Digital Input Configuration; Frost Protection Alarm - Carel ir33+FMC Guía Rápida

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3.14 Digital input configuration

If the digital input is configured as an immediate alarm A4 = 1/2 the compressor is controlled according to
parameter A6.
Cod. Parameter
A4 Digital input 1 configuration (DI1)
1 = immediate external alarm
2 = delayed external alarm
A5 Digital input 2 configuration (DI2)
See A4
A6 Stop compressor on external alarm
0 = compressor always off ;
100 = compressor always on
A7 Digital alarm input delay
0 = control outputs unchanged

3.15 Frost protection alarm

The probe has to be set as a frost protection probe, see parameter list and diagram below.
If this probe measures a temperature less than the threshold ALF for a time greater than AdF, the alarm "AFr"
(manual reset) is activated and the Fullmotion compressor is switched OFF.
Cod. Parameter
Probe 2 configuration (S2)
0 Absent
1 Product (display only)
/A2
2 Defrost
3 Condenser
4 Frost
Probe 3 configuration (S3/ DI1) see /A2
/A3
0 = Digital input 1
Probe 4 configuration (S4/ DI2) see /A2
/A4
0 = Digital input 2
ALF Frost protection alarm threshold
AdF Frost protection alarm delay
Alarms involved
Cod. Message
AFr Frost protection alarm
ir33+ wide Fullmotion - +040000055 - rel. 1.0 - 09.06.2014
UOM
-
-
Min
Min
S
ALF
ALARM ON
AFr
OFF
Fig. 3.g
UOM
-
-
-
°C/°F
Min
Dis. Type
C
I
C
I
C
I
C
I
AdF
Dis. Type
C
I
I
C
I
C
C I
C I
16
Def. Max Min
0 14 0
0 14 0
0 100 0
0 250 0
t
t
Def. Max
2 4
0 4
0 4
-28 200
1 15
Tab. 3.l
Min
0
0
0
-50
0
Tab. 3.m