In case of a fault: Hazardous voltage while protective earth conductor is NOT
connected!
Risk of electric shock.
→
Connect all protective earth conductors.
→
Connect PE connection to external protective earth conductor of connecting
cables.
→
Start running the device only after having connected the protective earth con-
ductor.
7. Tighten PE conductors firmly to PE connection using ring lugs (flexible cables)
or loops (solid cables).
Figure 22: Protective earthing
[1] Socket carrier
[2] Screw
[3] Washer
[4] Lock washer
[5] Protective earth with ring lugs/loops
[6]
Protective earthing, symbol:
8. For shielded cables: Link the cable shield end via the cable gland to the housing
(earthing).
25
SQV 05.2 – SQV 14.2 / SQRV 05.2 – SQRV 14.2 Control unit: electronic (MWG)
ACV 01.2 Non-Intrusive Profibus DP Electrical connection
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