18
BLUEBUS LED
Cause
ACTION
STOP LED
Cause
ACTION
STEP-BY-STEP LED
Cause
ACTION
Off
7.7.2) Signals on the control unit
On the ROBUS350 control unit there is a set of LED’s each of which
can give special indications both during normal operation and in
case of malfunctions.
Table 22: LED’s on the control unit’s terminals
Malfunction
Make sure there is power supply; check to see if the fuses are blown; if
necessary, identify the reason for the failure and then replace the fuses with
others having the same characteristics.
On
Serious malfunction
There is a serious malfunction; try switching off the control unit for a few
seconds; if the condition persists it means there is a malfunction and the elec-
tronic board has to be replaced
One flash every second
Everything OK
Normal operation of control unit
2 Quick flashes
The status of the inputs has
changed
This is normal when there is a change in one of the inputs: OPEN, STOP, trig-
gering of photocells or the radio transmitter is used
Series of flashes separated by
a second’s pause
Miscellaneous
It corresponds to the flashing light’s signal.
See Table 21
Off
Activation of the STOP
input
Check the devices connected to the STOP input
On
Everything OK
STOP Input active
Off
Everything OK
STEP-BY-STEP input not active
On
Activation of the STEP-
BY-STEP input
This is normal if the device connected to the STEP-BY-STEP input is actually
active
25
6 flashes
1 second’s pause
6 flashes
At the starting of the manoeuvre, the devices connected to BLUEBUS do not cor-
respond to those recognized during the recognition phase. One or more devices
may be faulty; check and, if necessary, replace them; in case of modifications
repeat the recognition process (7.3.4 Recognition of Other Devices).
7.7.1) Flashing light signalling
During the manoeuvre the flashing light FLASH flashes once every second. When something is wrong the flashes are more frequent; the light
flashes twice with a second’s pause between flashes..
Table 21: FLASH flashing light signalling
Quick flashes
Cause
ACTION
1 flash
1 second’s pause
1 flash
BlueBUS error
2 flashes
1 second’s pause
2 flashes
Triggering of a photocell
At the starting of the manoeuvre, one or more photocells do not enable it;
check to see if there are any obstacles. This is normal when there is an
obstacle impeding the movement.
3 flashes
1 second’s pause
3 flashes
Activation of the “motor
force” limiting device
During the movement, the gate experienced excessive friction; identify the
cause
4 flashes
1 second’s pause
4 flashes
Activation of the STOP
input
During the movement the STOP input was activated; identify the cause
5 flashes
1 second’s pause
5 flashes
Error in the internal parame-
ters of the electronic control
unit.
Wait at least 30 seconds, then try giving a command. If nothing happens the-
re may be a serious fault and the electronic card will have to be replaced.
The maximum manoeuvre
limit/hour has been excee-
ded.
Wait for a few minutes until the manoeuvre limiting device drops to under the
maximum limit.
7 flashes
1 second’s pause
7 flashes
There is an error in the
internal electric circuits.
Disconnect all the power circuits for a few seconds and then try to give the
command again. If nothing happens there may be a serious fault and the
electronic card will have to be replaced.
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