Wiring; Grounding - YASKAWA MH50II Operating And Maintenance Manual

5

Wiring

DANGER!
Danger to life due to electric shock, risk of fire due to short circuit.
Wiring must be performed by authorized or certified personnel.
Follow the instructions given below before wiring.
 Make sure that the earthing resistance does not exceed 0.1 Ω.
 Turn OFF the main power supply.
 Put up the warning sign prescribed, e.g. "Do not turn the power on!".
 Install a switch-on guard as prescribed.
5.1
Follow the applicable electrical installation standards and wiring regulations for earthing.
The cable cross-section must be 6 mm² or more.
For information on connecting the earthing cable directly, see Fig. 5-1: "Earthing
connection".
NOTICE
Note on the earthing connection
Never use the earthing cable together with an earthing cable of, for example:
 A different electrical consumer
 A different motor-driven consumer
 Welding devices, etc.
If the earthing cable is laid in a metal duct, metal conduit or some other metal system, this
must be earthed in accordance with the applicable electrical installation standards.
M8 screw for earthing is supplied with the robot (at least 6 mm² protective earth con-
1
ductor).

Grounding

Fig. 5-1: Earthing connection
1
Wiring
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