Micronor MR380-1-3, Инструкция по эксплуатации

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MR380-1-3 Instruction Manual
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1. Product Description
MR387 Fiber Optic Emergency Stop Switch
Figure 1. MR387 Emergency Stop Switch with MR380-1-3 Controller
The MR387 Fiber Optic Emergency Stop Switch paired with MR380-1-3 Controller provides a new,
innovative emergency signaling detection that can be deployed in hazardous environments and
over very long distances. The E-Stop Switch employs a photo interrupt scheme operating over a
duplex multimode or single mode optical link that allows for reliable signal detection and
implements a known default failure state.
The optical signal levels are rated inherently safe, allowing the sensor to be safely deployed in any
type of explosive atmosphere or hazardous location. The entire fiber optic sensor system has a
generous system loss budget, enabling long distance systems, complex routing and daisy chaining
of multiple switches.
Depressing the switch interrupts the optical signal and the controller provides both Double Pole
Double Throw (DPDT) relay contacts and digital outputs for signal and control. The controller will
indicate if there is a broken fiber connection or depressed switch in the system which provides
increased safety margin over electrical emergency switches. The controller will always default to
the emergency state when the switch is depressed, in case of a broken or disconnected fiber, or
due to loss of power to the controller unit.
Multiple E-Stops may be wired in series to one controller as long as all optical losses fall within the
optical loss budget of the controller used.
Figure 2 provides a complete functional overview of the emergency switch system.