Diagnostics - Nice NDCC4001 Instrucciones Y Advertencias Para La Instalación Y El Uso

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
Bluebus LED
Off
On
1 flash per second
2 quick flashes
Series of flashes separated
by a
STOP LED
Off
On
S.S. LED
Off
On
OPEN LED
Off
On
CLOSE LED
Off
On
ALT LED
Off
On
Opening limit switch LED
Off
On
Pre-closing limit switch
LED
Off
On
Closing limit switch LED
Off
On
SAFE LED
Off
L1 L2 L3
CLOSE
OPEN
PP
STOP
ALT
BLUEBUS
Cause
Fault
Serious fault
All OK
A status variation has taken place
Various
Cause
STOP input activation
All OK
Cause
All OK
S.S. input activation
Cause
All OK
OPEN input activation
Cause
All OK
CLOSE input activation
Cause
ALT input
All OK
Cause
Limit switch activation
Limit switch not activated
Cause
Limit switch activation
Limit switch not activated
Cause
Limit switch activation
Limit switch not activated
Cause
SAFE input activation
L4 L5 L6 L7 L8
Solution
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 specifications.
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.
Normal operation of the control unit
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.
This is the same signal as on the flashing light (See Table 11)
1 second pause
Solution
Check the devices connected to the STOP input
STOP input active
Solution
S.S. input not active
Normal if the device connected to the S.S. input is active
Solution
OPEN input not active
Normal if the device connected to the OPEN input is active
Solution
CLOSE input not active
Normal if the device connected to the CLOSE is active
Solution
Check the devices connected to the ALT input
ALT input active
Solution
Normal if the door is in the total opening position
Normal if the door is in a position other than the total opening position
Solution
Normal if the door is near the total closing position (last 5 cm)
Normal if the door is in another position
Solution
Normal if the door is in the total closing position
Normal if the door is in a position other than total
Solution
Check the devices connected to the SAFE input (motor thermal if
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