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Installation and connecting up
3.4 Connector
3.4.4
Grounding the Link
Ground the IE/WSN-PA Link using the ground terminal on the base of the housing. With an
unprotected installation, ground of the module of the IE/WSN-PA Link via a connection with
maximum 1 ohm resistance from the ground lug on the outside to ground.
If the module is installed in a control room, cabinet ground is adequate. You should,
however, check the regulations that apply to each installation location or to the system as a
whole. However it is installed, the module housing must be grounded to comply with the local
electrotechnical regulations that apply in the relevant country. The most effective grounding
method is a direct connection to ground with minimum resistance.
The ground connector "S" located next to the power supply terminals (see also the figure in
the section "Connecting the Link (Page 64)") is the internal ground connector screw (see
also section "Connecting the Modbus RTU (RS-485) (Page 66)").
3.4.5
Closing connectors that are not required
Close any connectors that are not required
In the base of the connection box, there are 1/2" holes for NPT cable feedthroughs that are
closed in the factory with plastic plugs.
Dummy plugs ship with the module. Use these to close any connectors you are not using.
Degree of protection IP65 can only be maintained if unused connectors are closed.
3.4.6
Connection of an external antenna
Connecting an external antenna
This section is only relevant for the IE/WSN-PA Link with a connection for an external
antenna (order number 6GK1 411-6CA40-0BA0).
An external antenna is available as an accessory, (see section "Product description
(Page 53)"). The connection to the Link is via the N-Connect female antenna adapter on the
top of the housing.
Figure 3-7
68
Connector for an external antenna
Compact Operating Instructions, 12/2012, A5E02509264-AD
IE/WSN-PA Link
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