18
ENG
ir33+ VCC
+040000058 - rel. 1.2 - 15.02.2018
3.1.13 Shutdown from keypad
Press and hold the ON/OFF button for more than 3 seconds to switch the controller on/off . If speed control is
active, the compressor is switched to the minimum speed set for
cmf
for a fi xed time of 30 sec. If pump down
has been confi gured, the controller activates the pump down function.
3.1.14 Digital input confi guration
If the digital input is confi gured as an immediate alarm
A4 = 1/2
, the compressor is controlled based on the
setting of parameter
A6
.
Code Parameter
UOM Dis.
Def.
Max
Min
A4
Digital input 1 confi guration (DI1)
1 = immediate external alarm; 2 = delayed external alarm
-
C
0
14
0
A5
Digital input 2 confi guration (DI2); See A4
-
C
0
14
0
A6
Stop compressor on external alarm
0 = compressor always off ; 100 = compressor always on
Min
C
0
100
0
A7
Digital alarm input delay; 0 = control outputs unchanged
Min
C
0
250
0
Tab. 3.l
3.1.15 Frost
alarm
A probe must be set as a frost protection probe, see the list of parameters and diagram below. If this probe
measures a temperature below the threshold
ALF
for a time greater than
AdF
, alarm “
AFr
” (manual reset) is
activated and the compressor is stopped.
Code
Parameter
UOM Dis. Def. Max Min
/A2
Probe 2 confi guration (S2): 0 = Absent; 1 = Product (display only)
2 = Defrost 3 = Condenser 4 = Frost
-
C
2
4
0
/A3
Probe 3 confi guration (S3/ DI1) see /A2: 0 = Digital input 1
-
C
0
4
0
/A4
Probe 4 confi guration (S4/ DI2) see /A2: 0 = Digital input 2
-
C
0
4
0
ALF
Frost alarm threshold
°C/°F
C
-28 200 -50
AdF
Frost alarm delay
Min
C
1
15
0
Tab. 3.m
Alarms involved
Code
Message
AFr
Frost alarm
Tab. 3.n
ON
OFF
ALARM
AFr
ALF
S
t
t
AdF
Fig. 3.j