Videotec MAXIMUS MPXT - Manual (Page 31)

Instruc
tions manual - English - EN
29
6.1.19 Earth wiring connection
The positioning unit must be connected to
an equipotential earth by the threaded M5
hole on the base.
Fig. 45
The ring terminal for external bonding connection is
provided by the manufacturer.
The earthing conductor on the external of the unit
must have an actual cross section at least 4mm²
(AWG11).
This is for supplementary bonding connection
required by law. In any case, protective earthing
conductor must be applied to J1 inside connector (
6.1.5 Connection of the power supply, page 19).
6.1.20 Junction box closing
If you can’t turn by hand the threaded
cap before the OR reaches the tube this
means that there are debris\dirt on the
threads or that the cap is misaligned: in
this case there’s a serious danger of threads
damaging; unscrew the cap and check the
alignement and/or clean the threads.
Never force the rotation of threaded cap
before the OR reaches the tube of the
housing, otherwise thread damage could
occur.
If you suspect that any kind of thread
damaging has occurred, suspend the
installation: the device could be no longer
safe for the installation on a potentially
explosive atmosphere: in this case contact
Videotec technical support.
Verify that in the cap there isn’t dirt or debris.
Lubricate the threaded part of the lid, of the junction
box and the seal with technical vaseline oil lubricant.
Arrange the cables so that there is no interference
when closing the lid of the junction box.
Fig. 46
Screw by hand the threaded cap of the junction box
till the OR gasket reaches the tube.
Fig. 47
Fig. 48