6
WHAT TO DO IF...
(troubleshooting guide)
Some devices are able to emit signals that serve to recognise their state of
operation or possible faults .
If a flashing light is connected to the FLASH output on the control unit, it will
Flashes
1 short flash
1 second pause
1 short flash
2 short flashes
1 second pause
2 short flashes
3 short flashes
1 second pause
3 short flashes
4 short flashes
1 second pause
4 short flashes
5 short flashes
1 second pause
5 short flashes
6 short flashes
1 second pause
6 short flashes
7 short flashes
1 second pause
7 short flashes
8 short flashes
1 second pause
8 short flashes
9 short flashes
1 second pause
9 short flashes
10 short flashes
1 second pause
10 short flashes
LED
BLUEBUS
Always off
Always on
1 flash per second
2 quick flashes
Series of flashes separated by
one second pause
STOP
Always off
Always on
S.S.
Always off
Always on
OPEN
Always off
Always on
CLOSE
Always off
Always on
L1 - L2
Slow flashing
L3 - L4
Slow flashing
8 – English
TABLE 10 - Flashing light signals (FLASH)
Problem
Bluebus system error
Photocell activated
Function activation
"Obstacle detection" by force limiter
STOP input activation
Error on internal parameters in
control unit
Maximum limit of consecutive
manoeuvres or manoeuvres per hour
exceeded .
Electric circuits fault
A command is already present
that disables execution of other
commands
The automation has been blocked by
a "Block automation" command
"Obstacle detection" by encoder
function activated
TABLE 11 - Signals given by LEDs on control unit (fig. 7)
Problem
Fault
Serious fault
Everything normal
Input status variation
Various
Activation of the devices connected
to the STOP input
Everything normal
Everything normal
S .S . input activation
Everything normal
OPEN input activation
Everything normal
CLOSE input activation
Change in number of devices
connected to Bluebus or device
self-learning not performed
Change in self-learning of the motor
types or the positions of the mechani-
cal stops
flash at intervals of 1 second during a manoeuvre . If faults occur, the flash-
ing light will emit a sequence of two shorter flashes separated by a 1 second
pause . Table 10 shows the cause and solution for each type of signal .
The LEDs on the control unit also emit signals .
Table 11 shows the cause and solution for each type of signal .
It is possible to verify faults that have occurred during the last 8 manoeuvres .
See Table 12 .
Solution
At the start of the manoeuvre, the devices connected to Bluebus do not
correspond to those recognized during the self-learning phase . One or
more devices may be disconnected or faulty; check and, if necessary,
replace them . In case of modifications repeat the device self-learning pro-
cess (see paragraph 3 .4) .
One or more photocells do not enable movement or have caused a move-
ment inversion during travel; check to see if there are any obstructions .
During the movement, the motors encountered excessive resistan-
ce; identify the cause and if necessary increase the level of force of the
motors .
At the start of the manoeuvre or during the movement, the STOP input
was activated; identify the cause .
Wait at least 30 seconds, then try giving a command and if necessary turn
off the power supply . If the condition persists, there may be a malfunction
and the electronic board must be replaced .
Wait a few minutes until the manoeuvre limiting device falls to below the
maximum limit .
Wait at least 30 seconds, then try sending a command and if necessary
turn off the power supply . If the condition persists, there may be a mal-
function and the electronic board must be replaced .
Check the type of command that is always present; for example, it could
be a command from a timer on the "open" input .
Release the automation by giving the "Automation release" command .
During the movement, the motors have been blocked by higher friction;
identify the cause .
Solution
Check that the control unit is powered . Check that the fuses have not
blown: if they have, check the cause of the fault and replace with others
with the same value
A serious fault has occurred: try disconnecting electrical power from the
control unit . If the problem persists it will be necessary to replace the
electronic board
Control unit works correctly
Normal if one of the inputs (PP, STOP, OPEN, CLOSE) changes: photo-
cells activated or a command given via a transmitter
Refer to Table 10
Check the devices connected to the STOP input
STOP input active
S .S . input not active
Normal if the device connected to the S .S . input is active
OPEN input not active
Normal if the device connected to the OPEN input is active
CLOSE input not active
Normal if the device connected to the CLOSE input is active
The device self-learning process must be performed
(see paragraph 3 .5)
Self-learning of the mechanical stop positions has not been performed