GENERAL D'ASPIRAZIONE 126M, Инструкция по установке, использованию и техническому обслуживанию, Страница: 25 / 44

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5.5 Changing the vacuum system setpoint
In all the vacuum systems the setpoint is preset at -160 mbar.
This value indicates the constant operating vacuum that the vacuum system
should reach. The inverter will then adjust the turbine frequency so that the
actual vacuum value reaches the preset value, called the setpoint.
To change the setpoint, proceed as follows:
1.
Enter the menu section using the function key ( );
then, using the arrow keys, enter the parameters group.
2.
Select the “FAVOURITES” parameter list
3. Ent er parameter 40.21, change the vacuum value using the appropriate keys and then press “SAVE”
(N.B. it is not possible to set a value lower than -140 mbar or higher
than -200 mbar)
4.
Return to the HOME screen using the BACK/EXIT key.
5.6 Routine maintenance signalling
All models are equipped with a warning system that notifies the operator of
routine maintenance checks to be carried out.
CHECK DUST CONTAINER:
The inverter is equipped with a factory preset timer that trips the “Check Con -
tainer” alarm after the set number of hours.
The preset timer can be changed using parameter 47.13 in the favourite
parameters section.
N.B. The last digit on the hours setting is a decimal. Therefore, to set 150 hours set the value at “1500”.
The alarm can be reset by pressing the “Check” button on the back of the vacuum system (see Fig. 3 on page
13). In case there is a Brel module, when the alarm is tripped, the corresponding relay will be energised.
CHECK FILTER:
A second timer, as described above, will tr ip the “CHECK FILTER” alarm.
The preset timer can be changed using parameter 47.14 in the favourite
parameters section.
N.B. The last digit on the hours setting is a decimal. Therefore, to set 300
hours set the value at “3000”.
The alarm can be reset by pressing the “Check” button on the back of the vacuum system (see Fig. 3 on page
13). In case there is a Brel module, when the alarm is tripped, the corresponding relay will be energised.
The vacuum system should always be powered.
The routine maintenance timers will be reset in case of power failure.