Parameters - Description; Parameters Of The Plug-In Instrument; Haccp Module Parameters - Carel plug-in User Manual

8.3.4 Parameters - description

The HACCP module uses some parameters from the plug-in instrument and its own parameter for the alarm recognition algorithm,
and produces a set of variables for recording the HA and HF events if these occur. It also features parameters for setting the clock
and entering up to eight defrost events at programmed times.
All the parameters can be displayed and modified using the
display and the buttons on the connected plug-in instrument. The
parameters can be accessed using the t parameter on the plug-in
instrument; when displaying the parameters some segments of
the left-most digit are used as indicated in the figure.
The display and modification procedures are the same indicated
in the paragraph on accessing and modifying the t parameters of
the RS485 serial module.

8.3.5 Parameters of the plug-in instrument

parameters
SET control set point
AH high temperature alarm threshold
temperature alarm delay time
Ad
SET: value of the control set point of the plug-in instrument
This is read directly from the value set on the instrument.
AH: value of the high temperature alarm threshold
This is read directly from the value set on the instrument. Together with the set point it determines the value of the temperature
threshold for the detection of alarms HA and HF (respectively high temperature and power failure alarms).
Threshold = SET+AH.
Warning: AH = 0 disables the detection of the alarms.
Ad: Value of the temperature alarm detection delay
This is read directly from the value set on the instrument. It is used together with parameter tr in the HACCP module to determine
the value of the delay in recognising the HA alarm event.

8.3.6 HACCP module parameters

left segment code
tu
th
t'
tr
to

t1-8

t1-8

t1-8
tu: day of the week of the internal clock
Displays/Sets the day of the week for the clock. The possible values are from 1 to 7, corresponding to Monday, ..., Sunday in
order.
th: hours of the internal clock
Displays/Sets the current hours for the clock. Values from 0 to 23.
t': minutes of the internal clock
Displays/Sets the minutes for the clock. Values from 0 to 59.
The setting of the internal clock is important for the correct recording of the HA and HF alarms, the times of which are also
recorded.
Cod. +030221881 rel. 1.5 - 26/10/10
parameter description
day of the week of the internal clock
hour of the internal clock
minutes of the internal clock
HA alarm delay
global reset of alarms HA and HF
defrost day of the week
defrost hours
defrost minutes
1
4
2
5
3
type min
-
F
C
min max uom
1 7
0 23 hours
0 59 min
0 127 min
0 1
0 10
0 23 hours
0 59 min
44
Fig. 8.3.4.1
max uom
C/F
-50 127
C/F
0 127
0 199 min.
Tab. 8.3.5.1
def
- 1
0
0
0
- 0
- 0
0
0
Tab. 8.3.6.1
plug-in
def
4
0
0