Nice MC824H User Manual

ENGLISH – 17
TROUBLESHOOTING...
(troubleshooting guide)
7
7 TROUBLESHOOTING GUIDE
Some devices are congured for signalling the operating status or the presence of any anomalies.
7.1 SIGNALLING THROUGH WARNING LIGHT
If a warning light is connected to the FLASH output (A) on the
control unit, the light will ash once every 1 second while the
manoeuvre is being performed.
If any anomalies occur, the warning light will emit shorter ashes
which are repeated twice with a 1-second pause in between.
“Table 9” describes the cause and possible solution for each
type of anomaly signalled by the warning light.
OGI
5
ELS
Flash
A
M M
20
Table 9
SIGNALS OF THE WARNING LIGHT CONNECTED TO THE FLASH OUTPUT (“FIGURE 20”)
Flashes Anomaly Possible solution
1 short red ash
1-second pause
1 short red ash
BlueBus system error
The check to verify the devices connected to the BlueBus system, run at
the start of the manoeuvre, does not reveal the same devices memorised
during learning phase. There may be some disconnected or faulty devices:
check these and replace them if necessary. Some changes were made:
the device learning procedure must be rerun.
2 short red ashes
1-second pause
2 short red ashes
Intervention of a photocell
One or more photocells do not consent to the movement or have caused
the latter to reverse. Check for any obstacles.
3 short red ashes
1-second pause
3 short red ashes
Intervention of the
“Obstacle Detection”
function through the force
limiter
During the gate’s movement, the motors encountered more resistance.
Verify the cause and increase the motor force if necessary.
4 short red ashes
1-second pause
4 short red ashes
Intervention of the STOP
input
At the start of the manoeuvre or during the movement itself, the devices
connected to the STOP input intervened. Identify the cause.
5 short red ashes
1-second pause
5 short red ashes
Error in the internal
parameters of the control
unit
Wait at least 30 seconds then try giving a command and disconnect the
power supply if necessary. If the condition persists, there may be a serious
malfunction and the electronic board needs to be replaced.
6 short red ashes
1-second pause
6 short red ashes
The maximum limit for
consecutive manoeuvres or
manoeuvres per hour has
been exceeded
Wait for a few minutes until the manoeuvre limiting device drops to under
the maximum limit.
7 short red ashes
1-second pause
7 short red ashes
Electric circuit anomaly
Wait at least 30 seconds then try giving a command and disconnect the
power supply if necessary. If the condition persists, there may be a serious
malfunction and the electronic board needs to be replaced.
8 short red ashes
1-second pause
8 short red ashes
A command that prevents
other commands from being
executed is already present
Check the type of the “always present” command (for example, it could be
a command from a clock on the AUX input).
9 short red ashes
1-second pause
9 short red ashes
The automation was
stopped by a “Stop
automation” command
Unlock the automation mechanism by giving the “Unlock automation”
command.
10 short red ashes
1-second pause
10 short red ashes
Intervention of the
“Obstacle Detection”
function from the encoder
The motors were hampered by greater friction during their movement.
Identify the cause.

Nice MC824H Specifications

General

Brand	Nice
Model	MC824H
Category	Control Unit
Language	English