Chapter 4: System Cable Installation
Grounding the Robot Base
You can ground the robot base by using a ground wire at the robot base (see the following fig-
ure). The robot ships with an M8 x 12 stainless steel, hex-head screw, and M8 split and flat
washers installed in the grounding hole. You must supply the ground wire.
Figure 4-15. Ground Point on Robot Base
IMPORTANT:
The earth ground conductor resistance must be ≤ 10 Ω.
Callout
Description
A
Ground point location on robot base
B
Ground lug
C
Ground label
Grounding Robot-Mounted Equipment
The Joint 3 quill and the tool flange are not grounded to protective earth. If hazardous voltages
are present at any user-supplied robot-mounted equipment or tooling, you must install a
ground connection from that equipment or tooling to the ground point on the robot base. Haz-
ardous voltages are anything over 30 VAC (42.4 VAC peak) or 60 VDC.
Additional Information
: Refer to Tool Flange Dimensions on page 149 for more
information about the tool flange grounding point.
DANGER: ELECTROCUTION HAZARD
Failing to ground robot-mounted equipment or tooling that uses hazardous
voltages could lead to injury or fatality of a person touching the end-effector
during an electrical fault.
24402-000 Rev B
eCobra 600 and 800 Robots with EtherCAT
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