Disconnection From The Mains With Kt/Km Electrical Connection - AUMA SQEx 05.2 Operating Instructions Manual

Servicing and maintenance
13.2.1.

Disconnection from the mains with KT/KM electrical connection

Removing the plug:
Fitting the plug/socket
connector:
86
SQEx 05.2 SQEx 14.2/SQREx 05.2
Figure 90: KT/KM electrical connection
[1] Cover
[2] Screws for cover
[3] O-ring
[4] Screws (with gaskets) within connection frame
[5] Connection frame
[6] Grub screws within connection frame
Ignition of potentially explosive atmospheres caused by sparks!
Risk of death or serious injury!
Before opening the flameproof enclosure, ensure absence of gas and voltage.
Handle cover and housing parts with care.
Flameproof joints must neither be damaged nor soiled in any way.
Do not jam cover during fitting.
1. Loosen the screws [2].
2. Remove cover [1].
3. For versions with terminal compartment in type of protection Ex d (flameproof
enclosure): Remove grub screws [6] inside the connection frame.
4. Loosen screws [4] inside the connection frame.
5. Remove electrical connection.
6. Clean sealing faces of plug/socket connector, cover and housing.
7. Preserve joint surfaces with an acid-free corrosion protection agent.
8. Check whether O-rings [3] are in good condition, replace if damaged.
9. Apply a thin film of non-acidic grease (e.g. petroleum jelly) to the O-rings and
insert them correctly.
10. Fit electrical connection (connection frame) and fasten screws [4] (with gaskets)
evenly crosswise.
11. For versions with terminal compartment in type of protection Ex d (flameproof
enclosure): Fasten grub screws [6] (tightening torque approx. 10 Nm).
Information: The flameproof enclosure is only guaranteed provided the grub
screws are fastened [6].
SQREx 14.2 Control unit: electronic (MWG)
ACExC 01.2 Non-Intrusive Profibus DP