Lazer Safe SENTINEL PLUS Operation Manual
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Sentinel Plus Press Brake Guarding System Operation Manual LS-CS-M-073Page 46Original Language Version: 1.04 Released: 19/07/2017If the machine is idle for more than five minutes the Setup mode will be cancelled. If themachine does not have open tools when the timeout occurs, the Sentinel Plus will wait untilthe tools are opened. It will then exit Tool Setup mode, and return to the previous operatingmode.6.11 Emergency Stop OperationDepending upon your installation, external inputs may be connected to the PGS-3 whichtrigger emergency stops (E-Stops). When an E-Stop occurs, operation of the machine isimmediately stopped, and cannot continue until all E-Stop conditions are cleared.• Emergency Stop Button. This allows the Operator to manually trigger an E-Stop ofthe machine. Normal operation cannot be continued until the E-Stop switch is reset.• Rear Gate. A safety switch is connected to the rear gate of the press brake, andtriggers an E-Stop when the rear gate is opened. The E-Stop cannot be cleared untilthe rear gate is closed.• Side Gates. Safety switches connected to the side gates of the press brake triggeran E-Stop when either gate is opened during normal operation.The behaviour of the system when the side gates are open depends upon which E-Stopoption has been selected during installation.E-Stop Option 1. If any side gate is open no down movement is allowed. The E-Stopcannot be cleared until the door is closed.E-Stop Option 2. If one side gate is open (and all E-Stops have been cleared) the machinemay be operated, but down movement is restricted to crawl speed. The message CRAWLSPEED side gate open – CLOSE SIDE GATE is displayed. If both side gates are open no downmovement is allowed.In all of the cases listed above, the User Interface Panel will display the reason for the E-Stop, and the Operator action required.6.12 External Device Monitor (EDM)Depending upon your installation, External Device Monitors (EDM) may have beenconnected to the PGS-3 which monitor the operation of valves, relays or solenoids. TheSentinel Plus continually monitors these devices to ensure that they are operating correctly.If a monitored device fails, the Sentinel Plus will trigger an E-Stop and display the messageExternal device monitor A turn B error – CHECK EDM A where• A is the number of the monitor; 1,2,3 or 4.• B is the type of failure, either on or off.If the Sentinel Plus detects any voltages on the EDM inputs and the system has not beenconfigured for EDM, it will display the message EDM wiring does not match EDM option -CHECK EDM MENU OPTION. This may occur if the User Interface Panel has been replaced orupgraded without the option being configured correctly.If either of these conditions occur please contact your local service representative. |
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