Photocells; Safety Ribbons - V2 FORTECO 2500-I Manual Del Usuario

4.4 - PHOTOCELLS

The control unit considers two kinds of photocells, depending on
the terminal to which they are connected:
• Photocell 1: that is to say, photocells installed on the gate
inner side, which are active both during the opening and the
closing phase. When photocells 1 operate, the control unit
stops the gate; as soon as the photocell beam is free, the
control unit will open the gate completely.
WARNING: Type 1 photocells must be installed so
that they completely cover the opening area of the gate.
• Photocell 2: that is to say, photocells installed on the external
gate side and which are active during the closing phase only.
When photocells 2 operate, the control unit opens the gate
immediately, without waiting for release.
PD20 control unit supplies a 24VAC power supply to photocells
and it can perform a photocell operation test before starting the
gate opening phase. Photocell power terminals are protected by
an electronic fuse that stops current in case of overload.
• Connect power supply cables of photocells transmitter
between terminals M11 and M12 of the control unit.
• Connect power supply cables of photocells receiver between
terminals M10 and M11 of the control unit.
• Connect receiver output of photocells 1 between terminals
M5 and M9 of the control unit and receiver output of
photocells 2 between terminals M6 and M9 of the control
unit.
Use outputs having normally closed contact.
ATTENZIONE:
• If several couples of same kind photocells are mounted,
their outputs must be connected in series.
• In case of reflection photocells, power supply must be
connected to terminals M11 and M12 of the control unit to
carry out the operation test.

4.5 - SAFETY RIBBONS

The control unit considers two kinds of safety ribbons,
depending on the terminal to which they are connected:
• Type 1 : when type 1 safety ribbons operate during
the gate opening phase, the control unit will close the doors
for 3 seconds, then it stands still; when type 1 safety ribbons
operate during the gate closing phase, the control unit will
stand still immediately. The direction of the gate at next
command of START or PEDESTRIAN START depends upon the
parameter STOP (it inverts or continues the motion).
If the input STOP is disabled, the command makes the motion
continue in the same direction.
• Type 2 : when type 2 safety ribbons operate during the gate
opening phase, the control unit will stand still immediately;
when type 2 safety ribbons operate during the gate closing,
the control unit will open the doors for 3 seconds, then it will
stand still. The direction of the gate at next command of
START or PEDESTRIAN START depends upon the parameter
STOP (it inverts or continues the motion). If the input STOP
is disabled, the command makes the motion continue in the
same direction.
Both the input can manage the classic safety edge with n.c.
contact and the conductive rubber safety edge with 8,2 kohm
nominal resistance.
Connect type 1 safety ribbons cables between terminals M7 and
M9 of the control unit.
Connect type 2 safety ribbons cables between terminals M8
and M9 of the control unit.
In order to meet the requirements of the EN12978 rules, it is
necessary to install safety edges controlled by a control unit
continuously checking the proper working. If using control units
suited to the test by power outage, connect the power supply
cables of the control unit between terminals M11 and M12 of
the control unit.
Otherwise, connect them between terminals M10 and M11.
WARNING:
• Make use of safety ribbons having outputs with normally
close contact.
• Outputs of same kind safety ribbons must be connected in
series.
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