Nice MC824H User Manual

6 – ENGLISH
ELECTRICAL CONNECTIONS
4
4 ELECTRICAL CONNECTIONS
4.1 PRELIMINARY CHECKS
The electrical connection of the various devices present on
the automation (photocells, digital keypads, transponder card
readers, etc.) to the control unit must be made through the Nice
“Bluebus” system. For the other connections, refer to that spec-
ied below.
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 qualied 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
sufcient gap to ensure complete disconnection, under
the Category III overvoltage conditions, in accordance
with the installation instructions. If necessary, this de-
vice guarantees quick and safe disconnection from the
mains power and therefore must be positioned in sight
of the automation. If located in a concealed position,
it must be equipped with a system that prevents inad-
vertent or unauthorised reconnection of power, to avoid
potential hazards.
4.2 WIRING DIAGRAM AND DESCRIPTION OF CONNECTIONS
4.2.1 Wiring diagram
M1
M2
TX
NO
NONO NO
NO
NC
8K2
FLASH
RX
EL
24V 4W
OGI
Bluebus Bluebus
CloseOpenSbSStop
OGI
ENC ENC
ELS
Flash
Bluebus
M M
1 2 3 4 5 6 7 8 9 10 11 12
M M
Nice S.p.A. Via Callalta, 1 31046 Oderzo TV Italy
7
4.2.2 Description of connections
The meaning of the codes/wording stamped on the electronic board near the relative terminals is described below.
Table 2
ELECTRICAL CONNECTIONS
Terminals Function Description Cable type
Motor 1
Connection of motor M1 [note 1]
3 x 1.5 mm
2
Motor 2 Connection of motor M2 3 x 1.5 mm
2

Nice MC824H Specifications

General

Brand	Nice
Model	MC824H
Category	Control Unit
Language	English