4
EN
potential; no connections are allowed like those defined as “PNP”,
“NPN”, “Open Collector”, etc., etc.
01.
Carry out the necessary connections, following the diagram in
Fig. 3
; remember that there are specific standards that must be
complied with both as regards the safety of the electrical systems
and as regards automatic gates.
02.
Check that the bar is well balanced and adjust if necessary by
means of the balancing spring.
03.
Release the boom gate with the spanner and make sure the bar
can move without any effort for the whole length of its travel.
CAUTION! - Do not install the boom gate unless all the
standards regarding the automatic gate category have been
complied with!
04.
Supply power to the unit, checking immediately that a voltage of
230 V AC reaches terminals 1-2 and a voltage of 24 V DC reaches
terminals 5-6. As soon as the unit is switched on the indicator lights
(LEDs) on the active inputs should turn on and after a moment, the
“
OK
” LED should start flashing at a regular rhythm. If none of this
happens, switch off immediately and check the connections more
carefully.
05.
Check correspondence of the two LEDs, FCA and
FCC
: when
the bar is closed only the FCC LED should turn off and when it is
open only the
FCA
should turn off. To exploit the slowing down func-
tion it is necessary that the limit switch triggers about 20° before the
actual stopping point is reached; if necessary adjust the two cams
until the limit switch triggers at the point required.
06.
Now check that the LEDs corresponding to the inputs with
NC
type contacts are on (all the safety devices are active) and that the
LEDs corresponding to inputs of the
NO
type are off (no command
present); if this does not happen check connections and effective-
ness of the various devices.
07.
Check that all the safety devices of the system are in proper
working order (emergency stop, photocells, pneumatic edges, etc.);
each time they trigger the relative
STOP
,
PHOTOCELL
and
PHO-
TOCELL 2
LEDS must turn off.
08.
Check that all function switches are off; in this way the gate is in
manual mode (hold to run). Lock the boom gate with the bar at a 45°
angle so it can move freely in both directions. Now give a brief com-
mand pulse on the OPEN input and if the bar does not move in the
opening direction proceed as follows:
1)
Switch off electrical power to the gate
2)
Unplug the “
MOTOR
” connector and replug it after it has been
turned 180°
3)
Unplug the “
LIMIT SWITCH
” connector and replug it after it has
been turned 180°
09.
Repeat the procedure described above in point
G
to see if rota-
tion direction is right.
N.B.:
When direction is reversed then all the three procedures de-
scribed above have to be carried out. In particular, if, for example, you
turn the “MOTOR” connector but not the “LIMIT SWITCH” connector
it will cause an error in the slowing down system. In such a case, the
motor is controlled, for instance, in the opening phase but the FCA
limit switch is never reached and consequently the bar reaches the
opening point with maximum force; the ammetric detecting system
then comes into play reversing direction in a new manoeuvre which
is also wrong.
10.
Temporarily adjust the
STOP_AMPERE
and
WORKING FORCE
trimmer to the maximum of the travel,
PAUSE TIME
to minimum and
SLOWING DOWN FORCE
to halfway travel.
11.
Try and carry out a complete manoeuvre until the bar reaches
the point where the limit switch triggers; the braking system should
come into play at this point and travel ought to continue for a further
3 seconds at a slower speed.
12.
Adjust trimmers
WORKING FORCE
and
SLOWING DOWN
FORCE
so that the manoeuvre is carried out at the speed and with
the force required and that the slowing down phase is such that the
bar reaches the stopping points as “gently” as possible without any
jerking; of course, a perfect adjustment of the balancing spring is
fundamental.
13.
Lastly adjust the trimmer
STOP_AMPERE
so the obstacle de-
tecting system, based on an ammetric friction system, is activated
as soon as an appropriate opposite action is applied to the bar. The
ammetric friction system comes into play in both directions.
3.2 -
Operational tests
After the connections have been checked and verified (Chapter 3.1)
the electrically controlled movement of the bar can be tested; in this
case
we suggest you work in the manual mode
with all the func-
tions deactivated (all switches OFF); in all cases, in the manual mode,
by releasing the command key the motor stops immediately. If you
use the Step-by-Step input command the first movement (after turn
-
ing on) should be an opening one.
By means of the command inputs, move the bar up to the opening
point; about 20° from the stopping point the
FCA
limit switch should
trigger, activating the “slowing down” phase which makes the bar
reach the set point at a slower speed.
Now carry out a closing phase until the closing point is reached; in
this case too, the
FCC
limit switch should trigger, activating the slow-
ing down phase 20° before movement stops. Now test triggering of
the safety devices: PHOTOCELL in opening has no effect while in the
closing phase it causes the bar to stop;
PHOTOCELL 2
has no effect
in the closing phase while in the opening phase it causes the bar to
stop. The devices connected to the
STOP
input act both in the open-
ing and in the closing phases, causing the bar to stop.
The UNI 8612 standards state that the maximum thrust of an auto
-
matic device must not exceed 150 N (~13.5 kg); this is achieved by
adjusting the ammetric friction
STOP_AMPERE
. There is a trimmer
on the card to establish the triggering threshold of this the friction;
is has to be adjusted so that it comes into action as soon as a light
pressure is applied to the bar in the direction opposite to the way it
is moving.
To overcome the initial movement phase that always needs greater
motor power, the STOP_AMPERE friction system is excluded from
the motor start up phase; to evaluate the effect of the adjustment on
the trimmer, you ought to wait until the movement has started and the
bar has reached standard speed.
Keep in mind that, always for a question of safety, if the friction comes
into play three consecutive times, movement is stopped without any
reversal.
If the automatic functioning mode is selected at the end of the open-
ing manoeuvre, there is a “pause time” after which a closing manoeu-
vre is automatically launched. Pause time is adjusted with the trim-
mer
PAUSE TIME
. Pause time is also activated in the semiautomatic
functioning mode when, in the closing phase, the triggering of a safety
device or the
STOP_AMPERE
friction, causes a reversal in the open-
ing manoeuvre.
3.3 -
Adjusting the pause time
When the automatic closing function is enabled with its dip switch
(see Chapter 3.3), following an opening manoeuvre, a timer is acti-
vated that controls the so-called “Pause Time”; when this time has
elapsed a closing manoeuvre is automatically activated. This time can
be adjusted with the PAUSE TIME trimmer from 3 to 120 seconds.
3.4 -
Available functions
The FUNCTIONS dip-switch lets you select the various possible func-
tioning modes and to enable the functions you want.
