INM 937x-FB2-Px-SS Rev 1
15
5 .2 .1
Removing a Fieldbus Barrier module (refer to Figure 5 .1)
a) Loosen the three captive fixing screws (C & D) on the module to release it.
The screws are all spring-loaded and should retract when the thread
has disengaged.
b) Slowly pull the 9377-FB-R Fieldbus Barrier module away from its connections
on the carrier until the safety retaining clip (B) stops further removal.
c) Press the clip (see bold black arrow) towards the module until the barrier is
released and can be removed completely.
5 .2 .1 .1
Fitting a Fieldbus Barrier module (refer to Figure 5 .1)
Note:
Before fitting a 9377-FB-R Fieldbus Barrier module check the connection pins
on its underside to ensure that they have not been bent or damaged in any way.
Do not use
, or attempt to repair, a barrier module that has any of its pins bent or
damaged, because this might affect its safety and will invalidate the certification.
a) Engage the locating guides (A) of the 9377-FB-R Fieldbus Barrier module into
the sockets provided on the carrier and push the module fully into place.
b) Tighten the three captive fixing screws (C & D) to a recommended torque of
0.9Nm to secure it.
5 .3 Trunk Surge Protection module
Figure 5 .2
– Trunk Surge Module connectors and retaining clips
5 .3 .1 Fitting and removal
The module has connectors that are designed to prevent an ignition-capable spark
when the module is installed or removed.
Do not use
, or attempt to repair, a module that has any of the pins on its underside
bent or damaged, because this might affect its safety and invalidate the certification.
Figure 5 .3
– Fitting and removal of Trunk Surge Module
Front clip
Rear clip
Safety
retaining clip
loop
