(1)It must be possible to replace tools such as milling cutters in a safe manner. Make sure that safety devices are working correctly until the cutters stop rotating.
(2)Grippers must be designed to keep in gripping workpiece securely even though a power failure or a control failure takes place. It must be possible to release workpiece from the gripper in a manual mode.
1.11.3. Pneumatic and Hydraulic Systems(1)The special safety regulations will apply to pneumatic and hydraulic systems. .
(2)Since residual energy of pneumatic and hydraulic systems can be still remaining even after the robot stops, particular care and attention must be
paid by users. Internal pressure of equipment must be removed whenever starting the repair work for pneumatic and hydraulic systems.