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Notes
10
Control unit
The control is a modern design micro controller and is purely designated and conceived for the
operation of these barriers. The control already has many integrated functions.
10.1
Functions of control unit
• Automatic closing (adjustable)
• Immediate closing after clearance of loop
• Photocell entry
• Loop entry
• Exit for signal barrier closed
• Separate OPEN – CLOSE – STOP signals
• Traffic light control red – green
• Cooling fan control (not all models)
• Diagnostic LED’s
• Plug-in socket for radio connection
• Signal relay when barrier open
• Signal relay when barrier closed
10.2
Control unit’s modes of operation
The modes of operation result from the connection of accessories and control components to the
control. The following description sums up the generally used modes of operation:
• Manual OPEN: barrier is opened via switch/push button and closes automatically after lapse of
programmed time or stays in open position until signal to close is given. An optionally connected
loop or photocell prevents barrier from closing if vehicle is standing in barrier’s way
• Manual OPEN – radio control: in addition with connected radio control unit for OPEN/CLOSE or
OPEN and CLOSE. Remote control with at least 2 channels necessary
• Automatic: in addition (without radio utilization). On one side of the barrier a loop or photocell is
located which opens the barrier and, after clearance through another loop, closes barrier again
Note: if traffic occurs in both directions at barrier, it must be taken into consideration that vehicles
driving in the opposite direction also activate the loop and the closing time is thus delayed.
Exception: 2 loops with direction recognition.
10.3
Operation via radio
• Operation of barrier via radio is possible, but the barrier must be within direct sight. Closing the
barrier via radio is not advisable. Safety devices against closing in danger zone should definitely
be used.
• For connection see Description of socket connectors -> RADIO RECEIVER
10.4
Connecting control unit
The control has been connected to main switch, motor, limit switches, fan (if installed) ex works
and has already been tested regarding correct operation and is generally pre-programmed
(standard models). If main switch is supplied with voltage and switched on the control is live wire.
