Mitsubishi Electronics RV-6S instruction manual Grounding procedures Grounding methods

2Unpacking to Installation

2.2.4Grounding procedures

(1) Grounding methods

	Controller		Controller		Controller
Robot arm	and	Robot arm	and	Robot arm	and
	personal		personal		personal
	computer		computer		computer

(a) Dedicated grounding	(b) Common grounding	(c) Common grounding
(Optimum)	(Good)	(Normal)

Fig.2-4 ： Grounding methods

1)There are three grounding methods as shown in Fig. 2-4, but the dedicated grounding (Fig. 2-4(a)) should be used for the robot arm and controller when possible. (Refer to the separate " Controller Setup, Basic Operation and Maintenance" for 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(3.5mm2) or more stranded wire for 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.

(2) Grounding procedures

Robot arm

M4×10, SW, PW

A

Robot grounding cable (AWG#11 (3.5mm2) or more) (Prepared by customer)

Fig.2-5 ： Connecting the grounding cable

1)Prepare the grounding cable (AWG#11(3.5mm2) 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.

CAUTION 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.

Installation 2-9