Carel FCR3, Руководство пользователя, Страница: 43 / 56

17
ENG
“FCR3 three-phase controller” +030222150 - rel. 1.3 - 12.01.2021
The temperature alarm only activates a visual signal or a variable. There
are two thresholds (high/low), outside of which a temperature alarm is
activated via a variable and the fl ashing of the red LED for 0.5 sec. The
hysteresis is 3°C for each threshold. The thresholds can be set by the user.
This alarm indication has priority over the continuous activation of the
alarm from digital input. In addition, two alarms are available (without
indication) for probe short-circuited and probe open.
Parameter Function
Temper IR.6
Temperature value of NTC
probe fi tted on board -20 to 100 °C
indicated as integer with sign
Tab. 6.k
T EMPALM – T EMPALM +
ALR T MP = 0 ALR T MP = 1 ALR T MP = 1
3° C 3° C
Fig. 6.e
Associated parameters
Par. Modb Range Def UoM Description
TEMPER IR.6 -20-100°C R 1 Temperature probe reading
HR.5 -30-105°C 85 1 Maximum temperature alarm threshold
TEMPALM- HR.6 -30-105°C -20 1 Minimum temperature alarm threshold
ALRTMP DI.7 0/1 R 1
Alarm status
If TEMPER >= () ==> ALRTMP=1 – LED blink
If TEMPER <= ()-3 ==> ALRTMP=0 – LED off
If TEMPER <= (TEMPALM-) ==> ALRTMP=1 – LED blink
If TEMPER >= (TEMPALM-)+3 ==> ALRTMP=0 – LED off
ALRPRC DI.8 0/1 R 1
Temperature probe short-circuited alarm
ALRPRC = 1 probe short-circuited
ALRPCR = 0 probe not short-circuited
ALRPRO DI.9 0/1 R 1
Temperature probe open alarm
ALRPRC = 1 probe open
ALRPCR = 0 probe not open
Tab. 6.l
OUT
FCR
[IR.9]
IOVR
[CO.9]
IN [IR.10]
0
1
+
-
OUT
MEM
[HR.10]
Conditioning
Set
(*)DELAY
OUT
MAX
, OUT
MIN
, MIN, LIN
0
1
EOVR
[CO.11]
ALMO
[HR.9]
0
1
ALRM
[DI.11]
(*) DELAY active with
IOVR | EOVR | ALRM ==1
OUT
REAL
[IR.11]
Fig. 6.f