Photocell Signals; Flashing Light Signals; Control Unit Signals - Nice Maestro300 Instructions Et Avertissements Pour L'installation Et L'utilisation

9.8.1 - Photocell signals

The photocells contain a SAFE led (Fig. 31) that allows for verifying their operating status at any time: see
Table 10.
SAFE led (Fig. 32) Status
Off The photocell is not powered or is
faulty
3 quick flashes and 1 Device not recognised by the control
second pause unit
1 very slow flash The RX receives an excellent signal
1 slow flash The RX receives a good signal
1 quick flash
The RX receives a poor signal
1 very quick flash The RX receives a bad signal
Always lit
The RX does not receive any signal

9.8.2 - Flashing light signals

The flashing light emits 1 flash per second during the maneuver; when anomalies are present, it emits fast flashes: see Tabella 11.
Flashes (quick) Status
1 flash Error on the ECSbus
1 second pause
1 flash
2 flashes Intervention of a photocell
1 second pause
2 flashes
3 flashes "Gearmotor force" limiting device
1 second pause
activated
3 flashes
4 flashes Intervention of the Stop input
1 second pause
4 flashes
5 flashes Error in the internal parameters of
1 second pause the control unit
5 flashes
6 flashes Maximum number of manoeuvres
1 second pause per hour exceeded
6 flashes
7 flashes
Error in the internal electric circuits
1 second pause
7 flashes
8 flashes
There is already a command that
1 second pause does not allow you to execute other
8 flashes commands
9 flashes
The automation is locked
1 second pause
9 flashes
10 flashes Engine selector configuration not
1 second pause allowed
10 flashes

9.8.3 - Control unit signals

On the control unit there are LEDs (Fig. 7) that emit signals both during normal operation and in case of anomalies: see Table 12.
ECS Bus led Status
Off Fault
On Serious fault
1 flash per second of
All OK
the green led
1 long flash of the Input status variation
green led
28 – English
TABLE 10
Action
Check that the voltage on the photocell terminals is around 8–12 VDC; if the volta-
ge is correct, the photocell is probably faulty
Repeat the recognition procedure on the control unit. Check that all pairs of pho-
tocells on the ECSbus have different addresses (consult the instruction manual of
the photocells)
Normal operation
Normal operation
Normal operation but check TX-RX alignment and correct cleaning of photocell
lenses
At the limit of normal operation; check TX-RX alignment and correct cleaning of
photocell lenses
Check for any obstruction between TX and RX. Check that the led on TX emits a
slow flash. Check the TX-RX alignment
TABLE 11
Action
At the beginning of the manoeuvre the devices present do not match those reco-
gnised; check and, if necessary, try running the recognition procedure (Par. 9.2.1).
One or more devices may be faulty; check and, if necessary, replace them
At the start of the manoeuvre, one or more photocells do not enable movement;
check to see if there are any obstructions.
During the movement, if the obstacle is effectively present, no action is required
During the movement, the gate experienced excessive friction; identify the cause
At the start of the manoeuvre or during the movement, the Stop input intervened;
identify the cause
Wait for at least 30 seconds and then try to give the command again; if the status
remains the same, there might be a serious fault and the printed circuit board
must be replaced.
Wait for some minutes to let the manoeuvre limiter return below the maximum
limit.
Disconnect all the power supply circuits for a few seconds, then try sending a
command again; if the status remains, there could be a serious fault on the board
or on the motor connections
Check the nature of the always present command; for example it could be the
command coming from a clock on the "open" input
Unlock the automation by supplying the control unit with an automation unlock
command
Check that the setting of the motor type selector corresponds to what indicated
in table 3
TABLE 12
Action
Verify whether there is power and whether the fuses are blown; in this case, iden-
tify the reason for the failure then replace them with others of the same type
There is a serious fault; try switching off the control unit for a few seconds; if the
condition persists, it means that there is a malfunction and the electronic circuit
board has to be replaced
Control unit works correctly
This is normal when there is a change in one of the inputs: SbS, Stop, intervention
of photocells or the radio transmitter is used
31
TX RX