103D SYSTEMS, INC. PN:80-D27 Rev.B
Other Active Safety Features
Components approved in accordance with standards EN 60204-1 (safety of machinery):
• Emergency stop (as per IEC 947-5-1): the emergency stop is located on the control display; it activates immediate shut-
down of the following components: oven, laser, motors, turbines, as well as the pneumatic drives.
• Safety switches (as per EN 1088): these devices isolate the laser when opening one of the main doors or the scan head.
They make it possible to lock and unlock the main doors,
• Electrical isolation : this involves the main isolating switch located on the electrical cabinet/control panel. When the
machine is off, this device isolates the machine from the network, and enables electrical isolation (subject to the state
of the UPS),
Additional components :
• Software in the DMP system automatically initiates immediate equipment shutdown if certain unsafe conditions are
detected during operation.
• Ground fault interrupter and over-current circuit-breaker,
• Locking key on the control display: The machine cannot be switched on unless the key is in the ON position.
Machine Safety
DMP equipment includes following safety features:
• Detection of a drop in air pressure: Control indicates a fault if the air feed pressure drops below the required pressure,
• Detection of the laser rack water level: The chiller in the laser rack signals that the water level has dropped below the
required level,
• Detection of chamber temperature: inability to open the doors if the temperature is above +50°C (+122°F),
• Protection of the motors: The axis stop if an abnormal temperature is observed,
• Protection of blower: the blower stops if an abnormal temperature is observed,
• Opening of the airlock : 10 s delay before opening (for depressuring),
• Anti-collision system: The HMI (Human Machine Interface) and the various sensors tted on the ProX
®
DMP300 make it
possible to avoid collisions between moving system components,
• Protection of the Laser: control of the diodes Temperature and control the integrity of the ber,
• Protection of the scan head: control of the head temperature.
• Lock-out/tag out on the main power switch: when the main power switch is locked in the OFF position, the machine
cannot be switched on.
ELECTRICAL SAFETY
3D Systems recommends explosion-proof wiring for the room where the DMP is operating and where the materials are
stored.
To prevent electrical shock, DMP equipment will not operate unless all external panels are installed and all electrical safety
interlock circuits are closed.
ELECTRICAL HAZARD: Hazardous voltage exists inside the enclosures of all DMP equipment. Injury or
death from electrical shock can result if you remove external panels or try to defeat safety interlocks.
Panels should only be removed, and interlocks should only be defeated, by 3D Systems certied service
personnel.
ELECTRICAL HAZARD: Verify your facility’s electrical service ratings before connecting power to any DMP
equipment. Power must only be connected by a certied electrician.
ELECTRICAL HAZARD: Do not open the panel behind disconnect switch! Live voltage present. This should
only be opened by qualied personnel after power is disconnected from the facility’s power circuit/
breaker panel.
All DMP equipment is designed to minimize operator exposure to electrical hazards during normal operations. All exposed
electrical circuits are inside limited-access cabinets. This is to separate the operator from service and maintenance areas.
When operating any DMP equipment, keep the following electrical safety points in mind:
• Only 3D Systems certied service personnel should operate DMP equipment with access panels or service doors open.
• Heed high voltage warning signs and labels.
• Take common-sense safety precautions when operating any electrical equipment.
• After any change to the electrical wiring, make sure the equipment is properly grounded.
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