Emergency Stop (E-Stop); Door Status; Stationary Weld Table; Arc Shields - YASKAWA Motoman WorldLite-50 System Manual

3.3.2

Emergency Stop (E-STOP)

The operator station E-STOP button is connected in series with the system
Emergency Stop circuit. Pressing the E-STOP button interrupts this circuit and
stops all system operation. Brakes are applied to the robot and all servo power is
removed from the system. All door motion commands are cancelled.
NOTE: The air operated safety door may continue to move after an E-STOP occurs until cylinder air
pressure equalizes.
3.3.3

Door Status

The lower door push button opens the positioner door when pressed. This allows
the operator to open the positioner door when needed.
3.4

Stationary Weld Table

The Arc-WorldLite 50 features a weld table with a door that protects the operator
from arc radiation, weld splatter, and physical contact with the robot arm. When
the robot is finished working, the door lowers, giving the operator access to unload
and reload parts from the fixture.
Part/Fixture Rating
Temperature Operating Range
Humidity (maximum)
Door Cycle Speed
Air Pressure Requirements
Arc Shield
Welding Current Rating
.NOTE: In high humidity areas, use surface protection to prevent corrosion of the tooling plate.
3.4.1

Arc Shields

WARNING!
Although the arc curtain blocks dangerous arc radiation, never look
directly at the arc without protective yellower!
Two separate arc screens are used on the Arc-WorldLite 50. The first is the metal
arc screens on the front and sides of the weld table. These screens block arc
radiation and sparks from the welding operation. The material used to cover the
back of the robotic cell acts as the second arc screen. This material reduces the
amount of ultra-violet radiation that escapes from the robotic cell.
MOTOMAN
Table 3-1 Positioner Specifications
Conditions
.
Specifications
453.6 kg (1,000 lbs)
4-43°C (40-110˚F)
Non-condensing 10-90% relative humidity
3 - 4 seconds (approximate)
0.04 cmm at 620.5 kPa (1.5 scfm at 90 psi) typical
A single vertically actuated sheet metal screen for arc radia-
tion protection between operator and robot area.
600 amperes at 100% duty cycle
3-7
EQUIPMENT DESCRIPTION
Arc-WorldLite 50 System Manual