and controls issues.
• Apply applicable electrical standards, product requirements, and safe work practices, Other controls engineering duties as assigned.
• Based on experience, the role may include leading controls design, setting programming standards, and mentoring team members.

Required Education

• + BS degree in Mechanical, Manufacturing, or Electrical Engineering is preferred. A related 2-year degree with demonstrated manufacturing experience will be considered.

Knowledge, Skills & Abilities:

• + Basic knowledge of PLC programming, ladder logic, and HMI operation through coursework, projects, internships, or work experience. Allen-Bradley CompactLogix experience is preferred.
• + Ability to read electrical schematics and understand control circuits, relays, digital/analog signals, and control devices. CAD fundamentals and ability to learn electrical design tools.
• + Ability to troubleshoot systematically using schematics, PLC diagnostics, and test instruments, and follow electrical and plant safety procedures.
• + Ability to document technical changes and test results accurately, communicate with engineering and plant personnel, and organize work to meet deadlines.
• + Familiarity with PID control, temperature/pressure control, and industrial communications is preferred. HVAC or refrigeration experience is a plus.

Salary Range

- $64,681 - $107,811 annually

Physical Demands

(S=Seldom 0-10%, O=Occasional 11-33%, F=Frequent 34-66%, C=Constant 67-100%) The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job with or without reasonable accommodations. Stand/walk (O), sit (F), bend/stoop (O), perform work from ladder (S), climb stairs (S), twist (O), squat/kneel (S), crawl (S), reach (O), work above shoulders (S), grasp (O), fine manipulation (F), operate foot controls (S), lift/carry/push/pull up to 50# (S) vibratory tasks (S), wrist (flexion/ extension) (O). Indoor work environment, occasional outdoor duties, occasional high noise levels.

Midwest Division 350 Baltimore Dr - Paxton IL 60957 - USA Tel [phone] - Fax [phone] Manufacturing Inc. www.colmaccoil.com