Grounding Procedures; Grounding Methods - Mitsubishi RV-6S Series Instruction Manual

2.2.4 Grounding procedures

(1) Grounding methods

Controller
and
Robot arm Robot arm
personal
computer
(a) Dedicated grounding
(b) Common grounding
(Optimum)
Fig.2-4 ： Grounding methods
(2) Grounding procedures
M4×10, SW, PW
Fig.2-5 ： Connecting the grounding cable
CAUTION
Controller Controller
and
Robot arm
personal
computer
(c) Common grounding
(Normal)
(Good)
Robot arm
A
Robot grounding cable
(AWG#11 (3.5mm ) or more)
2
(Prepared by customer)
When installing the robot, be sure to allocate a sufficient maintenance space for
connecting the cables between devices and replacing a backup battery at the rear
of the robot.
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1) There are three grounding methods as shown in
Fig. 2-4, but the dedicated grounding
should be used for the robot arm and controller
when possible. (Refer to the separate " Controller
and
Setup, Basic Operation and Maintenance" for
personal
computer
details on the controller grounding.)
2) Use Class D grounding (grounding resistance
100Ω or less).
Dedicated grounding separated from the other
devices should be used.
3) Use a AWG#11(3.5mm
the grounding wire. The grounding point should be
as close to the robot arm and controller as possi -
ble, and the length of the grounding wire should
be short.
1) Prepare the grounding cable (AWG#11(3.5mm
or more) and robot side installation screw and
washer.
2) If there is rust or paint on the grounding screw
section (A), remove it with a file, etc.
3) Connect the grounding cable to the grounding
screw section.
2Unpacking to Installation
(Fig. 2-4 (a))
2
) or more stranded wire for
2
)
Installation 2-9