16
ENG
“Ultrasound for fancoil” +0300059IE - rel. 1.5 - 15.07.2019
6.4 Main
display
The humidifi er display normally shows control signal status. For ON/OFF or
proportional input signal (A0=0, A0=1, A0=3 and Th probe disconnected):
•
display input signal;
•
tank hour counter (h).
•
maximum water vapour production control (parameter P0) (*);
•
control hysteresis (parameter P1) (*);
•
humidifi er status (Enb = enabled): pressing ENTER disables the
humidifi er and dIS is shown on the main screen.
For humidity probe input signal (A0=2, A0=3 and Th probe connected):
•
display humidity probe reading;
•
display temperature (Th only)
•
tank hour counter (h).
•
maximum water vapour production control (parameter P0) (*);
•
proportional band (parameter bP)(*);
•
humidity set point (parameter SP)(*);
•
humidifi er status (Enb = enabled): pressing ENTER disables the
humidifi er and dIS is shown on the main screen.
If enabling probe TH as a humidity limit probe (bH=1) in contorl modes
A0=0, A0=1, A0=2, the following parameters will be added to the main
screen:
•
humidity limit set point (parameter SL) (*);
•
limit proportional band (parameter bL) (*)
Parameter C0 (see Chap. 7) can be used to change the value shown on
the main display (default: display input signal).
Disabling options:
•
from remote (ON-OFF contact open), the display shows “C - -”
alternating with the main screen;
•
on the display, by pressing ENTER on Enb, the display will then show
dIS (to enable it again, press ENTER); for a master/slave network, this
only disables the individual humidifi er in question;
•
from display (pressing Esc for 5 s), the display shows “t - -” alternating
with the main screen, for a master/slave network, this will disable all
of the humidifi ers in the network; to switch back ON, press ESC for 5 s
until t - - is no longer shown;
•
from supervisor (RS 485 Carel/Modbus) the display shows “S - -”
alternating with the main screen;
If there are multiple-disabling concurrently, they are alternated cyclically
on the main screen.
If the display shows “
---
”, it means a communication error between display and
humidifi er: control connection cable. If the problem persists, call for service.
(*) To modify the parameter displayed press:
•
ENTER (display:
);
•
UP or DOWN to set the value
•
ENTER to confi rm the new value.
Press ESC to return to the main screen. The parameters can also be
accessed from the list of parameters (see Chap. 7).
6.5 Display software release
1) on power-up the display shows “rel. x.y” (e.g. rel. 1.2);
2) while the functioning;
a)
on the display: from the main screen press ESC and UP together,
the following are shown in sequence: humidifi er size, supply, number
of phases and software release;
b)
via network on integer variable 81. Format “## = #.#”
(e.g. 12 = release 1.2)”
6.6 Accessing and setting parameters
The confi guration parameters can be used to set and control humidifi er
functions and status.
From the main screen press:
•
ENTER for 2 seconds,
•
enter the password 77 using UP or DOWN,
•
ENTER to confi rm and access the list of parameters,
•
UP or DOWN to scroll the list,
•
ENTER to select a parameter (display: ‘set’),
•
UP to modify (increase) the value of the parameter. To scroll faster press
DOWN together,
•
DOWN to modify (decrease) the value of the parameter. To scroll faster
press UP together,
•
ENTER to save the new value and return to the list of parameters, or ESC
to return to the list without saving the value,
Press ESC to return to the main screen.
6.7 Parameters: Recall default values
The default values of the parameters can be recalled at any time from the
main screen.
From the main screen press:
•
ENTER for 2 seconds,
•
enter the password 50 using UP or DOWN and press ENTER,
•
the message dFt is displayed, press ENTER and dFt will start fl ashing: to
restore the default values, press ENTER again, or press ESC to exit.
If no button is pressed for 30 seconds, the display returns to the main
screen without recalling the default values.
6.8 Reset hour counter from display
Tank hour counter
•
Access parameter ‘d3’ (see chapt. “Confi guration parameter”);
•
press UP and DOWN for 5 seconds.
When reset is complete, ‘res’ is shown on the display.
Internal piezoelectric transducer hour counter:
•
Access parameter ‘d6’ (see chap. “Confi guration parameters”);
•
press UP & DOWN for 5 seconds
When reset is complete, ‘res’ is shown on the display (d6 returns to the
value fo AF = 9999 default).
