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3D SYSTEMS, INC
.
PN:80-D48 REV A
DMP System Response if an Interlock Fails
Safety interlock devices mounted on the DMP system sense the hazardous operating conditions below . The DMP system
takes the actions listed when an interlock fails .
SAFETY INTERLOCKED CONDITION
IF THIS INTERLOCK FAILS . . .
•
For all conditions
•
No job will start
•
Warning message appears on DMP system display
•
Front doors open
•
Scanner head open
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Orange stacklight illuminates
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Laser interlock activated
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Supply of the motors is cut off: carriage and feeding
•
Airlock door open
•
Airlock motion blocked
•
E-Stop
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Supply of the motors is cut off
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Laser power cut off
•
230V actuators cut off (blower, light, oven, vacuum
cleaner recoiler)
•
Red stacklight illuminates
•
Oxygen in process chamber too high
•
No job will start
•
Warning message appears on DMP system display
•
Blower not operating
•
Process filter valves closed
Limited Access and Barrier Shielding
DMP equipment frame and enclosure designs limit access to the following:
•
Service areas
, such as cabinets and enclosures for electrical power and automation controls . This prevents accidental
exposure to electrical shock hazards .
•
Material areas
, such as material feed hoppers . This prevents:
•
burn hazards by minimizing exposure to heated material
•
slip hazards by preventing material from spilling onto the floor
•
fire hazards by minimizing airborne dust cloud formation and potential ignition. See SDS for complete material
hazard details .
•
Laser beam optics and scanning areas
, including the fully-enclosed print head—where the laser beam originates—
and the interior of the print chamber, into which the beam projects . The scan head and chamber are designed to mini-
mize hazards such as burns, eye injury, and fire in the following ways:
•
The scan head optics and laser beam duct (at the top of the chamber) prevents the laser beam from being aimed
outside the print chamber .
•
The fully enclosed chamber blocks laser radiation from escaping to the outside .
•
The material of the chamber window, which conforms to CE EN207, also blocks laser radiation so you can safely
observe the part during a print .