nologo START-S7LT, Manual And Operating Manual For The Installer

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START-S7lT
operating guide
-5-
3.2 Type of electrical wires
depending on the installation, the type and number of devices installed, the number of cables needed can vary.
The table below shows the cables needed for a typical installation. The cables used in the installation must be
IeC 60335 compliant.
 Motor cable (if not equipped) Cable 2 x 2 mm
2
 Flashing signal Cable 2x1,5 mm
2
 Antena Shielded cable type RG58

Key selector Cable 3x0,5 o 0,75 mm
2
 Photocell receiver Cable 4x0,5 o 0,75 mm
2
 Photocell transmitter Cable 2x0,5 o 0,75 mm
2
3.3 Notes on connections
To guarantee operator safety and to prevent damaging the components, never make connections or insert
wireless receiver boards while the control unit is powered. Power the control unit through a 3 x 1.5 mm cable. If
the distance between the control unit and the ground systemconnection is more than 30 m, a ground plate must
be installed in proximity to the control unit.
• If the motors do not have a cable, use the 4 x 1.5 mm cable (open + close + ground).
• In connecting the part with an extremely low safety voltage,
use cables with a minimum section of 0.5 or 0.75 mm
2
.
• Use shielded cables if the length exceeds 30m
and connecting the ground braid only from the side of the control unit.
• Do not connect the cables in underground cases even if they are water-tight.
• If they are not used, the inputs to the Normally Closed (NC) contacts must be jumpered to the common”.
• If the same input has more than one contact (NC), they are placed in series.
• If they are not used, the inputs to the Normally Open (NO) contacts are left loose.
• If the same input has more than one contact (NO), they are to be placed in series.
• The contacts must be mechanical and free of any potential.
Making the correct choice of installation is essential to ensuring adequate safety and good protection against
atmospheric agents. Remember that the control unit contains powered parts and electronic components which
by their very nature are sensitive to infi ltrations and moisture. The control unit is supplied in a container which
guarantees an IP55 protection rating if adequately installed. Install the control unit on a permanent surface that
is perfectly flat, adequately protected against impacts and at least 40 cm off the ground. The cables must enter
the control unit from the bottom only; we recommend using wire leads and water-tight connections. when using
tubing that could fi ll up with water or if the tubing comes from an underground well, the wires must enter a fi
rst shunting box placed at the same height as the control unit and then, from there, the wires must be passed
into the container holding the control unit, again entering from the bottom. This prevents any evaporation of the
water in the tubing from forming condensation inside the control unit itself.
3.1 Preliminary checks
3 Premises