Carrier WTC-LEX-WD Bedienungsanleitung Seite 10

10. Strain relief and terminal block cover
In certain jurisdictions, terminal block covers
are required to meet local safety regulations.
Strain reliefs and terminal block covers are
available for controllers housed in large
enclosures and are used to relieve tension on
the wiring and conceal the controllers' wire
terminals. Strain reliefs and terminal block
covers are optional and are sold as
peripherals. Strain relief and terminal block
cover usage does not comply with DIN-rail
mounting.
IMPORTANT: Strain relief and terminal block
cover cannot be used with –WD models.
Prior to connecting all wires, it is
recommended to install the strain relief.
Two screws are provided for its installation.
See the bottom part of the enclosure as
presented in Figure 14 below.
Figure 14: Installing the stain relief
Figure 15: Installed stain relief
Tie wraps can then be used to group
wires together and attach them securely
to the strain relief in an effort to relieve
the undue tension.
It is recommended to use 4.6 mm wide tie
wraps with tensile strength of 220 N to
attach wires to the strain relief.
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Figure 16: Attaching wires to the strain relief
Figure 17: Attaching wires to the strain relief
(completed)
If necessary, the terminal block cover can be
clipped on to the strain relief as shown below.
Figure 18: Installing the terminal block cover
Removing the terminal block cove
To remove the terminal block cover, use a flat
screwdriver to unclip the terminal cover from
the strain relief.
IMPORTANT:
Turn off the power before any
kind of servicing.