Adding Or Removing Devices; Special Functions; Connection Of Other Devices - Nice Road400 Instrucciones Y Advertencias Para La Instalación Y El Uso

7.2.6 - Level two programming example (adjustable parameters)
The sequence to follow in order to change the factory settings of the parameters adjusting the "Motor Force" on the average (input on L1 and L2 levels) increasing
the "Pause Time" to 60 seconds (input on L3 and level on L3), and have been included as examples.
01. Press the button [Set] and hold it down (approx. 3 s)
02. Release the [Set] button when L1 LED starts flashing
03. Press the button [Set] and hold it down during step 4 and 5
04. Wait approx. 3 seconds until LED L3, representing the current level of the "Motor Force" will light up
05. Press the [st] button twice to move the LED which is lit to LED L2, which represents the new "Motor Force" value
06. Release the button [Set]
07. Press the [st] button twice to move the flashing LED to LED L3
08. Press the button [Set] and hold it down during step 9 and 10
09. Wait approx. 3 seconds until LED L2, representing the current level of the "Pause Time" will light up
10. Press the [st] button once to move the LED which is lit to LED L3, which represents the new"Pause Time" value
11. Release the button [Set]
12. Wait 10 seconds before leaving the programme to allow the maximum time to lapse

7.3 - Adding or removing devices

Devices can be added to or removed from the Road400 automation system at
any time. In particular, various devices types can be connected to "STOP" input
as explained in paragraphs "7.3.1 STOP Input".
7.3.1 - STOP input
STOP is the input that causes the immediate interruption of the manoeuvre
(with a short reverse run). Devices with output featuring normally open "NO"
contacts and devices with normally closed "NC" contacts, as well as devices
with 8,2KΩ constant resistance output, like sensitive edges, can be connected
to this input.
During the recognition stage the control unit recognizes the type of device con-
nected to the STOP input (see paragraph 4.3 "Recognition Length of the Leaf");
subsequently it commands a STOP whenever a change occurs in the recog-
nized status.
Multiple devices, even of different type, can be connected to the STOP input if
suitable arrangements are made.
• Any number of NO devices can be connected to each other in parallel.
• Any number of NC devices can be connected to each other in series.
• Several devices with 8.2KΩ constant resistance output can be connected "in
cascade" with a single 8.2KΩ termination resistance.
• It is possible to combine Normally Open and Normally Closed by making 2
contacts in parallel with the warning to place an 8.2KΩ resistance in series
with the Normally Closed contact (this also makes it possible to combine 3
devices: Normally Open, Normally Closed and 8.2KΩ).
If the STOP input is used to connect devices with safety functions,
only the devices with 8,2KΩ constant resistance output guarantee the
fail-safe category 3 according to EN standard 954-1.
7.3.2 - Photocells
The Road400 control unit is equipped with the "Phototest" function which
increases the reliability of the safety devices, making it possible to achieve "cat-
egory 2" in compliance with UNI EN 954-1 (edition 12/1998), in relation to the
combination of control unit and safety photocells.
Every time a manoeuvre is activated the related safety device is controlled and
only if everything is correct is the manoeuvre started.
Whereas, if the test has a negative outcome (photocell blinded by the sun, short
circuited cable etc), the fault is identified and the manoeuvre is not performed.
To add a pair of photocells, make the following connections.
TABLE 18 - Level two programming example
• Connection without "Phototest" function (fig. 21 - 22):
Power the receiver directly from the control unit services output (terminals 1 - 4).
• Connection with "Phototest" function (fig. 23 - 24):
The photocell transmitter power supply is not taken directly from the services
but through terminals 6-4 of the "Phototest" output. The maximum usable
current on the "Phototest" output is 100 mA.
Activate the synchronism as described in the photocell instructions if 2 pairs of
photocells are used that could interfere with one another.

7.4 - Special functions

7.4.1 - "Always open" Function
The "Always open" function is a control unit feature which enables the user to
control an opening manoeuvre when the "Step-by-Step" command lasts longer
than 3 seconds. This is useful for connecting a timer contact to the "Step-by-
Step" terminal in order to keep the gate open for a certain length of time, for
example. This feature is valid with any kind of "Step-by-Step" input program-
ming. Please refer to the "Step-by-Step Function" parameter in Table 15.
7.4.2 - "Move anyway" function
In the event that one of the safety devices is not functioning properly or is out of
use, it is still possible to command and move the gate in "Man present" mode.
Please refer to the Paragraph "Control with safety devices out of order" in the
enclosure "Instructions and Warnings for users of the ROAD gearmotor" for
further information.

7.5 - Connection of other devices

If the user needs to feed external devices such as a proximity reader for tran-
sponder cards or the illumination light of the key-operated selector switch, it
is possible to tap power as shown in Figure 25. The power supply voltage is
24Vcc -30% - +50% with a maximum available current of 100mA.
SET
3 s
SET
L1
SET
3 s
L3
L2
SET
L3
SET
3 s
L3
SET
10 s
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