Proface LT4300M - 5.7 Modular HMI + Control" - Manual (Page 39)

LT-4201TM/4301TM Installation Guide
39
English
Functional Ground on the DIN Rail
The DIN rail for your LT system is common with the functional ground plane and must be
mounted on a conductive backplane.
Shielded Cable Connections
Cables carrying the fast I/O, analog I/O, and Serial communication signals must be
shielded. The shielding must be securely connected to ground. The fast I/O and analog I/O
shields may be connected either to the functional ground (FE) or to the protective earth
ground (PE) of your LT.
NOTE: The functional ground of the Ethernet connection is internal.
WARNING
UNINTENDED EQUIPMENT OPERATION
When connecting DIN rails, connect the DIN rails to functional ground (FE).
Failure to follow these instructions can result in death, serious injury, or equipment
damage.
WARNING
ACCIDENTAL DISCONNECTION FROM PROTECTIVE GROUND (PE)
 Do not use the grounding bar to provide a protective earth ground (PE).
 Use the grounding bar only to provide a functional ground (FE).
Failure to follow these instructions can result in death, serious injury, or equipment
damage.
DANGER
HAZARD OF ELECTRIC SHOCK
Make sure that CANopen and Modbus cables are securely connected to the protective
earth ground (PE).
Failure to follow these instructions will result in death or serious injury.