What does a red indicator light on industrial machinery indicate?

A red indicator light on industrial machinery typically signifies a danger alarm that requires immediate attention. This is a standard convention in the design of industrial equipment, where colors are used to convey important operational statuses. Red is universally understood as a warning or alert signal, indicating that there is a potentially hazardous situation that could pose risks to personnel or equipment. This immediate attention is crucial to prevent accidents or further damage, making it essential for operators to respond quickly when they see a red light. The use of red as an alert color helps ensure that workers and operators are aware of serious issues that could require shutdowns or interventions to maintain safety.