plug-in
Cod. +030221881 rel. 1.5 - 26/10/10
31
4.10 H = other settings
alarm parameters type min max uom def
H0
serial address C 0 199 - 1
H1
special configurations: mod. S – enable defrost
model with alarm relay –relay activation state
C 0 1 flag 1
H2
disable keypad (0=no, 1=yes) C 0 1 flag 1
H4
enable buzzer 0 = enabled C 0 1 flag 1
H5
identification code set only by serial C -99 99 byte 10
t external parameters (optional modules) F -127 127 byte -
Tab. 4.10.1
H0: serial address
Assigns the instrument an address which it responds to when connected to a supervisory or telemaintenance system.
Def.: H0 = 1. Available on all models.
Warning: H0 = 0 is reserved.
H1: special configurations
This parameter defines special functions which vary according to the model.
PJ32S (codes PJ32S0E*, S6E* and PJ32S0P*) can operate as simple thermostats (H1=0) or as thermostats and defrost controls for
static units at normal temperature (defrost on compressor stop, H1=1).
This function can be used only for version S with one probe, in that the models which allow the connection of the product probe
are programmed as Y models, and for these units defrost is always available.
Def.: H1=1, operation with defrost.
PJ32 with alarm relay
H1 sets the operating logic for the alarm relay. If set to zero (0) the relay is energised when the alarm is active, if set to one (1) the
relay is de-energised in the event of an alarm. The only model which currently features the alarm relay is the PJ32S20*.
Def.: H1=1, relay not energised in the event of an alarm.
Warning: the S models with alarm relay (cod. PJ**S2*) are programmed so as to be able to set the alarm output logic. The
programming is thus as for X type instruments, with all the corresponding parameters. The defrost function is thus not set using
H1, but rather using the parameters corresponding to the defrost.
H2: disable keypad
Parameter H2 can be used to disable the modification of the set point and the other operating parameters when the instrument is
located in areas which are accessible to the public.
With the keypad disabled, (H2 = 0) the set point and type F parameters can not be modified. Their value can however be
displayed. Type C parameters, which are password protected, can also be modified following the procedure described below.
Modification of parameter PS is always allowed. Furthermore, the normal functions of the buttons are also blocked: start
continuous cycle and defrost.
Def.: H2=1
H4: disable buzzer
Disables the operation of the buzzer.
Def.: H4 = 0 buzzer enabled. Available on PJ32S and X.
H5: identification code
Assigns the instrument an identification code that can be useful in identifying the various set-ups of the parameters used for
different models of machines. The value is display-only; it can be set using the serial connection (with the key or a supervisory
system).
A positive value should be set (from 1 to 99), if any parameter, including the set point, is modified using the keypad, the value set
becomes negative (with the same value); in this way any modifications to the parameters from the initial set-up can be checked.
Using the programming key, the minus sign - can be cancelled.
Def.: H5 = __ (value depending on the model). Available on all models. Always visible at level F.
Warning: the values from 0 to 31 are used by CAREL to identify the basic models.
t: parameter for expansion modules
Displays and modifies the parameters present on the optional RS485 serial modules and HACCP module.
The operating mode is described in the manuals for the optional modules.
Available on all models.
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