Safety Protection Device Construction; Railing Construction Notes; Figure8. 7 Key Safety Switch - Delta SCARA DRS40L Series User Manual

Delta SCARA Robot System User Manual SCARA CE Series

8.2 Safety protection device construction

8.2.1 Railing construction notes

The final system integrator must construct safety protection devices around the robot properly, such as
railings, pressure pads and gratings etc.
Please refer to Chapter 3 for the construction of safety protection devices.
The use of the safety switch with key attached as shown in Figure 8.7 below is recommended for the
installation of the safety lock for the railing.
Key
Actuator

Figure8. 7 Key safety switch

Workers entering the railing should have the keys with them; this can effectively prevent the door from
being close and accidentally starting the robot.
Even if the railing is closed, the safety switch will not be activated without the key to switch the safety
switch to Lock mode.
When the safety switch with the attached key is selected, please select so that the key can be removed
at any position; otherwise, there will be the risk of anyone can switch the safety mode randomly.
Please also install one or more safety switches or key switches inside the railing, and use serial
connection to connect it with the safety switch signal of the railing so that if the railing was accidentally
closed, the workers trapped inside the railing can turn off the safety switch signal and make the
controller cut the power supplied to the robot. This ensures the safety of the workers trapped inside.
Please refer to Figure 8.8 below for the installation example figure.
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