Start/on actuators should be White, Grey,Black and Green
Color red and a combination of red button with yellow background only for emergency stop
Stop/off actuators should be black, gray or white. Do not use green
White, gray or black are colors for start/on and stop/off. Do not use red, yellow,green
White, gray or black are for actuation buttons (actuation= in operation, release=operation off)
Reset actuators must be blue, white, gray or black. Do not use green
Yellow is to be used for abnormal conditions (e.g. automatic cycle interruption).
Description of the machines indicator lamps
Colors machines indicator lamps
Red, yellow, blue and green should be used to attract the attention of operators.
Blue and white are normally used to confirm a command.
Engravings for pushbutton actuators
When using the same color for different functions, an additional coding means (engraving/symbol) should be used.
Ready for operation
Push button (change on or off)
Emergency stop button EDI
Safety interlock tGard
Recessed pushbutton elements
Safety control with operating elements