Disconnection From The Mains With Kp/Kph And Kes Electrical Connection; Maintenance - AUMA SQEx 05.2 Operating Instructions Manual

SQEx 05.2 SQEx 14.2/SQREx 05.2
ACExC 01.2 Non-Intrusive Profibus DP
13.2.2.

Disconnection from the mains with KP/KPH and KES electrical connection

Removing the plug:
Fitting the plug/socket
connector:
13.3.

Maintenance

Maintenance intervals
Manual operation
SQREx 14.2 Control unit: electronic (MWG)
12. Fit cover [1] and fasten screws [2] evenly crosswise.
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.
Figure 91: KP/KPH and KES electrical connection
[1] Cover
[2] Screws for housing
[3] O-ring
[4] Plug-in frame (KP/KPH)
[5] Connection frame (KES)
1. Loosen the screws [2].
2. Remove electrical connection.
Cover [1] and plug-in type frame [4] or connection frame [5] remain together.
3. Seal open plug/socket connection, e.g. using AUMA protection cover and
parking frame.
4. Clean sealing faces of plug/socket connector and housing.
5. Preserve joint surfaces with an acid-free corrosion protection agent.
6. Check whether O-ring [3] is in good condition, replace if damaged.
7. Apply a thin film of non-acidic grease (e.g. petroleum jelly) to the O-ring and
insert it correctly.
8. Replace electrical connection and fasten screws evenly crosswise.
In compliance with EN 60079-17, Ex certified products either require repeated testing
at an interval of 3 years or continuous monitoring by trained personnel.
During maintenance, the mechanical parts of the handwheel activation, in particular
motor coupling and retaining spring, must be checked. Replace the parts in case of
visible wear.
Servicing and maintenance
87