Carel PJ32 Serie Manual De Instalación página 9

3.3 Setting the main operating parameters
The plug-in series instruments are supplied ready to use. They are in fact programmed in the factory (default settings) to
respond to the more common requirements. The programming is performed by assigning all the parameters the more frequently
required value; the table below lists the parameters and the corresponding default value.
code
/C ambient probe calibration
/2 measurement stability (probe delay and range limit), 1 = fast
selection of probe to display (0 = ambient, 1 = defrost)
/4
/5 selection °C/°F (0=°C)
rd control differential (hysteresis)
r1 minimum set allowed to the user
maximum set allowed to the user
r2
r3 enable alarm Ed (1=enable)
r4 set automatic variation of the Set point for night operation
c0 compressor start delay at instrument on
minimum time between 2 successive starts of the compressor
c1
c2 minimum compressor off time
c3 minimum compressor on time
Duty Cycle safety relay ON time
c4
cc continuous cycle duration
c6 alarm bypass time after continuous cycle
type of defrost (0=heat el., 1=gas, 2=heat. el. time, 3=gas time)
d0
dI interval between two defrosts
dt end defrost temperature
dP maximum defrost duration or effective duration for d0=2 or
d0=3
d4 defrosting at instrument on (1=yes)
d5 defrost delay
d6 display off during defrost (1=yes)
post-defrost dripping time
dd
d8 alarm bypass time after defrosting
d9 defrost priority over minimum compressor times (1=yes)
time basis (0 =hours/min, 1=min/s)
dC
A0 alarm/fan differential
AL shift low temperature alarm threshold
AH shift high temperature alarm threshold
temperature alarm delay
Ad
A4 digital input configuration
A7 alarm input detection delay
fan operating mode
F0
F1 fan on temperature
F2 fans off with compressor off (1=yes)
fans off during defrost (1=yes)
F3
Fd fan time-out during post dripping
H0 serial address
IR34S: enable defrosting, IR34C: multifunction relay function
H1
H2 disable keypad, 0=disabled
H4 disable buzzer
control set point
L1
(**) unit of measure (hereafter u. of m. in the tables).
To achieve the maximum performance from the controls, or in the case of special needs, the values of the operating parameters
can be modified. The following notes describe the factory settings and the parameters which are more frequently modified (set
point, differential, etc.). Furthermore, for convenience, all parameters which should be checked before operating the unit are
indicated.
Cod. +030221881 rel. 1.3 - 03/05/2006
description
d d
type default
min max
F -127 127 0
C 1 15 4
0 1
C 0
C 0 1 0
F 0 19 2
C -50 127 -50
-50 127
C 60
C 0 1 0
C -20 20 3
C 0 15 0
0 15
C 0
C 0 15 0
C 0 15 0
0 100
C 0
C 0 15 4
C 0 15 2
0 3
C 0
F 0 199 8
F -50 127 4
1 199
F 30
C 0 1 0
C 0 199 0
C 0 1 1
0 15
F 2
F 0 15 1
C 0 1 0
0 1
C 0
C 0 19 0
F 0 127 0
F 0 127 0
0 199
C 0
C 0 4 0
C 0 199 0
0 1
C 1
F -50 127 5
C 0 1 1
0 1
C 1
F 0 15 1
C 0 199 1
0 1
C 1
C 0 1 1
C 0 1 0
-50 127
S 4
plug-in
unit of
measure
(**)
°C/°F x 0,1
°C/°F
°C/°F
°C/°F
°C/°F
min
min
min
min
min
hours
hours
hours/min
°C/°F
min/s
min
min
hours
°C/°F
°C/°F
°C/°F
min
min
°C/°F
min
°C/°F
Tab. 3.3.1
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