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12-4
Chapter 12 HXYLX
●Protective bonding
WARNING
Always ground the robot and controller unit to prevent electrical shock.
A grounding terminal (M4 screw) is provided inside the cable box, so always
ground the unit. The position of the grounding terminal is shown below.
Cable box
Cable carrier Robot cable Ground terminal
!
CAUTION
• A secure ground connection (less than 100-ohm resistance to ground) is rec-
ommended.
• Use electrical wire thicker than AWG14 (2mm
2
) as the ground wire.
WARNING
Always turn off the power to the controller before making the ground con-
nection.
Provide a terminal marked “PE” as the protective conductor for the entire sys-
tem, and connect it to an external protective conductor. Also securely connect
the ground terminal on the robot frame to the protective conductor.
(Symbol 417-IEC5019)