Technical Features - Next Systems CTR50 Manuel D'emploi

F1 – Services fuse (1A - Slow)
It protects the electronic unit in case of short circuits or overcurrents on photo-cells or any other accessory devices connected to the card.

11) Technical features

Power supply
The electric power is supplied to the electronic card and the motors by means of an electric transformer fitted with a protection fuse. The appliance
may be connected to an optional backup battery (12Vdc or 24Vdc / 7 Ah) for the automation system to work in case of absence of Mains power
supply.
Radioreceiver
The electronic unit contains a two-channel radio receiver allowing remote control of the gate by means of the radio transmitter. The radio receiver
channel 1 acts as Start control and channel 2 acts as Pedestrian start. The radio receiver operates with a self-learning logic and can store up to 50
different codes from the remote controls. Each code may be addressed on the desired channel (start or pedestrian start). The memory contents is
preserved in absence of power supply. The memory contents may be erased (total cancellation). In alternative the electronic unit is pre-set for the
optional connection of an accessory radio receiver card (J6 connector). The channel 1 of the radio receiver card ends with a non-polarized electric
contact (relay) directly connected to the start input. The channel 2 of the radio receiver card ends with a non-polarized electric contact (relay) directly
connected to the 2nd radio channel output.
Work time
The motors' work time is controlled by two independent digital timers. If any command interrupts the wing's travel before its end, the Timer stops and
the elapsed time is stored in memory. Therefore the unit can determine, with a fair approximation, the partial working time necessary to the wing to
end its travel. For the automation system to work properly the work time value to be set (see page 33) must be slightly (approx. 5 sec.) above the
wing's actual work time. In this way the motor will stop even if the LIMIT SWITCH control has not operated. We recommend to adjust the work time so
that the wing starts to slow down at min. 50 cm. from the end of its travel. The stop of the wing depends by the current consumed by the motor
(Torque). During the normal speed phase, when the motor's current reaches the self-learned value, the gate stops (both wings) in opening and then it
reverses its motion for approx. 2 sec., while during the closure phase , the gate stops and reverses its motion after approx. 1,5 sec. After the electric
power is supplied to the electronic card (at installation), or after one absence of power supply, when the Start push-button is pressed for the first time
the gate performs an opening cycle.
Warning : In case of absence of power supply the position of the shutters will be lost (Timers reset).
Kickback / extra-push
This procedure can be enabled or excluded. It is usually employed to help the electric lock insertion and release during bad weather conditions (wind,
ice, etc.). The "kickback" procedure consists of a logic sequence operating the electric lock during a short closure phase (approx 1 sec.) with the gate
closed. The electric lock is released only after the wing has started its opening motion. The "extra-push" procedure is enabled only during the closing
slow-down phase near at the end of the wings' travel. It consists of a short acceleration of both wings (approx. 1 sec.) to help the electric lock's
insertion.
M1 delay at opening
The unit causes a fixed delay of approx. 2 seconds between the first wing's (M2) and the second wing's (M1) start during the gate's opening phase.
This delay is imposed irrespective of the position from which the gate starts to open. This delay may be cancelled by setting the dip switch 5 =ON.
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ENGLISH