Stack lights are used to improve safety and communication, many automated tasks in manufacturing involve status indication.
Stack lights may also be referred to as signal lights, andon lights, smart lights, machine status lights and tower lights.
Andon lights refer to stack lights used in lean manufacturing and andon systems that will signal errors or process needs in real time. Ther term 'andon' originated in Japan as part of the Toyota Production System (TPS) in the mid-20th century. It is common in lean manufacturing and just-in-time (JIT) production.
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We combine beacons, strobes and warning lights because they are often interchangeable used even though there are some variations.
Beacon lights, also called signal lights or rotating beacons, are rotating or fixed lights that give you a highly visible signal. They are used to indicate the status of machiner, a process or emergency conditions. Generally these will have a steady or rotating beam.
Strobe lights, also called strobe beacons, emergency strobes and flashing lights, are high-intensity, flashing lights that give brief, powerful bursts of light at regular intervals. Great for bright or smoky environments, they are often used for urgent or emergency signaling.
Warning lights, also called alert lights and signal beacons, is a broader category including both of the above. They can be steady, flashing or rotating and are often used with audible alarms for maximum alert.
These lights are mounted on control panels and machinery in a wide range of applications.
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Industrial indicator lights, also called pilot lights, are visual signaling devices that are widely used throughout manufacturing, processing and control systems.
Generally they are used to show that a machine process has started, stopped or needs attention. These handy little lights can help operators identify faults in the circuit or system or just show that everything is operating correctly.
Color coding standards typically are:
- Green: everything is operating as it should
- Red: error, danger or malfunction
- Amber/yellow: caution, warning, needs attention
- Blue: mandatory action required
- White/clear: neutral status
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Industrial buzzers and alarms are used to provide a signal of warning, notifications or statuses of processes. They are also referred to as piezo buzzer, horn, siren, annunciator, sounder, beeper or alarm.
To be able to hear the audible alarm, it should be at least 10dB above the ambient background noise. To give you an idea of dB levels; a library is generally around 30dB while a heavy truck could be around 90dB.
Alarms can be everything from a constant or on/off beep, music, pre-programmed tones, recordable messages, siren, electronic and more. Adjustable volume, tone outputs and mounting options give you a number of models for your application.
If you are looking for a warning light or stack light with an alarm, you might find these categories helpful:
