Optional Configurations; Other Confi Guration Parameters - Carel MPXPRO User Manual

7.1 Other confi guration parameters

The other confi guration parameters that need to be set when
commissioning the controller concern :
• the measurement stability of analogue probes;
• the selection of the user terminal and/or remote display;
• the enabling of the keypad, remote control and buzzer (accessory);
• the standard display on the user terminal and the remote display;
• the display of messages / alarms on the remote display.
• the display in °C / °F and the decimal point;
• the locking of the buttons on the user terminal;
• the availability of the RTC (real time clock);
/2: Analogue probe measurement stability
Par. Description
/2 Analogue probe measurement stability
Defi nes the coeffi cient used to stabilise the temperature measurement.
Low values assigned to this parameter mean a prompt response of the
probe to variations in temperature; the reading however becomes mostly
sensitive to disturbance. High values high slow down the response but
guarantee greater immunity to disturbance, that is, a more stable, more
precise and fi ltered reading.
/to: Select user terminal/remote display
Par. Description
/to Confi gure user terminal/remote display
User terminal Remote display
0 Present Present
1 Optional Present
2 Present Optional
3 Optional Optional
This parameter used to select if the user terminal and/or the remote
display are optional, and are automatically recognised when fi tted. If the
required device is confi gured as optional, no alarm is generated on the
supervisor when absent.
H2: Disable keypad and remote control functions
Some functions relating to the use of the keypad can be disabled, for
example setting the parameters and the set point if the controller is
exposed to the public.
Par. Description
H2 Disable keypad and remote control
functions
Below is a summary of the modes that are active for each setting:
Buttons
0 YES YES YES YES
1 YES YES YES YES
2 YES YES YES YES
3 YES YES YES YES
4 YES YES NO NO
5 YES YES NO NO

7. OPTIONAL CONFIGURATIONS

Def Min Max UoM
4 1 15 -
Tab. 7.a
Def Min Max UoM
3 0 3 -
Tab. 7.b
Def Min Max UoM
1 0 5 -
Tab. 7.c
Functions
YES NO NO YES
YES YES YES YES
YES NO NO NO
YES YES YES NO
YES NO YES YES
YES NO NO YES
Tab. 7.d
When the set point and type F parameter setting functions are inhibited,
neither the set point nor the type F parameters can be changed, while
their values can still be displayed. The type C parameters, on the other
hand, being password protected, can also be set from the keypad,
following the procedure described previously. With the remote control
disabled, only the values of the parameters can be displayed, but they
cannot be modifi ed; in addition, the mute, defrost, continuous cycle, and
aux functions are disabled.
Note: If H2=2 or H2=3 is set on the remote control, this is
immediately disabled when pressing ESC. To re-enable the remote
control, set 'H2'=0 or 'H2'=1 from the keypad on the user terminal, on the
supervisor or in VPM.
/t1, /t2, /t: Display on user terminal and on remote display
Parameters /t1 and /t2 select the variable shown on the display during
normal operation. In the event of alarms, /t enables the display of alarms
on the remote display. For example, during defrost if /t=0 and d6 = 0, the
display does not show dEF alternating with the temperature set for /t2,
while when /t=1 the display shows dEF alternating with the temperature
set for /t2.
Par. Description
/t1 Display on user terminal
0 = Terminal disabled
1 to 11 = Probe 1 to 11
12 = Control probe
13 = Virtual probe
14 = Set point
/t2 Display on remote display see /t1
/t Display signals / alarms on remote display
0 = disabled, 1 = enabled
/5, /6: Temperature unit of measure and display decimal point
Par. Description
/5 Temperature unit of measure
0 =°C, 1=°F
/6 Display decimal point
0 = enabled, 1 = disabled
H4: Disable buzzer
The buzzer on the user terminal can be disabled by setting parameter H4.
Par. Description
H4 Terminal buzzer
0 = enabled; 1= disabled
H6: Terminal keypad lock confi guration
Parameter H6 is used to disable the functions relating to the individual
buttons on the keypad.
Par. Description
H6 Terminal keypad lock confi guration
55
ENG
Def Min Max UoM
12 0 14
12 0 14
0 0 1
Tab. 7.e
Def Min Max UoM
0 0 1
0 0 1
Tab. 7.f
Def Min Max UoM
0 0 1
Tab. 7.g
Def Min Max UoM
0 0 15
Tab. 7.h
MPXPRO - + 0300055EN rel. 1.1 30/08/10
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