MicroGuard® Safety Light Curtain

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MicroGuard® Model SS Safety Light Curtain

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The Model SS is an infrared safety light curtain that is designed to the IEC 61496 standard. When properly installed, it protects the machine operator by passing an invisible infrared light beam across an area to be guarded and examining whether or not the light beam(s) are blocked. If the light beam(s) are blocked, monitored solid state outputs will open, issuing a “STOP” command to the machines normally closed (N.C.) “STOP” circuit.

The System is composed of a transmitting unit (EMITTER), and a receiving unit (RECEIVER). The entire system is control reliable Category 4 (per IEC 61496). A single fault anywhere within the Model SS will not prevent at least one of the solid state outputs from opening up, (allowing a “STOP” command) when either a beam is broken or an internal fault occurs.

PPG Perimeter Guards

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Perimeter Guards utilize wider beam spacing than safety light curtains protecting personnel from "pinch point" or "point of operation" hazard zones. Perimeter Guards are designed to detect when an operator or passerby penetrates the perimeter of a hazardous zone.

The Perimeter Guard safety light curtain will then initiate a stop signal to the machine control. Perimeter Guards also incorporate latching safety relays.

This requires a manual reset after each penetration into the guarded zone.

This is an additional safety feature to protect the intruder from an inadvertent machine actuation while the intruder is within the work area.