Nice MC800 User Manual

18 – ENGLISH
EN
6.5 MEMORY DELETION
m
The procedure described below restores the con-
trol unit’s default settings. All the custom settings
will be lost.
L5 L6 L7 L8L4L3L2L1
L1
L2
21
To delete the control unit’s memory and restore all the default
settings, proceed as described below:
1. press and hold the
f
and
h
buttons until
LEDs “L1” and “L2” start ashing
2. release the buttons.
TROUBLESHOOTING...
(troubleshooting guide)
7
7 TROUBLESHOOTING GUIDE
Some devices are congured for signalling the operating status
or the presence of any anomalies.
If any anomalies occur, the “BlueBus” (A) LED (“Figure 22”) will
emit some ashes. “Table 8” describes the cause and possible
solution for each type of signal.
LEDs (B) and (L1..L4) (“Figure 22”), located on the control unit,
will also emit signals. “Table 9 and Table 10” describe the cause
and possible solution for each type of signal.
L5 L6 L7 L8L4L3L2L1
Common
0V
EL
OGI
Bluebus
2
Close
Open
SbS
Stop
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
A
B
L1
L2
L3
L4
22
Table 8
SIGNALS OF THE BLUEBUS (A) LED (“FIGURE 22”)
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.
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, one of 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 again and disconnect
the power supply, if necessary. If the condition persists, there may be a
serious fault requiring the electronic board to be replaced.
7 short red ashes
1-second pause
7 short red ashes
Electric circuit anomaly
Wait at least 30 seconds then try giving a command again and disconnect
the power supply, if necessary. If the condition persists, carry out the
following check to verify which other LED remains lit so, in order to assign
one of the following explanations: L1 ashing: intervention of the motor
protection devices, or motors disconnected; L2 ashing: limit switch
anomaly (limit switches learned but with anomaly status); L3 ashing:
limit switch anomaly (limit switches not learned but present); L4 ashing:
generic anomaly.
if, after identifying and resolving the anomaly, the condition persists, there
may be a serious fault requiring the electronic board 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 command that is always present; for example, it could
be a command from a timer on the “open” 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.

Nice MC800 Specifications

General

Brand	Nice
Model	MC800
Category	Control Unit
Language	English