Servicing - Nice Mindy A924 Manuel D'instruction Pour L'installateur

6) Servicing

The control unit is an electronic component and therefore needs no particular maintenance; however, the board and the relative connected devices
should be periodically checked (at least every 6 months) by carrying out the whole testing procedure (see Chap. 4).
In order to plan the maintenance programme for the whole system, a manoeuvre counter has been fitted to the control unit which increases its val-
ue after every opening manoeuvre. The Maintenance (MAN) led flashes to signal this increase. The value of the manoeuvre counter is constantly
compared with an alarm threshold (programmable by the fitter) and the warning threshold (automatically set to the alarm threshold less about 6%).
When the number of manoeuvres performed exceeds the warning threshold, the maintenance led only flashes during manoeuvres, while if the alarm
threshold is exceeded it continues to flash (with the motor stopped and moving) in order to signal that maintenance must be performed.
The alarm threshold can be programmed from a minimum value of 200 to a maximum value of 50800 manoeuvres in multiples of 200.
Tabella "I" Programming the alarm threshold
1. Set the dip switches as shown
2. Divide the number of manoeuvres to programme by 100 and then by 2
3. Consult the table to find the combination of Dip Switches giving the same total value
as the above number and move the relative Dip Switches to On.
Dip-switch
Value
4. Perform the "Memorisation procedure" (see paragraph 3.3)
After programming the alarm threshold, visualise it in order to check the operation was performed correctly.
Table "L" Visualising the alarm threshold
1. Set the dip switches as shown:
2. Move the Dip Switch 1 to On (2,3,4 and 5 to Off), count the number of times the ok led flashes and write the number on a piece
of paper (if it is 10, write 0)
3. Repeat the operation with Dip Switches 2, 3, 4 and 5
4. Reconstruct the number of manoeuvres as shown in one of the following two examples
Dip Switch
arrangement
Example Number of times
n° 1 "OK" led flashes
Example Number of times
n° 2 "OK" led flashes
Use the same procedure to visualise the number of manoeuvres performed;
Tabella "M" To visualise the number of manoeuvres performed
1. Set the dip switches as shown:
2. Count the number of times the "OK" led flashes with Dip Switches 1, 2, 3, 4 and 5 as shown in examples 1 or 2.
N.B. whenever the warning threshold is programmed the number of manoeuvres performed is automatically cancelled.
16
Sw1 Sw2 Sw3 Sw4
1 2 4 8
1 2 3 4 5 6
10
1
Sw5 Sw6 Sw7 Sw8
16 32 64 128
1 2 3 4 5 6 1 2 3 4 5 6
1 2
4 10
1 2 3 4 5 6 7 8 9 10
Example: number of manoeuvres
to programme: 30,000
Results after dividing: 150
150 = 128 + 16 + 4 + 2,
Dip Switches 5 , 8, 3 and 2 to On
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 1 2 3 4 5 6
10 4
10 7
1 2 3 4 5 6 7 8 9 10
11 12
11 12
11 12
Number of
manoeuvres
1.204
14.007
11 12