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Interlock Safety System
Interlock Safety System
Introduction
The Arizona 250 GT printer has an integrated safety interlock system that stops all
machine motion when a situation that might compromise operator safety occurs. The
printer has three Emergency-Stop buttons: one on each end of the gantry, and one on
the Control Station podium. Activating an Emergency-Stop button will switch the
Safety Monitoring Relay input circuits. This causes the system to isolate the power
to the motion control motors, and also turns off the Arizona 250 GT curing system
(UV lamps). The Maintenance Station and the Safety Gate on the carriage also have
an interlock function. Beacons lights indicate the status of the safety system as
explained in this section.
How the Interlock System Works
All system Interlock circuits operate as one. This means that any open interlock
switch and/or Emergency Stop switch kills motion ability in all system electronics.
Drive(s) needed for media loading purposes are exempt from this requirement. Both
System PCB's contain the same Safety Interlock Circuit that functions as a single
unit. However, an over-current condition in the Drive circuit on one PCB can disable
itself without the knowledge/action of the other PCB's.
Emergency Stop Function:
There are three Emergency Stop buttons, one is located at the Operator Control
Station, and one at each end of the Gantry. The fourth Emergency Stop is the AC
power Supply Disconnect. Motion Motors that are disabled include the Gantry
Drive, Carriage Drive, Z-Axis Drive (Carriage up and down movement), all Ink and
Maintenance Pumps, Heaters, Table Vacuum Pump, and UV Lamps (not UV
Cooling Fans).
Upon release (reset) of an Emergency Stop, no motion may be initiated without
acknowledgment of the Operator, i.e. User interface message on the LCD display
with Operator intervention acknowledgment. To re-activate the printer after you
press an Emergency Stop button, turn the button counter-clockwise. If the printer has
encountered an error, you must correct that error first. Errors are displayed on the
LCD panel that is part of the Control Station. When the error is corrected, release the
Emergency-Stop button, acknowledge the User interface message and continue
printer operation.
Maintenance Station Interlock Function:
The Maintenance Station is located under the carriage and provides access to clean
the printheads. Carriage and Gantry motion motors are disabled and UV lamps are
turned off (if they were On), when the station sliding door is open. This includes the
Gantry Drive and Carriage Drive. Interlock system is automatically reset when
sliding door is closed. No User interface message with operator acknowledgment is
required to re-enable function of the printer.
Summary of Contents for Arizona 250 GT
Page 1: ...Arizona 250 GT Oc User manual User Manual Revision D...
Page 6: ...6 Table of Contents...
Page 7: ...7 Chapter 1 Introduction...
Page 16: ...16 Chapter 1 Introduction Product Compliance...
Page 17: ...17 Chapter 2 Product Overview...
Page 21: ...21 Chapter 3 Safety Information...
Page 45: ...45 Chapter 4 How to Navigate the User Interface...
Page 51: ...51 Operator Interface Hardware Thermal fluid heater Purge pump Purge valve Printheads jetting...
Page 70: ...70 Chapter 4 How to Navigate the User Interface Installation and Upgrade Module...
Page 71: ...71 Chapter 5 How to Operate the Arizona 250 GT...
Page 96: ...96 Chapter 5 How to Operate the Arizona 250 GT Underlay Board to Reduce Artifacts...
Page 97: ...97 Chapter 6 How to Operate the Roll Media Option...
Page 122: ...122 Chapter 6 How to Operate the Roll Media Option How to Determine Media Advance Correction...
Page 123: ...123 Chapter 7 How to Use the Static Suppression Upgrade Kit...
Page 127: ...127 Chapter 8 Ink System Management...
Page 134: ...134 Chapter 8 Ink System Management How to Change Ink Bags...
Page 135: ...135 Chapter 9 Error Handling and Troubleshooting...
Page 139: ...139 Chapter 10 Printer Maintenance...
Page 172: ...172 Chapter 10 Printer Maintenance How to Clean the Rubber Capstan...
Page 173: ...173 Appendix A Application Information...
Page 176: ...176 Appendix A Application Information Application Resources on the Web Site...