91-NWB2-CBO

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Modern industrial automation relies on visual components such as panel indicators, pilot lights, and other light-emitting components to indicate machine operation states. One of the most common and reliable types of panel indicators is the 91-NWB2-CBO, which stands for "indicator lights without bezel and with contact output".

The 91-NWB2-CBO integrates a special two light module design into a single panel-mountable unit. It is equipped with both a white and a red lamp for distinct illumination of either a fault or normal operating state. The indicator has a double-insulated construction for use in any environment, making it optimal for a variety of machinery, and is compatible with both digital and analog controllers.

The main advantage of this panel indicator is the ability to provide an alarm indication and occupancy control at the same time. The two lamps of the 91-NWB2-CBO are independent and optimized to remain illuminated for long periods of time with minimal power consumption. It also has a built-in signal processing unit that signals the controller when either the white or red light is activated, making it an effective supplemental safety measure in industrial settings.

The working principle of this panel indicator is based on two light control modules that are normally part of a system wherein one module is used to control the fail indication or alarm output while the other is used to control the normal operation output. When an alarm condition is detected, the controller activates the red light which remains illuminated until the alarm is reset. The white light, on the other hand, is activated when a normal operation state is detected and is deactivated if an alarm condition is detected.

The 91-NWB2-CBO is considered to be one of the most reliable types of industrial panel indicator on the market today. It is highly resistant to environmental factors, including temperature variations, dust, water, vibration, and electromagnetic interference. Furthermore, it can be used with both digital and analog controllers, making it an excellent choice for any industrial automation system.

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