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INSTRUCTION MANUAL DAAB AUTOMATIC CONTROL UNIT EP105
22
Revision 3
• Limit switches
Limit switches are used to inform the unit when the door is in the open or closed position. There are three limit switch options
to choose from: Encoders, which are electronic limit switches that detect the exact position of the door in degrees; mechanical
limit switches using cams that control microswitches; or, if the motor does not have any physical limit switches, timer control.
Encoder (electronic limit switch)
Right/left encoder position
L110=1, Motor 1 Left position
L120=2; Motor 2 Right position
L113
, Closed position
L123, Closed position
L112
, Open position
L122, Open position
L121, Position readout
L1
11, Position readout
The encoder works by detecting the position of the door, and acts as an intelligent limit switch. Using a magnetic proximity
sensor, the EP105 calculates the precise position of the door. Limits for open and closed can be configured directly in
the automatic control unit in degrees instead of physically changing limit switch cams in the drive units. It is possible to
commission one motor at a time by activating only one limit switch at a time. If L001 or L002 is set to 0, this motor will
not turn and the indicator will flash. If L001 or L002 is set to 4 (not both at the same time) and C033 is set to 5, it will be
possible for the motor to operate in hold-to-run with restrictions, and the limit switch indicators will flash quickly. L110
and L120 must be selected to be able to read the angle positions in L111 and L121. Note also that programmable inputs
and radio are disconnected in this position. For a top-mounted drive unit, the motor is configured as for a right-mounted
drive unit. See below for the side-mounted drive unit. Note that if the drive unit is installed upside down, the sides must be
swapped because the motor runs in the "wrong" direction.
• Connect the encoder according to the instructions on page 13, "Connecting an encoder".
• Specify channel L001 as 4, hold-to-run without limit switch, then specify location of motor 1 in channel L110 where 1
is left and 2 is right. Keep the factory setting for L002 at 0
• Run the motor (hold-to-run) to the closed position, then read channel L111 for motor 1 and specify the value as closed
position in channel L113 for motor 1. The value in L111 and L121 must always decrease when closing.
• Run the motor (hold-to-run) to the open position, then read channel L111 for motor 1 and specify the value as open
position in channel L112 for motor 1. The value in L111 and L121 must always increase when opening.
• If two drive units are used, L001 is set to 0 and L002 to 4, in order to be able to run motor 2 in hold-to-run without
limit switch. Then specify location of motor 2 in channel L120 where 1 is left and 2 is right.
• Run the motor (hold-to-run) to the closed position, then read channel L121 for motor 2 and specify the value as closed
position in channel L123 for motor 2.
• Run the motor (hold-to-run) to the open position, then read channel L121 for motor 2 and specify the value as open
position in channel L122 for motor 2.
• Then set both L001 and L002 to 1, encoder.
• Specify channel C033 as 0, hold-to-run with load guard inactive.
•
Check that both halves open and close to specified positions.
•
The limit switches are now configured and the motor will stop at the specified degrees. Note that some fine tuning may
be necessary depending on the type of door and if there is motor slippage.
Mechanical limit switches (microswitches)
If conventional mechanical limit switches are used, the unit is configured as follows.
• Set channel L001 to option 2 for mechanical limit switch.
• Set channel L002 to option 2 for mechanical limit switches if there are two motors.
• Adjust the limit switch cams so they match the open and closed positions of the door. The easiest way to do this is to
move the door to the end position and adjust the cam so that it activates the limit switch.
• Fine adjustment can be done using the run-on times in channels L212, L213, L222 and L223.
Time control (without limit switches)
Drive units without a limit switch can use timer control instead. With timer control, you measure the actual opening time of
the door and set the automatic control unit to operate the motors for that length of time. To configure the unit for timer
control, use the following channel settings.
• Set L001 to 3 for timer control.
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