Proface LT4300M - 5.7 Modular HMI + Control" - Manual (Page 37)

LT-4201TM/4301TM Hardware Manual
37
Use the following procedure to connect the wires to the terminal blocks:
NOTE: To remove the wire, reinsert the screwdriver into the square-shaped hole and when the
wire’s spring clamp releases, pull out the wire.
(1)
Wire should be 0.20...0.81 mm
2
(AWG 24...18), with the end twisted. Applicable wire style are
UL1015 and UL1007.
(2) Strip 7.0 mm (0.28 in) of jacket from the wire. Strip only the amount of jacket required. If too
much jacket is removed, the ends may short against each other or against the terminals, which can
create an electric short. If not enough jacket is removed, the wire may not make sufficient contact
with the terminal.
Insert each wire completely into its opening. Improper insertion can lead to a loss of unit power or
short circuit, either against the wire filaments or against the terminals, or to over heating of the wire
and terminal.
(3) Do not rotate the point of the screwdriver inside the square-shaped opening. It may damage the
equipment.
Step Action
1 Insert the screwdriver into the square-shaped hole.
This will open the wire’s round-shaped hole.
2 Hold the screwdriver and insert the wire into the wire’s round-shaped hole.
3 Take out the screwdriver from the square-shaped hole.
The round-shaped hole will then close, and the wire will be held securely in place.
WARNING
IMPROPER WIRING PRACTICES CAN MAKE EQUIPMENT INOPERABLE
 Use only the specified wire sizes for I/O channels and power supplies.
 Prepare wires and make connections as specified in this documentation.
 Do not connect more than one wire per terminal block connector.
Failure to follow these instructions can result in death, serious injury, or equipment
damage.