Typical Configuration Of A Unit; Limit Switch Connection - Chamberlain LiftMaster Professional CB22 Instructions & Electric Set Up

TYPICAL CONFIGURATION OF A UNIT

1. Drive with control board
The drive is located on a height-adjustable mounting plate
2. Control board (if mounted externally)
If the control board is mounted externally (external mounting box
required), the cables and feeder cables must be laid correctly
3. photocell (770E/771E) 150-200 mm (optional)
First photocell. Protects people
4. photocell (770E/771E) 700 mm (optional)
Second photocell. Protects vehicles and higher objects
5. Flashing light
Important visual information on the movement of the gate
6. Contact strip (optional)
Safeguards the gate on being touched. Contact strips can be mounted
on the gate or on the pillars. If the gate has openings exceeding
45mm, a contact strip is required on the pillar (accessory). If required,
contact strips must be mounted at a height of up to 2.5m.
7. Key-operated switch (optional)
Is mounted on the outside. The gate is opened by key or by entering a
number.
8. photocell (optional)
Safeguards the gate on opening. This photocell can be omitted if the
construction itself prevents people from being present in this area. A
contact strip can be fitted here as an alternative option.
The control board complies with the latest EU directives. On
of these directives specifies that the closing forces at the gate edge
must not exceed 400 N (40 kg) for the last 500 mm before the gate is
CLOSED. Above 500 mm, the maximum force at the gate edge must
not exceed 140 N (140 kg). If this cannot be ensured, a contact strip
must be mounted on the gate at a height of up to 2.5 m or on the
opposite pillar (EN12453).
MOTOR
Connect the motor to the control board exactly as shown on the
connection layout diagram.
Terminal 4 cable black
Terminal 5 cable blue
Terminal 6 cable brown
The cable for the capacitors supplied with the motors must be
inserted in terminals OP and CL together with the cables for the
direction of rotation. Make sure that it is connected correctly and
powered sufficiently. The capacitor is responsible for the force that
the motors have later on.
Note: If drives/motors other than ours
are connected, it might be required to swap the cables of terminals 4
+ 6 to ensure correct operation. This is shown during "Initial
operation", if the control board does not maintain the correct moving
directions. See also the Limit switch connection instructions for more
information.

LIMIT SWITCH CONNECTION

2005 design: The cable is connected to terminal CN2 using the
connector.
Other designs: There is no connector on the limit switch. On
purchasing a single control board, a connector is provided with a
short cable. Both cables are connected by means of a soldered
connection or a block terminal. Different types of limit switch
systems can be connected to the control board. The limit switch has
to have 2 contacts NC (normal closed). See the illustration for the
correct connection.
Position of the magnets on the gate for magnetic limit switch:
The magnet with the designation 1 must always be fixed on the left
side of the rack bar.
The magnet with the designation 2 must always be fixed on the right
side of the rack bar.
Note: The correct operation of the control LED should be re-
checked before initial operation.
Note: In order to have the correct direction for OPEN, check the
setting of DIP7.
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