22
CAREL CONTROLER PROGRAM:
CAREL PJEZS0G000 ELECTRONIC TEMPERATURE CONTROLLER PARAMETER SETTINGS FOR RTW MODELS
Sr.
No.
Display
on
controller
Parameters
VIS
Min.
Max.
UOM
Factory
setting
RTW
1
PS
PASSWORD
F
0
200
..
22
22
2
St
Control temperature
F
r1
r2
ºC/ºF
4.0
2.0
PROBE PARAMETER
1
/2
Mesurment stability
C
1
15
-
4
4
2
/4
Select Probe / input displayed (*)
F
1
3
-
1
1
3
/5
Select °C / °F (0=°C, 1=°F)
C
0
1
-
0
0
4
/6
Disable decimal point
C
0
1
-
0
1
5
/C1
Preobe calibration
F
-12.7
12.7
ºC/ºF
0.0
0.0
6
/C2
Preobe calibration
F
-12.7
12.7
ºC/ºF
0.0
0.0
7
/C3
Preobe calibration
F
-12.7
12.7
ºC/ºF
0.0
0.0
CONTROL PARAMETERS
1
rd
Contole differential (hysteresis)
F
0.0
19.0
ºC/ºF
2.0
2.5
2
r1
Minimum set point allowed to user
C
-50.0
r2
ºC/ºF
-50.0
-2.0
3
r2
Maximum set point allowed to user
C
r1
150
ºC/ºF
90.0
12.0
4
r3
Operation mode (0=defrost;
1=direct; 2=reverse)
C
0
2
-
0.0
0
5
r4
Automatic night-time set point variation
C
-50.0
50.0
ºC/ºF
3.0
0.0
COMPRESSOR PARAMETERS
1
c0
Comp. and fan start delay after start-up
C
0
100
min
0
3
2
c1
Min. time between successive comp. start
C
0
100
min
0
3
3
c2
Min. compressor off time
C
0
100
min
0
3
4
c3
Min. compressor on time
C
0
100
min
0
0
5
c4
r4 safty (duty setting)
C
0
100
min
0
30
6
cc
compressor cycle duration
C
0
15
h
4.0
0
7
c6
Alarm by pass time after cont. cycle
C
0
15
h
2.0
0
DEFROST PARAMETERS
1
d0
Type of defrost (0=heater; 1=hot gas;
2=heater by time; 3=hot gas by time;
4=heater by time with temp. cont.)
C
0
4
-
0
0.0
2
dI
Interval between two defrost
F
0
199
h/min
8
4
3
dt
End defrost temperature
F
-50.0
127.0
ºC/ºF
4.0
4.0
4
dP
Max of effective defrost duration
F
1
199
min/s
30.0
60.0
5
d4
Defrost when the instrument switch on
(1=activated)
C
0
1
-
0
1
6
d5
Defrost delay on start-up or from digital
input
C
0
199
min
0
0
7
d6
Disable temperature display during defrost
(1=display disabled)
C
0
1
-
1
1
8
dd
Dripping time after defrost
F
0
15
min
2
5
9
d8
Alarm bypass time after defrost
F
0
15
h
1
1
10
D9
Defrost priority over comp. protecttors
(0=protection time respected; 1=protesction
time not respected)
C
0
1
-
0
0
11
d/
Display defrost probe temp.
F
-
-
-
-
Coil probe temp.
12
dc
Time base (for defrost repected only;
0=h/min; 1=min/s
C
0
1
-
0
0
ALARM PARAMETERS
1
A0
Alarm and fans differntial
C
-20.0
20.0
ºC/ºF
2.0
2.0
2
AL
Low temp. alarm threshold/deviation (AL=0;
alarm disabled)
F
-50.0
150.0
ºC/ºF
0.0
0.0
3
AH
High temp. alarm threshold/deviation
(AH=0; alarm disabled)
F
50.0
150.0
ºC/ºF
0.0
0.0
4
Ad
Low and high temperature alarm delay
C
0
199
min
0
0
5
A4
Digital input configuration
C
0
11
-
0
0
6
A7
External alarm detection delay
C
0
199
min
0
0
7
A8
Enable alarm 'Ed': end defrost by timeout
(1=enabled)
C
0
1
-
0
0
8
Ac
High condenser temperature alarm
C
-50.0
150.0
ºC/ºF
70.0
70.0
9
AE
High condenser temperature alarm
differential
C
0.1
20
ºC/ºF
5.0
5.0
10
Acd
High condenser temperature alarm delay
C
0
250
min
0
0
Summary of Contents for FTW 177
Page 19: ...19 POWER BOX ASSY HFW 77 ...
Page 27: ...28 Wiring Drawing ...
Page 28: ...29 ...
Page 29: ...30 Trouble Shooting ...
Page 30: ...31 ...
Page 31: ...32 DISPOSAL ...
Page 32: ...33 ...
