An electrical and controls review checks whether the drawings, hardware, software, and actual machine behavior describe the same system. It can be performed during design, before a build milestone, during commissioning, or after a modification.
Electrical design and machine interfaces
Review drawings, protective bonding, disconnecting means, control panels, wiring methods, device ratings, and interfaces to motors, drives, robot controllers, and auxiliary systems. Issues are recorded with drawing references and practical correction notes.
Safety circuit and drive functions
Examine how guard switches, light curtains, scanners, enabling devices, emergency stops, and other inputs initiate the intended responses. Review reset logic, feedback monitoring, fault detection, and drive functions such as safe torque off where specified. The application and required safety performance determine what is appropriate.
Control logic and operating modes
Review safety PLC logic and interfaces between standard and safety control. Consider automatic, manual, setup, recovery, and maintenance states, including bypasses and restart behavior. The objective is to identify missing or ambiguous behavior before it becomes embedded in production.
Test and commissioning support
Develop test steps that exercise each requirement and its relevant faults. Support FAT or SAT witness activities, capture evidence, and track issues to closure. Tests should reflect the final hardware, software, tooling, payload, and application configuration.
Deliverables
Outputs may include annotated drawings, review comments, circuit and logic observations, test records, and a prioritized issue list. Reviews are limited to the documents, hardware, and operating conditions made available.