10
– ENGLISH
ELECTRICAL CONNECTIONS
4
4
ELECTRICAL CONNECTIONS
4.1 PRELIMINARY CHECKS
f
All electrical connections must be made with the
system disconnected from the mains electricity and
with the back-up battery (if present) disconnected.
a
The connection operations must only be carried out
by qualified personnel.
f
Mount a device on the electric power line that com-
pletely disconnects the automation from the grid.
–
The disconnection device must have contacts with a
sufficient gap to ensure complete disconnection, under
the Category III overvoltage conditions, in accordance
with the installation instructions.
To make the electrical connections:
1.
open the gearmotor’s cover (
A
)
A
21
2.
pass the power cable and the other electrical cables
through the hole on the lower part of the gearmotor
22
3.
first connect the motor’s power cable with the control unit
PP7124
: loosen the cable clamp (
B
)
B
23
4.
connect the power cable (
C
) and lock it in place with the
cable clamp (
B
)
C
B
24
5.
use the same procedure to connect the power cable to
the motor without the control unit
PP7224
6.
connect the cables of any supplementary devices, by re-
ferring to “
Figure
” paragraph
7.
close the covers of the gearmotor.