LiftMaster Chamberlain CB3 Mode D'emploi page 11

CONNECTION SUMMARY
The drive is already wired up and as a minimum requirement it is only
necessary to connect or bridge the supply terminal N, Earth, L and the
photocells COM, OP, CL (danger) (Fig. 5 + 10 - 11).
Description of terminal assignments
Cable terminal block M1 (bottom left)
N N neutral (blue)
Earth PE (green-yellow)
L1 230V (black)
Cable terminal block M2 (bottom right)
OP Motor travel direction OPEN
N Motor N (COM) neutral (blue)
CL Motor travel direction CLOSED
The capacitor is connected between terminals OP and CL. When
connecting 2 drives they are wired up in parallel. The second drive does
not possess a limit switch.
C.LP Lighting in drive, 230V/25W (black)
COM Lighting in drive and flashing light, 230V/25W
(COM blue)
Lamp External flashing light 230V/40W
Terminal block M3 (top left)
24V Supply for external devices, 24V AC max.
500mA
24V Supply for external devices, 24V AC max.
500mA
INPUTS
St1 Start input channel 1
St2 Start input channel 2
Stop COM bridged with COM in factory
Com COM bridged with Stop in factory
EDGE Contact strip bridged with 8.2K Ohm in factory
EDGE Contact strip bridged with 8.2K Ohm in factory
Terminal block M4 (top right)
Photocells
Op Photocells active, OPEN door (+ pole)
COM Photocells (common or [- pole])
CL Photocell active, CLOSE door (+ pole)
Ant Antenna (with shorter cable in factory)
Antenna earth (external cable 75 Ohm)
CN1 slot, start button for channel CH1 (top left)
1 Input
2 COM
CN2 slot, limit switch (top middle)
1 OPEN for end position door OPEN
2 COM
3 CLOSE for end position door CLOSED
CN3 slot, RPM sensor (top middle)
1 OPEN für Endlage Tor AUF
2 COM
3 CLOSE für Endlage Tor ZU
CN4 slot, E lock (top middle)
1 Switch input
2 E lock output
3 COM
Potentiometer (middle right)
Exact function: See potentiometer description
OPEN Force setting during opening
CLOSE Force setting during closing
RPM-Sensor Sensitivity of RPM sensor
DIP switch (middle)
Exact function: See DIP switch description
SW1 1-4 lower middle
SW2 1-4 upper middle
709309-GB
INFRARED SENSORS (OPTIONAL)
Factory setting: Contacts CL-COM-OP are NOT bridged for safety
reasons. The controller only functions without a terminal bridge between
CL-COM-OP in the dead man function.
The photocell is fitted to safeguard the door and must be used. The
mounting location depends upon the design of the door. Normally the
photocell is mounted at approx. knee height, 35cm. above the ground.
The photocell consists of a transmitter and a receiver part, which must
be located directly opposite one another. The photocell housing (plastic)
can be opened with a screwdriver. The photocell is attached to the wall
by means of small screws and wall plugs. The minimum requirement is
one single photocell, but we recommend the use of a second photocell
with additional fusing as necessary.
There is the option of connecting the photocells as follows: Active in
"OPEN" (terminal 20) or active in "CLOSING" (terminal 18). The
instructions describe the connection of one single photocell which
thereby uses both safety inputs, i.e. active in both directions (Fig. 6-9).
It is possible to operate 2 different photocell systems. Photocells are
connected to the "photocells" terminal. The Chamberlain failsafe system
(2 cable system) or a relay photocell system with NC relay (optional) can
be used. If the optional function "close door automatically" is used the
Chamberlain failsafe system must be installed.
A combination of different types of photocell is not possible.
After every power failure or new connection the controller checks which
photocells are connected and then operates accordingly.
The Chamberlain failsafe system (2 cable system) has a small LED
visible from outside at both sides in order to display the status of the
photocells. Two models of the Chamberlain failsafe photocells are
offered. One variant is ideally suitable for mounting on walls which are
opposite one another. The other is ideal for mounting on the inside of
the door because the mounting fittings already exist.
Diagnostics for Chamberlain failsafe photocells:
Light constant = OK
Light flashing = Photocell blocks controller
Light off = No power, false connection or false polarity
Cable cross-section: 0.5 mm
2
Voltage: 12/24 Volt AC/DC
Do not use rigid copper wires. Do not lay 230 Volt cables in parallel or in
the same channel.
SAFETY EDGE (OPTIONAL)
A contact strip, which operates according to the 8.2 kOhm function, can
be connected to the controller, i.e. an 8.2 kOhm test resistance is fixed
at the end of the contact strip. This ensures constant checking of the
power circuit. The controller is supplied with a built-in 8.2 kOhm resistor
(Fig. 12).
The contact strip must be fitted around the inside of swing-out doors.
For this purpose diverter pieces can be obtained for the rubber profile.
Only one contact strip has to be fitted.
Cable cross-section: 0.5 mm 2
Voltage: 12/24 Volt AC/DC
Do not use rigid copper wires. Do not lay 230 Volt cables in parallel or in
the same channel.
DOOR HANDLE QUICK RELEASE (OPTIONAL)
If a personnel door is installed within the garage door it must be
specially safeguarded so that the drive will only operate if this door has
been properly closed. The connection is made via the emergency stop
contact.
Cable cross-section: 0.5 mm 2
Voltage: 12/24 Volt AC/DC
Do not use rigid copper wires. Do not lay 230 Volt cables in parallel or in
the same channel.
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