INM 937x-FB2-Px-SS Rev 1
13
4 .7 Blanking Plugs .
Blanking plugs of factory-supplied Fieldbus Barriers are lightly tightened for ease of
removal. Any blanking plugs that are not removed from the fieldbus barrier must be
tightened to the required torque to meet the IP rating.
Two types of blanking plug are supplied with the Fieldbus Barrier as shown in figures 4.8
and 4.9 below and should be tightened to a torque rating as shown in the table below.
Type A
4.8Nm
Type B
12Nm
4 .8 Final Checks .
Before replacing the lids on the enclosure, check:
•
that all wire terminal connection screws have been tightened.
•
that all cable glands are tightened to provide the required IP seal in accordance with
gland installation instructions.
•
that there are no loose cable ends that could cause an open or short circuit.
•
that the protective trunk wiring cover is in place on the Trunk Terminal Assembly.
•
that no tools (e.g. screwdrivers) or loose items have been left in the enclosure.
•
that there is no damage to any cover seal, otherwise it must be replaced with one
that has the same manufacturer’s part number.
•
that if, and only if, the enclosure is the last one on the fieldbus segment, that a
9378-FT Terminator module is fitted into the socket on the TTA.
•
that the required grounding link is securely connected between the enclosure lid and
the enclosure body.
Fit the enclosure lid and tighten all of its securing screws to a recommended
torque of 2.5 Nm.
Figure 4 .8 - Type A Blanking plug
Figure 4 .9 - Type B Blanking plug
