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7.3
Accessing "C" parameters
1. hold down
and
2. press
and
to introduce the password ("77");
3. press
to confirm the password. If the password is incorrect, the programming procedure will interrupt, otherwise "C00" will be
displayed.
4. press
and
to scroll the list of the parameters (hold the buttons down to scroll the parameters quickly);
5. press
to display the value of the selected parameter (the corresponding unit of measure will be displayed first for 1 second);
6. press
and
to change the value of the parameter (hold down the buttons to quickly increase or decrease the value);
7. press
to confirm the displayed value. The identification code of the parameter will appear again on the display;
Note: to display and modify, if necessary, other parameters, repeat steps 4, 5, 6, 7 above.
8. press
to save any modification and exit the programming procedure.
7.4
Validity of the modifications
Any modification will become operative as soon as it is confirmed by pressing
operative immediately: St1, St2, P01, P02, C04, C05, P25, P26, P27, P40, P41, P45.
Some parameters, especially those related to serial connection, will become operative only after you have re-started the
instrument.
After 5 seconds from the release of the last button during the programming phase, the display starts to flash (this means you are still
operating in the programming section). After 60 seconds from the release of the last button, during which the display shows the value of a
parameter, the previous modification will be neglected and the display will show the identification code of that parameter. After further 5
seconds, the display will start to flash again and after 60 seconds the programming procedure will automatically exit; the values of the
parameters will remain the same as the ones set before the programming phase.
If you are displaying the identification code of a parameter, the programming procedure will automatically exit after 60 seconds.
7.5
Displaying the unit of measure
Displaying the unit of measure is extremely useful as it avoids any misunderstanding of the values of each single parameter. The unit of
measure depends on the type of probe being used as well as on the configuration of the instrument. It is always possible, however, not to
make the unit of measure appear on the display, or make it appear only when you have to access parameters P and C (parameter C32). In
the event of an adimensional number, the unit of measure will not be displayed.
7.6
Setting min. and max. output values
In order to set-up the controller in the easiest way, you can avail yourself of a special procedure allowing you to set the minimum
(parameter C04) and maximum (parameter C05) values of the 0÷10 V output of the FCM controller. This function helps optimize the
performance of the connected fans.
Note: using this procedure means to energize the analogue output, that is, to actuate the rotation of the connected fans, independently of
the previously set operating mode and of any command coming from terminal block
To set the min. and max. output values follow the instructions below (at start up only):
1.
press
and
within 5 seconds from start-up until the display shows "C04";
2.
press
: the output energizes until it reaches the current value of the C04 parameter; its value will be displayed in percentage (the
variation speed of the output is 5% per second, that is 0.5 V/s). Press
C04 value;
3.
use
and
to set the new value (hold the button down to increase/decrease the value of the parameter quickly);
4.
press
to confirm the new value. "C04" will appear on the display; the output will gradually go to zero;
5.
press
and
to display "C05";
6.
to set the max. output value, follow the same indications as for the minimum value (using C05 instead of C04)
Note: the instructions above can be repeated as many times as you wish, according to your application requirements
FCM electronic regulator
together for about 5 seconds, until "00" appears on the display; after that digit the password;
Display
°C
temperature in degrees Centigrade
°F
temperature in degrees Fahrenheit
rH
relative humidity in %
bAr
SEc
time in second (or milliseconds)
Min
o
/ o
h
hexadecimal number
. The following parameters, instead, will become
Unit of measure
pressure in bar
time in minutes
percent
or
to interrupt the output variation before it reaches the
12
Cod. +302235300 - Rel. 2.0 del 30/11/98
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