Figure 5.19 Wiring Example Of Multiple Emergency Stop Buttons; Figure 5.20 Wiring Figure Of Multiple Safety Protection Devices; Figure 5.21 Safety Door Switch Figure - Delta DRV70L Series User Manual

DRV70L/90L Series Manual
When connecting multiple Emergency Stop buttons, wire them according to Figure 5.19. Place the
Emergency Stop button so that a worker can quickly press the button to stop the robot.
Emergency Stop 1 Emergency Stop 2 Emergency Stop 3
Figure 5.19 Wiring example for multiple Emergency Stop buttons
Pins 5–8 of the safety connector are the safety protection contacts. You can install safety equipment
such as railings, safety gratings, pressure pads or laser scanners according to your application. Figure
5.20 shows the wiring for multiple safety protection devices. Refer to the safety protection construction
and installation descriptions in Section 4.2 for the installation requirements.
When using safety protection railings, connect the A contact (normal open contact) of the railing signal
to Pins5–8. When the railing is properly closed, the NO contact changes to a NC contact. When the
railing is opened and workers are about to enter the range of the robot, the NC contact changes to an
NO contact. At this time, the power from the DCV controller to the robot is disconnected to ensure that
the workers entering the robot range are safe. When using safety protection gratings, pressure pads or
laser scanners, connect the contact (normal close contact) safety device signal to Pins 5–8. When
these signals are not triggered by workers, they stay as NC contacts. When workers touch the gratings,
step on the pressure pads or enter the scanning area of the laser scanners, the NC contact changes to
an NO contact. At this time, the power from the DCV controller to the robot is disconnected to ensure
that the workers entering the robot range are safe.
Fence Interlock 1 Fence Interlock 2 Fence Interlock 3
Safety
Figure 5.20 Wiring diagram for multiple safety protection devices
Figure 5.21 shows that for safety protection, you can install safety lock switches on the railings to ensure
that the safety door closes properly.
Figure 5.21 Safety door switch installation
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