9. Troubleshooting
Problem Symptoms / Causes Solution
9a The control unit LEDs
are turned off
Mains power shortage Check for the presence of input mains voltage – see Para-
graph 2.2 / 2.3
The fuses are damaged. Before replac-
ing them, disconnect the mains electric-
ity and verify that there are no short-cir-
cuits in the connections
Replace the fuses (see Paragraph 2.3). If the fuses get
damaged again, before replacing them disconnect all the
cables and verify the integrity of the PCB
The control unit is operating either in the
energy saving mode (see Paragraph 16.3)
or with batteries (see Paragraph 8.11), or
the operating voltage is below the mini-
mum level.
Deactivate energy saving mode, check that mains power
is available.
9b The control unit does not enter
the programming sequence
When the button for accessing a pro-
gramming sequence is pressed, all the
LEDs ash. The control unit protection
has been activated
Deactivate the protection – see Paragraph 16.1
9c The control unit completes
the programming sequence,
but does not respond to com-
mands in the standard operat-
ing mode
Problems with the safety devices, once
the programming sequence is complet-
ed,the green stop and/or photo LEDs
are off
Check that the “PHO1”, “PHO2” and “STOP” contacts are
closed.
Photo-test of safety devices failed. After
a command is pressed for a few sec-
onds,the red “error” LED turns on”
Deactivate the photo-test – see Paragraph 14.1.
9d The control unit causes the au-
tomation to start, but the latter
does not cover the full path
Obstacle detection problems. If during
the manoeuvre the control unit detects
power draw peaks, it goes into obstacle
present mode.
First of all, verify that the system’s works in the manu-
al mode. There must not be any points in which the gate
leaf tends to stop. Raise the “OBS” trimmer by turning it
clockwise (see Paragraph 3.2). If insufcient, increase the
“POWER” trimmer setting and reprogram the stroke. If the
problem occurs at the nal stage of the path, it may be
resolved by eliminating or minimising the slowdown points
(see Paragraph 5.3))
Intervention of the safety devices. Check
that the green “photo” and “stop” LEDs
remain lit throughout the entire ma-
noeuvre. If there are multiple photocell
pairs,these may signal false obstacles
Try bridging the “PHO1”, “PHO2” and “STOP” contacts
to verify whether the problem can be resolved. Otherwise,
connect the photocells with alternating receivers (see image
11C)
9e The transmitter does not func-
tion
When the programming sequence men-
tioned in Paragraph 4.1 is completed,
the red “radio” LED does not ash
Verify the transmitter’s compatibility: the code must be “Sty-
lo4K” or “Stylo2K”. If the transmitter’s LED does not light up
clearly, replace the battery
9f The transmitter has little range The transmitter’s range varies in relation
to the environmental conditions
Replace the transmitter’s battery. Should this not be suf-
cient, the control unit is congured for connecting external
antennas. See Paragraph 8.10
9g The control unit does not slow
down the gate
If the “Power” trimmer is too high, the
control unit—in the space set by default
through the gate path programming
procedure—is unable to detect the
change of speed.
Reduce the setting of the POWER trimmer (par. 3.2) and
reprogram the stroke; if this is not sufcient, program the
deceleration points (par. 5.3) and set a longer deceleration
zone.
9h
The control unit functions cor-
rectly, but does not accept wired
start and pedestrian commands
When the start or ped contacts are closed,
the green “start” LED emits brief ashes.
The command lock has been activated
Deactivate the pedestrian and start block. See paragraph
15.2.
9i The control unit does not make
the dip-switch or trimmer modi-
cations effective
Once the dip-switch or trimmer posi-
tions have been modied, the control
unit does not make the modications
effective. The control unit protection has
been activated
Deactivate the control unit lock. See Paragraph 16.1
Once the “power” trimmer, dip-switch
1-2 “motor” or dip-switch 8 “func” po-
sitions have been modied, no resulting
effects appear on the system
To make the “power” trimmer or dip-switch 1-2 “motor”
modications effective, the basic or advanced path pro-
gramming must be redone. Should this not be possible, the
control unit lock has been activated. See Paragraph 16.1
9l The accessories remain pow-
ered with the energy saving
function active
With the control unit in standby mode,
the accessories nonetheless remain
powered
Make sure to have connected the accessories properly.
See Paragraph 16.3. If the accessories remain powered
only during the opening phase, the DIP7 is put to ON