How to connect the wiring to the terminal block
Pay attention during wiring operations.
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carefully with a knife, etc.
(1) Use crimp terminals with isolating sleeves, as shown in the following
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the cables do not loosen.
Screw with special washer
Screw with special washer
Crimp-type terminal
Wire
Crimp-type terminal
Terminal blocks
Wire
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exert any pressure on the terminal blocks.
(4) Use a suitable screw driver to tighten the terminal block screws. Do not
use a damaged screw driver otherwise screw heads may be damaged
and screws improperly tightened.
(5) Do not overtighten the terminal block screws as this might result in
breakage of the screws.
Crimp-type terminal
Sleeve
10 mm 30 mm
Couple of tightening
Vite M3 da 0,3 a 0,6 N.m (3 a 6 kgf.cm)
Vite M4 da 1,2 a 1,8 N.m (12 a 18 kgf.cm)
ATTENTION
• Faulty wiring may cause not only a malfunction but also damage to the
TERMINAL BLOCK board.
• Tighten each screw enough.
• Pull gently on the wire to check its full insertion.
• The stripping of the connection cable coating should be 10 mm. If it is
shorter, there may be a defective contact.
If it is longer, there may be a short circuit.
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tightening torques, otherwise it is possible that an abnormal overheating
is produced which could cause severe damage inside the unit.
• When connecting the power supply cable, make sure that the power
supply phase corresponds to the terminal block phase.
• To connect the power supply cable to the terminal block, it is necessary that
the current carrying conductors are taut before earthing the conductor,
otherwise the cable may slip out from its anchorage.
94
Section II :: Installation and maintenanceEN
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