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Muting module allows light curtain bypass

Supplier News
article image Bypassing safety light curtain output.

BANNER Engineering has announced its Universal Muting Module, a safety module that monitors inputs from sensors to determine when a car body, pallet or other work piece needs to pass through a safety light screen into a work cell or hazardous area without causing the machinery to stop.

Available from Micromax , the diverse-redundant microcontroller-based module allows the system to safely bypass (mute) the safety light curtain outputs.

This function may be necessary for certain production processes to run smoothly without continuous stopping and starting; and also to ensure that the overall safety of personnel working around the machinery is not jeopardised.

The module is used with Banner's EZ-Screen grid and point perimeter guards, Mini-Screen, Micro-Screen or Machine-Guard safety light screens and other safeguarding devices, to provide a complete package for guarding entry/exit points anywhere work-in-process needs to flow freely into and out of hazardous work cells.

The Muting Module uses inputs from sensors or switches and from the safeguarding device to help determine if the light screen obstruction is an acceptable work piece.

If a person attempts to walk through the light screen at any point during a machine cycle, it does not allow the safety system control to be muted and causes the dangerous machinery to stop.

The Universal Muting Module, is very rugged and compact, rated IP65, a unique advantage over competitive systems, since it can be mounted near the guarded area without the need for an enclosure.

All connections are made via standard quick-disconnect cables.

The full-featured module can monitor two or four inputs and includes selectable automatic or monitored manual reset, allowing flexibility for point-of-operation or perimeter guarding.

It also includes a universal safety stop interface (USSI) for easy connection of supplemental safeguarding devices or E-stops, plus selectable external device monitoring (EDM) for monitoring the state of external devices, such as MPCEs (Machine Primary Control Elements).

The new device is easy to install. Eight Euro-style quick-disconnect I/O ports allow easy connection of mute inputs, mute lamp output, override, USSI, and reset. Two mini-style quick disconnects allow interfacing with the safety system and machine control.

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