Proface LT4300M - 5.7 Modular HMI + Control" - Manual (Page 28)

28
English
1 Multipoint grounding is permissible if connections are made to an equipotential ground
plane dimensioned to help avoid shielded cable damage in the event of power system
short circuit currents.
For more details, refer to Grounding Shielded Cables.
The wire sizes to use with the removable terminal blocks is 0.20 to 0.81 mm 2 (AWG 24 to
18).
Terminal Block
Not plugging the terminal block into rear module correctly can cause an electric shock or
unintended operation of the application and/or can damage the rear module.
NOTE: When installing the terminal blocks to the rear module, please keep the display
module unmounted.
NOTE: To help prevent a terminal block from being inserted incorrectly, clearly and
uniquely code and label each terminal block and rear module.
WARNING
IMPROPER GROUNDING CAN CAUSE UNINTENDED EQUIPMENT OPERATION
 Use cables with insulated shielded jackets for analog I/O, fast I/O and communication
signals.
 Ground shielded cables for analog I/O, fast I/O and communication signals at a single
point
1 .
 Always comply with local wiring requirements regarding grounding of cable shields.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.
DANGER
FIRE HAZARD
Use only the recommended wire sizes for I/O channels and power supplies.
Failure to follow these instructions will result in death or serious injury.
DANGER
UNINTENDED EQUIPMENT OPERATION OR ELECTRIC SHOCK
Be sure to connect the terminal blocks to their designated location.
Failure to follow these instructions will result in death or serious injury.