Rittal enclosure cooling unit
29
7 Operation
EN
7.4.6
Programming overview
Fig. 54:
Programming overview
7.4.7
Parallel device control
The IoT interface (Model No. SK 3124300, see sec-
tion 13 "Accessories") supports parallel activation and
deactivation of up to two cooling units. Further informa-
tion can be found in the "Additional instructions" docu-
ment for the IoT interface. This document is available for
downloading on the Rittal website.
7.4.8
Evaluate system messages
System messages appear on the display with a system
code. Selected messages will additionally flash up in
red. Warning messages (see tab. 7) may additionally ap-
pear in yellow if you have activated this in the Rittal Scan
& Service app under "System messages". Messages
can also be evaluated via a floating alarm relay on termi-
nals 2 and 3 of the signal connector (X3).
The relay output is in the de-energised state NO (Nor-
mally Open). As soon as voltage is applied to the cooling
unit, the alarm relay picks up. This is the factory setting
for the cooling unit's normal operating state. As soon as
a system message occurs or the power supply is inter-
rupted, the alarm relay will drop out and open the con-
tact.
The switch logic of the alarm relay can be altered using
the Rittal Scan & Service app (see section 7.5.2 "Config-
uration").
7.5
Rittal Scan & Service app
7.5.1
General
The Rittal Scan & Service app allows you to make
changes quickly and easily to the cooling unit settings
via the NFC interface.
Install the Rittal Scan & Service app on any suitable
mobile phone (see section 13 "Accessories").
Connect to a cooling unit via an NFC scan.
The default setting of the device PIN is 22.
1 s
1 s
1 s
1 s
1 s
3 s
3 s
3 s
1 s
1 s
3 s
3 s
1 s
Key
tSE: Temperature settings
CON: Control mode
Int: Internal temperature
ESt: External sensor temperature
Out: Outlet temperature
SP: Setpoint
CF: Celsius/Fahrenheit
tSt: Selftest
OFF: Off
On: On
Other displays:
COD: Code
ACC: Accepted
Err: Error
OK: Ok
