Proface LT4300M - 5.7 Modular HMI + Control" - Manual (Page 30)

30
English
Also, the screwdriver tip must be flat, as indicated, to access the narrow hole of the
terminal block:
The terminal blocks are a spring clamp type.
Procedure
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.
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.