EN
English – 9
Some devices are designed to emit signals which help you recognise their
operating status or any problems.
If the WLT multi-purpose lamp is connected to the FLASH output on the power
supply and set with the flashing function, during the performance of a manoeu-
vre, it emits a flashing light every second. If any problems are encountered, the
flashing emits shorter flashes, which are repeated twice, divided by a 1 second
pause. Table 10 describes the cause and solution for each type of signal.
The LEDs on the control unit also emit signals; Table 11 describes the cause
and solution for each type of signal.
WHAT TO DO IF... (troubleshooting guide)
7
7 brief flashes
1 second pause
7 brief flashes
Electrical circuits fault Wait at least 30 seconds and then try to repeat the command and if necessary cut off
the power supply; if the status remains the same, there might be a serious failure and the
electrical board may need replacing.
8 brief flashes
1 second pause
8 brief flashes
A command has already been given,
which does not allow any other com-
mands to be performed
Check the nature of the command in progress; it could for example be the command
from a clock on the “STEP-STEP” input.
9 brief flashes
1 second pause
9 brief flashes
The automation system was secured
by a “Secure the automation system”
command
Release the automation system by sending the “Release the automation system” com-
mand.
TABLE 10 - Flashing light signals (FLASH)
Flashes Problem Solution
1 brief flashing
1 second pause
1 brief flashing
Error on the Bluebus system The check of the devices connected to the Bluebus system, which is carried out at the
beginning of the manoeuvre, does not correspond to the devices stored during the
recognition phase. There might be devices which are disconnected or out of order, so
you need to check and replace them if necessary. If modifications have been made, you
will need to repeat the recognition of devices (see paragraph 4.7).
2 brief flashes
1 second pause
2 brief flashes
Photocell activation One or more photocells are not are not permitting movement or during travel they
caused the movement to be inverted; check for any obstacles.
3 brief flashes
1 second pause
3 brief flashes
Activation of the “Obstacle Detection"
by the force limiting device
During the movement, the motors encountered greater effort; verify the cause and
increase the force of the motors if necessary
4 brief flashes
1 second pause
4 brief flashes
STOP input activation At the beginning of the manoeuvre or during the movement, one of the devices connect-
ed to the STOP input was activated; verify the cause.
5 brief flashes
1 second pause
5 brief flashes
Error in the internal parameters of the
control unit
Wait at least 30 seconds and then try to repeat the command and if necessary cut off the
power supply; if the status remains the same, there might be a serious failure and the
electrical board may need replacing.
6 brief flashes
1 second pause
6 brief flashes
Maximum limit of consecutive ma noe -
u vres or manoeuvres per hour ex ce e -
ded.
Wait a few minutes in order to allow the manoeuvres limiting device to return to below
the maximum limit.
TABLE 11 - Signals from the LEDs on the control unit (fig. 23)
LED Problem Solution
BLUEBUS
Always off
Always on
1 flash per second
2 fast flashes
Series of flashes divided by a
one-second pause
Fault
Serious fault
All ok
Change in the status of the inputs
Other
Ensure the control unit is powered; check whether the fuses have blown.
In this case, check the cause of the fault and replace them with others of
the same value
There is a serious fault: try to cut off the electricity supply to the control unit
and if the status remains, then you will need to replace the electrical board
Normal operation of the control unit
If it normal if a variation in one of the input takes place (PP, STOP):
photocells activation or a command is transmitted with a transmitter
Please refer to Table 10
STOP
Always off
Always on
Activation of the devices connected to the
STOP input
All ok
Check the devices of the STOP input
STOP input activated
P.P.
Always off
Always on
All ok
Activation of the P.P. input
P.P. input deactivated
It is normal if the device connected to the P.P. input is activated
L1 - L2 Slow flashing Change in the number of devices
connected to the Bluebus or device recogni-
tion not performed
The recognition of devices must be carried out (see paragraph 4.7)
L3 - L4 Slow flashing The recognition of the positions of the
mechanical stops was not carried out
The recognition must be carried out (see paragraph 4.8).
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