Nice NDCC4001 Instrucciones Y Advertencias Para La Instalación Y El Uso página 23

Quick flash There is an error in the reading of the encoder probably due to a disturbance. Check whether the wiring between the control unit and
the encoder is correctly connected.
LED 6 Description
Off During normal operation, it indicates "Pre-flash" not active.
On During normal operation, it indicates "Pre-flash" active.
Flashes Programming of functions in progress.
Quick flash There is an error linked to the encoder direction. Modify the setting of the parameter "Inverted rotation direction".
LED 7 Description
Off During normal operation, it indicates that the operation for inverter is not activated.
On During normal operation, it indicates that the operation for inverter is activated.
Flashes Programming of functions in progress.
Quick flash "Inverter" generic error. To check the type of error, see the diagnostics of the encoder/Inverter LED described in table 9.
LED 8 Description
Off During normal operation, it indicates that the motor Rotation Direction is standard.
On During normal operation, it indicates that the motor Rotation Direction is inverted.
Flashes Programming of functions in progress.
Quick flash Unused.
5.4.2 - Flashing light signals
If a flashing light is connected to the FLASH output on the control unit (or the LED flashing light programmed as flashing light), during the performance of a
manoeuvre this emits a flash each second. If faults occur, the flashing light will emit signals; these are repeated twice, separated by a 1 second pause. The same
signals are also emitted by the LED flashing light and the "Bluebus" LED. Table 11 shows the cause and solution for each type of signal.
Signal
1 flash
1 second pause
1 flash
2 flash
1 second pause
2 flash
3 flash
1 second pause
3 flash
4 flash
1 second pause
4 flash
5 flash
1 second pause
5 flash
6 flash
1 second pause
6 flash
7 flash
1 second pause
7 flash
8 flash
1 second pause
8 flash
9 flash
1 second pause
9 flash
Cause
Bluebus system error
Photocell activated
Unused
STOP or ALT input activation
Error on internal parameters in control unit
Unused
Error in internal electric circuits
A command is already present that disables
execution of other commands
Block automation
TABLE 11
Solution
At the start of the manoeuvre, the devices connected to Bluebus do not
correspond to those memorised during the learning phase. One or more
devices may be faulty; check and, if necessary, replace them.
In case of modifications repeat the device learning process (see para-
graph 3.12).
At the start of the manoeuvre, one or more photocells do not enable it;
check to see if there are any obstacles or if the photocell interfere with
the infrared.
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At the start of the manoeuvre or during the movement, the STOP or ALT
input was activated; identify the cause.
Switch off the power and turn it on again. If the error continues carry
out the "Total deletion of the memory" as described in paragraph 5.3.1
and redo the installation; if the condition persists, there may be a serious
malfunction and the electronic board must be replaced.
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Disconnect all power circuits for a few seconds and then retry a com-
mand; if the condition persists this may indicate a serious fault with the
board or motor wiring. Check and make replacements as necessary.
Check the type of command that is always present; for example, it could
be a command from a timer on the "open" input.
Send the command "Release automation" or control the manoeuvre with
"High Priority Step Step".
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