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6.4 - STOP
For a better safety, you can fit a stop switch that will cause the
immediate gate stop when activated. This switch must have a
normally close contact that will get open in case of operation.
In case the stop switch is operated while the gate is open, the
automatic closing function will always be disabled. To close the
gate again, you will need a start command (if the start function in
pause is disabled, it will be temporarily enabled to allow the gate
release).
Connect the stop switch cables between terminal L5 (STOP) and
L6 (COM) of the control unit.
The stop switch function can be activated by means of a remote
control stored on channel 3 (see relevant instructions of MR
receiver).
The command STOP from remote is operative also if the input
STOP of the terminal board is disabled.
6.5 - PHOTOCELLS
The control unit considers two kinds of photocells, depending on
the terminal to which they are connected:
Photocell 1
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.
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WARNING: Type 1 photocells must be installed so that
they completely cover the opening area of the gate.
Photocell 2
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.
CITY2+ control unit supplies a 24Vdc 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.
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PLEASE NOTE: it is recommended that the cable ducts
used for the motor cables NOT BE USED for the cables
connecting the photocells.
• Connect power supply cables of photocells transmitter
between terminals K7 (-) and K8 (+Test) of the control unit.
• Connect power supply cables of photocells receiver between
terminals K6 (+) and K7 (-) of the control unit.
• Connect receiver output of photocells 1 between terminals
L7 (PHOTO1) and L11 (COM) of the control unit and receiver
output of photocells 2 between terminals L8 (PHOTO2) and
L11 (COM) of the control unit.
Use outputs having normally closed contact.
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WARNING:
• 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 K7 (-) and K8 (+Test) of the control
unit to carry out the operation test.
6.6 - SAFETY RIBBONS
The control unit considers two kinds of safety ribbons, depending
on the terminal to which they are connected:
Type 1 (fixed)
They are mounted on walls or on other fixed obstacles that are
approached by the gate doors during the opening phase.
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. If the STOP input is disabled, the
control restarts motion in the same direction it was travelling prior
to the intervention of the edge.
Type 2 (mobile)
They are mounted to the door ends.
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.
If the STOP input is disabled, the control restarts motion in the
same direction it was travelling prior to the intervention of the
edge.
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
L9 (EDGE1) and L11 (COM) of the control unit.
Connect type 2 safety ribbons cables between terminals
L10 (EDGE2) and L11 (COM) 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 K7 (-) and K8 (+Test)
of the control unit.
Otherwise, connect them between terminals K6 (+) and K7 (-).
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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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