Stephen Berry

## Control Circuit Design

Design and development of industrial control systems for new installations, machine upgrades, and process improvements, with a focus on safety, reliability, ease of maintenance, and compliance with recognised engineering standards.

Services include:

* Control circuit design
* Motor starter circuits (DOL, Star-Delta, Reversing)
* Variable Speed Drive (VFD) control circuits
* PLC-controlled systems
* Relay logic design
* Safety interlock circuits
* Emergency stop (E-Stop) systems
* Control panel design and layout
* MCC control circuits
* Automatic and manual operating modes
* Local and remote control systems
* Sequential control systems
* Pump and compressor control
* Conveyor control systems
* Process control circuits
* Alarm and annunciation systems
* Instrumentation interface circuits
* PLC input/output (I/O) allocation
* Electrical protection and control philosophy
* Equipment interface design
* Functional design specifications (FDS)
* Cause-and-effect matrices
* Functional testing and commissioning support
* Design verification and documentation

### Deliverables

* Control schematics
* Wiring diagrams
* Panel layout drawings
* PLC I/O schedules
* Terminal schedules
* Cable schedules
* Bill of Materials (BOM)
* Functional descriptions
* Operating philosophy documents
* Commissioning procedures
* As-built documentation
* Revision-controlled engineering drawings

Every control system is designed with careful consideration for operator safety, maintainability, future expansion, energy efficiency, and dependable operation in demanding industrial environments.