Electronic Control; Electrical Installation; Overview Of Connections - LiftMaster Chamberlain CB1 Mode D'emploi

ELECTRONIC CONTROL

The control board should be the last item to be connected, i.e.
mounting the motors, laying the necessary cable and fitting light barriers
or contact strips. If installation is to be performed in a permanent
location, a means of disconnecting the equipment from the mains
supply with a contact clearance of at least 3 mm is needed (master
switch).
Please note: in these instructions, relay contacts are designated NC
(normal closed) or NO (normal open).
• NC contacts are closed and open
• NO contacts are open and close
Humidity and water will destroy the control board. Always make sure
that water, humidity and condensation cannot enter the control box. It
is vitally important that all openings and cable glands are sealed so
that they are watertight.

ELECTRICAL INSTALLATION

Installing the electronic control board: the motor control board is a
microprocessor-controlled electronic appliance featuring state-of-the-
art technology. It is equipped with all the connecting options and
functions needed to guarantee safe operation. The control box
incorporating the motor control board should be installed with the
cable intakes pointing downwards. It should not be continuously
exposed to direct sunlight. The electronic equipment enables the pull
and push forces to be set with great accuracy. If installed and set
correctly, the gate/door can be stopped manually. When in motion,
the gate/door can be stopped at any time by operating the remote
control, the push-button or the key-operated switch.
The gate/door wing must be fitted with a robust end stop for the
'OPEN' and 'CLOSED' positions as the gate/door drive has no
limit switches.
Current distribution: the cable leading from the drive arm must be
laid in a standard watertight distribution box. A permanently installed
cable can be laid from the distribution box to the control unit. It is
often possible to wire the drive, which is fixed beside the control unit
directly to the box. Never install distribution boxes underground.
Generally speaking, the following minimum cable cross-
sectional areas must be adhered to:
100-230Volt 1.5mm 2 or more
0-24Volt 0.5mm 2 or more
Tips: Bell wire is often problematic in practical use because it loses
too much voltage if long lengths of wire are used.
Segregate the cables in cable trunking, i.e. motor cable and light
barrier cable, especially in the case of key-operated switches and
ON switches (from the house wiring system) to prevent interference
where long lengths of cable are used.

OVERVIEW OF CONNECTIONS

Motors: connect the control unit exactly in accordance with the
overview of connections. The gate/door wing, which opens first, must
be motor 1 (M1) and when it first moves it must OPEN the gate/door.
If it closes the gate/door, swap terminal 6 with terminal 8 or, in the
case of motor 2 (M2), swap terminal 9 with terminal 11.
The capacitor supplied as standard must be installed between
cables 6 and 8 and 9 and 11 (for space reasons, the capacitor can
also be installed in a distribution box). Make sure that its terminals
are properly connected and that there is a good electrical
connection. The capacitor determines the force which the motor
subsequently develops.
709236B-GB - 05.2004
OVERVIEW OF CONNECTIONS
Description of terminal occupancy
Mains cable connection:
Terminal 1 N (blue)
Terminal 2 PE (green/yellow)
Terminal 3 L1 - 230 V (black)
Flashing lamp connection:
Terminal 4 L
L (230V)
Terminal 5
Motor connections:
First motor (M1):
Terminal 6 M1 direction of OPEN (brown/black)
(+ capacitor)
Terminal 7 N (blue)
Terminal 8 M1 direction of CLOSED (black/brown)
(+ capacitor)
Second motor (M2):
Terminal 9 M2 direction of OPEN (black/brown)
(+ capacitor)
Terminal 10 N (blue)
Terminal 11 M2 direction of CLOSED (brown/black)
(+ capacitor)
Infrared light barrier
Terminal 12 photocell (NC) active when closing
Terminal 13 COM
Terminal 14 photocell (NC) active when opening
(without light barrier - jumper between 12, 13 & 14!)
Description of terminal occupancy
EMERGENCY STOP FUNCTION
Terminal 15 COM
Terminal 16 Stop (NC) with emergency stop
switch jumper between 15 and 16
Control line connection
Terminal 17 External push-button (NO) motor 1 (ped. function)
Terminal 15 COM
Terminal 18 External push-button (NO) motors 1+2
Electric lock connection
Terminal 19 Distribution voltage 12 V AC
Terminal 20 Distribution voltage 12 V AC
Connection for additional equipment & light barrier
Terminal 21 Distribution voltage 24 V AC (500 mA max.)
Terminal 22 Distribution voltage 24 V AC
DESCRIPTION OF JUMPER
JP1: MOTOR
OPEN: (without jumper): only for single-wing gates
(only motor 1 operating).
CLOSED: (with jumper): only for double-wing gates
(motors 1 and 2 operating).
JP2: channel 2 radio receiver
If both learning channels are put together (A-side), the memory
capacity of the radio receiver doubles in size. The gate can then only
be fully opened. The "Pedestrian" function is no longer available. A-
side: (optional) receiver channel 2 is connected up to receiver
channel 1.
B-side: (standard) the two radio receiver channels work separately
from one another.
JP2
B
A