Carel MasterCella Hoja De Instrucciones página 14

13) Increase or decrease the value with the or button respectively;
14) Press set to temporarily save the new value and return to the display of the sub-parameter code;
15) Press prg to return to the display of the parent parameter.
Saving the new values assigned to the parameters
To defi nitively save the new values of the modifi ed parameters, press the prg button for more than 5 seconds, thus exiting the parameter programming
procedure. All the modifi cations made to the parameters, and temporarily saved to the RAM can be cancelled, returning to "normal operation", by not
pressing any button for 60 seconds, and allowing the session to expire by timeout. If power is disconnected from the instrument before pressing the prg
button, all the changes made to the parameters and temporarily saved will be lost.
Direct access to the parameters by selecting the category
The confi guration parameters can be accessed, as well as already described above, also by the category (see the icons and the abbreviations in the table
below), according to the list on the display relating to the name and the corresponding icon. To directly access the selection of the parameters grouped by
category, press prg, , and to modify the parameter press set,
/
Category
Probe parameters
Control parameters
Compressor parameters
Defrost parameters
Alarm parameters
Fan parameters
Confi guration parameters
HACCP parameters
RTC parameters
Probe confi guration (/A2 to /A4)
In the MasterCella series, these parameters are used to confi gure the operating mode of the probes: 0 = probe absent; 1 = product probe (display only); 2
= defrost probe; 3 = condenser probe; 4 = antifreeze probe.
Digital input confi guration (A4, A5)
In the MasterCella, this parameter and the model of controller used defi ne the meaning of the digital input:
0 = input not active;
1 = immediate external alarm, normally closed: open = alarm;
2 = delayed external alarm, normally closed;
3 = enable defrost from external contact: open = disabled (an external contact can be connected to the multifunction input to enable or disable the defrost).
4 = start defrost when closing the external contact;
5 = door switch with compressor and fans off: open = door open;
6 = remote ON/OFF: closed = ON;
7 = curtain switch: closed = curtain lowered;
8 = low pressure switch input for pump-down: open = low pressure;
9 = door switch with fans only off: open = door open;
10 = direct/reverse operation: open = direct;
11 = light sensor;
12 = activation of AUX output (if confi gured with the parameters H1 or H5): opening = deactivation;
13 = door switch with compressor and fans OFF and light not managed;
14 = door switch with fans OFF and light not managed.
Confi guration of AUX1 and AUX2 relay outputs (H1 and H5)
This establishes whether the fourth and the fi fth relay (present only if featured on the model) are used as auxiliary outputs (e.g. demister fan or other
ON/OFF actuator), as an alarm output, as a light output, as a defrost actuator for the auxiliary evaporator, as a control for the Pump-Down valve or as an
output for the condenser fan.
0 = alarm output: normally energised; the relay is de-energised when an alarm occurs;
1 = alarm output: normally de-energised; the relay is energised when an alarm occurs;
2 = auxiliary output;
3 = light output;
4 = auxiliary evaporator defrost output;
5 = Pump-Down valve output;
6 = condenser fan output;
7 = delayed compressor output;
8 = auxiliary output with switch off;
9 = light output with switch off;
10 = output disabled;
11 = reverse output in control with dead band;
Parameters
/
r
c
d
A
F
H confi guration
H HACCP
rtc
/ ...
Text
'Pro'
'CtL'
'CMP'
'dEF'
'ALM'
'FAn'
'CnF'
'HcP'
'rtc'
6
Icon
Tab. 3.c
+050004105 rel. 1.1 del 17.11.05