4.3 Emerson 1410S grounding
4.3.1 Emerson 1410S1 grounding
The Emerson Wireless 1410S1 Gateway is grounded through the DIN-rail
mounting plate on the back of the gateway. The DIN-rail should always be
grounded in accordance with national and local electrical codes. Ensure
proper contact between gateway's mounting plate and DIN-rail for
grounding.
4.3.2 Emerson 1410S2 grounding
The gateway's enclosure case should always be grounded in accordance with
national and local electrical codes using either the internal or external
grounding provisions. The most effective grounding method is a direct
connection to earth ground with minimal impedance. The ground should be
connected with a conductor larger than 11AWG. Ensure the ground screw is
securely tightened. The internal and external ground screws should be
installed with a torque of 7 in-lbs. The connection should be 1Ω or less. See
wiring diagrams in Figure 4-5 above for identifying internal and external
ground terminals.
Note
Always make sure cable is rated for ambient temperature of the end
installation.
4.4
Terminating resistors
Three DIP switches are provided to enable termination and biasing resistors
to the serial Modbus connection.
See 1410S Reference Manual for more information.
4.5
Connect to the host system
Connect the Gateway’s Ethernet 1 (Primary) or serial Modbus Output
connection to the Host System Network or Serial I/O.
Refer to 1410S Reference Manual for additional instruction on host
connections.
4.6
Best practice
Twisted shielded pair cable is generally used to wire the serial connection,
and it is standard practice to ground the shield on the serial host side leaving
the shield floating on the gateway side. Insulate the shield to avoid
grounding issues.
July 2022 Quick Start Guide
Quick Start Guide 25
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