5.4 - DIAGNOSTICS
Some devices are able to emit signals that serve to recognise their state of operation or possible faults. The paragraphs below describe the various signals per
device type.
5.4.1 - Signals of the control unit
The LEDs of the terminals, the connectors and the keys on the control unit emit special signals to indicate both normal operation and possible faults.
Tables 9 and 10 describe the cause and solution for each type of signal.
TABLE 9
Terminal LEDs on the
control unit
STOP
OPEN
CLOSE
PP
ALT
BLUEBUS
OPEN
PRECL
CLOSE
SAFE
ENCODER
Bluebus LED Cause Solution
Off Fault Check for presence of the power supply; check that the fuses are not
blown; in this case, identify the cause of the fault and then replace with
versions with the same specications.
On Serious fault This indicates a serious fault; try switching off the control unit for a few
seconds; if the condition persists there is a fault and the electronic board
needs to be replaced.
1 ash per second All OK Normal operation of the control unit
2 quick ashes A status variation has taken place Normal when there is a variation to one of the inputs: S.S., STOP, OPEN,
CLOSE, activation of the photocells, or when the radio transmitter is used.
Series of ashes separated
by a
Various This is the same signal as on the ashing light (See Table 11)
1 second pause
STOP LED Cause Solution
Off STOP input activation Check the devices connected to the STOP input
On All OK STOP input active
S.S. LED Cause Solution
Off All OK S.S. input not active
On S.S. input activation Normal if the device connected to the S.S. input is active
Solution
OPEN LED Cause
Off All OK OPEN input not active
On OPEN input activation Normal if the device connected to the OPEN input is active
CLOSE LED Cause Solution
Off All OK CLOSE input not active
On CLOSE input activation Normal if the device connected to the CLOSE is active
ALT LED Cause Solution
Off ALT input Check the devices connected to the ALT input
On All OK ALT input active
Opening limit switch LED Cause Solution
Off Limit switch activation Normal if the door is in the total opening position
On Limit switch not activated Normal if the door is in a position other than the total opening position
Pre-closing limit switch
LED
Cause Solution
Off Limit switch activation Normal if the door is near the total closing position (last 5 cm)
On Limit switch not activated Normal if the door is in another position
Closing limit switch LED Cause Solution
Off Limit switch activation Normal if the door is in the total closing position
On Limit switch not activated Normal if the door is in a position other than total
SAFE LED Cause Solution
Off SAFE input activation Check the devices connected to the SAFE input (motor thermal if
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