Stop Input; Troubleshooting - Nice Maestro300 Instructions Et Avertissements Pour L'installation Et L'utilisation

9.9.2 - Stop input

The Stop input causes the immediate stoppage and a brief inversion of the manoeuvre; both devices with normally open (NO) contacts and devices
with normally closed (NC) contacts can be connected to this input, as well as devices with 8.2 kΩ constant resistance (e.g. sensitive edges). With sui-
table arrangements, multiple devices – even of different type – (read Table 11) can be connected to the Stop input.
NO
NO In parallel (Note 2)
NC (Note 1)
8.2 kΩ In parallel
CAUTION! – If the Stop input is used to connect devices with safety functions, only the devices with 8.2 kΩ constant resistance output
guarantee Category 3 safety against faults.
Similarly to the ECSbus, the control unit recognises the type of device connected to the Stop input when the recognition procedure is carried out.
Subsequently, the system triggers a STOP when any variation occurs with respect to the recognised status.
10

TROUBLESHOOTING

Table 14 contains useful information to help solve any malfunctions that may occur during installation or in case of a fault.
Symptoms
The radio transmitter does not emit
any signal and the corresponding led
fails to light up
The manoeuvre fails to start and the
ECSbus led on the control unit does
not flash
The manoeuvre fails to start and the
automation's flashing light is off
The manoeuvre fails to start and the
automation's flashing light emits a
few flashes
The manoeuvre starts but is imme-
diately followed by a reverse run
commanded by the control unit
The manoeuvre is carried out but the
flashing light is not working
30 – English
TABLE 11
1 st -type device:
NC 8.2 kΩ
(Note 1) In parallel
In series (Note 3) In series
In series (Note 4)
Probable cause and possible solution
Check the batteries: if they are flat, replace them (consult the transmitter's instruction manual).
• Check that the power cable is correctly inserted in the
power outlet.
• Check the fuses; if they have tripped, determine the
cause of the fault and replace them with others of the
same type: see Fig. 32.
Check that the command is actually received. If the command reaches the SbS input, the relevant SbS
led lights up; if a transmitter is used, the ECSbus led must emit 2 long flashes.
• Check that the Stop input is active (in other words, that the Stop led is lit). Should this not be the case,
check the device connected to the Stop input.
• The photocells test (which the control unit performs at the start of each manoeuvre) failed: check the
photocells, by verifying their status in Table 10.
The programmed "motor force" setting is too low to move the gate. Check whether there are any obsta-
cles obstructing the gate's movement and, if necessary, select a higher force as described in Par. 9.1.1.
During the manoeuvre, check that the Flash terminal of the flashing light is powered (being intermittent,
the voltage value is irrelevant: roughly 10–30 V ); if it is powered, the problem is due to the lamp not
working (consult the flashing light's instruction manual to replace it).
Note 1: the NO and NC combination is possible by wiring the 2 contacts in parallel,
while making sure that a 8.2 kΩ resistor is connected in series with the NC contact
(therefore, it is also possible to combine 3 devices: NO, NC and 8.2 kΩ).
Note 2: multiple NO devices can be connected in parallel to each other without any
quantity limit.
Note 3: multiple NC devices can be connected in series to each other without any
quantity limit.
Note 4: only 2 devices with 8.2 kΩ constant resistance output can be connected in
parallel; if required, multiple devices must be connected in "cascade" mode with a
single 8.2 kΩ termination resistance.
TABLE 14
32