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Safety Interlock System

Introduction

The printer has three Emergency-Stop buttons. The Maintenance Station drawer and the Carriage Guard are also part of the safety interlock system. A beacon light indicates the status of the safety system and the printer.

Components of the Interlock System

Emergency Stop Buttons:

They are located on the Operator Control Station, and on each end of the Gantry. Activating an Emergency-Stop button stops all printer motion and turns off the UV curing system.

To re-activate the printer after you press an Emergency Stop button, turn the button counter-clockwise. Upon release of the button, no motion can be initiated without acknowledgment of the Operator from the Control Station.

Maintenance Station Interlock Function:

The Maintenance Station is located under the carriage and provides access to perform Printhead Maintenance and swab printheads. Carriage and Gantry motion motors are disabled and UV lamps are turned off (if they were On), when the station drawer is open. The Interlock system is automatically reset when the drawer is closed.

Power-up Interlock Test for Carriage

On power-up, the Interlock System will not permit printer motion. the Carriage Guard Interlock must be cycled to ensure the Interlock is functional and that the Carriage Guard is in place. Upon cycling of the Carriage Guard Interlock, no motion may be initiated without acknowledgment of the Operator from the operator control station.

Beacon Light Status

A green beacon light is mounted to the top surface of the printer carriage. The purpose of this light is to indicate basic printer status to the operator.

Beacon off: indicates the printer can be approached without caution. The machine cannot initiate movement since the interlock Safety System has disabled all motion and hazardous hardware.

Beacon on: indicates the printer is powered up and ready to initiate motion. This tells an operator to approach the machine with caution, because it can initiate motion at any moment.