Safety Instructions; Electrical Installation / Start-Up; Cable Gland With Screw Terminals - Burkert 8681 Operating Instructions Manual

Control Head Type 8681
24VDC-Design
10.4.

Safety instructions

DANGER!
Danger of explosion in explosive atmosphere (only in the event of a fault as zone 2)!
• Opening the hood or the housing in an explosive atmosphere is only allowed in a not energized state!
WARNING!
Risk of injury due to electric shock!
• Before reaching into the system (except for the Teach-In procedure in a non-explosive atmosphere) switch off
the power supply and secure it to prevent restarting!
• Observe applicable accident prevention and safety regulations for electrical equipment!
• When setting the position measuring system (Teach-In), do not contact any live components!
Risk of injury from improper installation!
• Installation may be carried out by authorized technicians only and with the appropriate tools!
Risk of injury from unintentional activation of the system and uncontrolled restart!
• Secure system against unintentional activation.
• Following installation, ensure a controlled restart.
10.5.

Electrical installation / start-up

10.5.1. Cable gland with screw terminals

Procedure:
→
Open the housing following the instructions in Chapter "8. Opening and Closing the Housing".
→
Assemble connection cables for signals and power supply as well as for the external initiator where necessary
in observance of the rules of technology.
→
Insert cables through the respective cable glands into the interior of the housing.
→
Connect the wires to the connection terminals according to the connection configuration described in "Fig. 14".
If required, secure the cable with a cable clip!
→
Close the housing following the instructions in Chapter "8. Opening and Closing the Housing".
NOTE!
Ensure IP protection!
• To ensure IP protection, the union nuts of the cable glands must be tightened in accordance with the cable
sizes or dummy plugs used (approx. 1.5 Nm).
• If no external initiator is used, the right-hand connection opening must be tightly sealed using a dummy plug
or using a cable gland (SW 19, Ø 3 - 6 mm) with a dummy plug (Ø 5 - 6 mm)!
English
39