Proface LT4300M - 5.7 Modular HMI + Control" - Manual (Page 40)

LT System General Implementation Rules
40
Protective Earth Ground (PE) Cable Shielding
The following shows the steps when using shield cables for grounding the LT power supply,
Standard I/O, High-speed I/O, Analog I/O, Temperature Input, Communication cable so on.
NOTE: The shielding must be clamped securely to the conductive backplane to ensure a good
contact.
Exclusive Grounding
Connect the frame ground (FG) terminal on the power plug to an exclusive ground. When
supplying power to the LT unit, be sure to separate the input, output and power lines, as shown:
Step Description
1 Strip the shielding for a length of
15 mm (0.59 in.)
2 Use the metal grounding clamp(2)
to attach the cable to the
backplane plate (1) as close as
possible to the LT.