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Chapter 4 - System Installation
50 Adept Cobra s600/s800 Robot User’s Guide, Rev H
4.7 Grounding the Adept Robot System
Proper grounding is essential for safe and reliable robot operation. Follow these
recommendations to properly ground your robot system.
Ground Point on Robot Base
The user can install a ground wire at the robot base to ground the robot. See Figure 4-6 .
The robot ships with an M8 x 12 stainless steel, hex-head screw, and M8 split and flat
washers installed in the grounding hole. The user is responsible for supplying the ground
wire to connect to earth ground.
Figure 4-6. Ground Point on Robot Base
Robot-Mounted Equipment Grounding
The following parts of an Adept Cobra s600/s800 robot are not grounded to protective
earth: the Joint 3 quill and the tool flange. If hazardous voltages are present at any
user-supplied robot-mounted equipment or tooling, you must install a ground connection
from that equipment/tooling to the ground point on the robot base. Hazardous voltages
can be considered anything in excess of 30
VAC
(42.4
VAC
peak) or 60
VDC
.
See also Figure 8-4 on page 108 for the grounding point on the tool flange.
DANGER: Failing to ground robot-mounted equipment or
tooling that uses hazardous voltages could lead to injury
or death of a person touching the end-effector when an
electrical fault condition exists.
Ground Point on Robot
Base, with M8 x 12
screw and washers
installed