Rittal CS 9761.212 - Editable Parameters

34 RITTAL outdoor cooling unit assembly and operating instructions
6 Operation
EN
In principle, the programming is identical for all edit-
able parameters.
To enter programming mode:
• Press button 2 (“Set”) for approx. 5 sec.
The controller is now in programming mode. While in
programming mode, if you do not press any buttons
for approx. 30 seconds, the display will first flash,
then the controller will switch back to normal display
mode. The “Esc” display indicates that any changes
made have not been saved.
• Press the programming buttons
▲ (°C) or ▼ (°F)
to switch back and forth between the editable
parameters (see Tables 2 and 3).
• Press button 2 (“Set”) to select the displayed
parameter for editing.
The current value of this parameter is displayed.
• Press one of the programming buttons
▲ (°C)
or
▼ (°F).
The “Cod” display will appear. In order to be able to
change a value, you must enter the authorisation
code “22”.
• Keep the programming button
▲ (°C) held down
until “22” appears.
• Press button 2 (“Set”) to confirm the code.
You can now alter the parameter within the preset
limits.
• Press one of the programming buttons
▲ (°C)
or
▼ (°F) until the required value appears.
• Press button 2 (“Set”) to confirm the change.
You can now alter other parameters in the same way.
There is no need to re-enter the authorisation code
“22”.
• To exit programming mode, press button 2 (“Set”)
again for approximately 5 sec.
“Acc” will appear in the display to indicate that the
changes have been saved. The display will then
switch back to regular operation (enclosure internal
temperature).
You can also program the Comfort controller using
a diagnosis software package (Model No.
SK 3159.100), the supply of which also includes
a connection cable to the PC. The cable connector
on the rear of the Comfort controller display serves
as an interface.
6.1.4 Editable parameters
See also chapter “6.1.5 Programming overview”, page 35.
Tab. 2: Editable parameters
Progr.
level
Display
screen
Parameter Min.
value
Max.
value
Factory
setting
Description
1 St Nominal value
of the enclosure
internal
temperature T
i
20 55 35 The setting of the enclosure internal temperature
is preset at the factory to 35°C and may be altered
within a range of 20 – 55°C.
2 Fi Filter mat
monitoring
10 60 99
(= off)
Filter mat monitoring is deactivated as the default
setting (99 = off). CS outdoor cooling units do
not use filter mats, and therefore we do not
recommend that you alter this parameter.
3 Ad Master-slave
identifier
0 19 0 See “6.1.7 Setting the master-slave identifier”,
page 37.
4 CF Temperature
conversion
°C/°F
0 1 0 The temperature display can be switched from °C
(0) to °F (1). The corresponding LED displays the
current unit of temperature.
5 H1 Setting for
switching
difference
(hysteresis)
2 10 5 The cooling unit is preset in the factory to a
switching hysteresis of 5 K. This parameter should
only be changed in consultation with us.
Please contact us for advice.
6 H2 Differential for
error message A2
3 15 5 If the internal enclosure temperature exceeds the
set value by more than 5 K, then error message A2
(enclosure internal temperature too high) appears
on the display terminal. If necessary, the diffe-
rential may be altered here within the range of
3 – 15 K.