not displayed, this happens because the instrument is predisposed to
automatically not visualise the unnecessary parameters.
6 - DESCRIPTION OF PARAMETERS
Here following are described all the instrument parameters; pls. note that
some of them could do not appear or because are according to the kind of
used instrument or because are automatically not qualified, as they're not
necessary.
FIRST LEVEL PARAMETERS
SEtP
- SET POINT : Regulation value of Set Point
HSEt
- SET POINT HYSTERESIS ( ON/OFF CONTROL MODE) :
Symmetric semi-band relative to the Set Point, which decides the C1
outputs activation and deactivation, when the regulation mode is ON/OFF.
This parameter do appear just whether the programmed regulation is
ON/OFF type ("Con1" = "OnOF").
PASS
- PASSWORD REQUEST : Used to set the password that permits to
accede to the second level parameters.
FIRST OR SECOND LEVEL PARAMETERS
The following parameters are normally present in the first level, but can be
moved in the second level by means of parameter "ALPr" = "yES"
.
AL1
- ALARM A1 THRESHOLD (MINIMUM OR MAXIMUM ALARM) :
A1 alarm threshold for minimum or maximum alarms.
AL1L
- MINIMUM ALARM A1 THRESHOLD (WINDOW ALARM) : A1
alarm threshold working as minimum alarm when it's set a window alarm
type.
AL1H
- MAXIMUM ALARM A1 THRESHOLD (WINDOW ALARM)
: A1 alarm threshold working as maximum alarm when it's set a window
alarm type.
HAL1
- ALARM A1 HYSTERESIS : Asymmetric semi-band referred to A1
alarm value, that establish the deactivation value of A1 alarm.
AL2
- ALARM A2 THRESHOLD (MINIMUM OR MAXIMUM ALARM) :
Equal to "AL1", but referred to A2 alarm.
AL2L
- MINIMUM ALARM A2 THRESHOLD (WINDOW ALARM) :
Equal to "AL1L", but referred to AL2 alarm.
AL2H
- MAXIMUM ALARM A2 THRESHOLD (WINDOW ALARM) :
Equal to "AL1H", but referred to AL2 alarm.
HAL2
- ALARM A2 HYSTERESIS : Equal to "HAL1", but referred to AL2
alarm.
ALHb
- HEATER BREAK ALARM THRESHOLD :
Activation set of
Heater Break alarm.
SECOND LEVEL PARAMETERS
rL1
- ALARM A1 OPERATION MODE : Permits to decide the alarm A1
functioning mode, trough the setting of a code, composed by 4 figures (see
alarm output functioning).
rL2
- ALARM A2 OPERATION MODE : Equal to "rL1", but referred to
AL2 alarm.
rLHb
- OUTPUT HB LOGIC MODE : Permits to establish the Heater
Break alarm functioning mode, setting the output rest state ("nO" =
normally opened, "nC" = normally closed)
FAIL
- ALARM ON FOR ERROR INSTRUMENT :Permits to decide in
which error conditions no alarm has to be activated ("no"), has to be
activated A1 alarm ("rL1"), has to be activated A2 alarm ("rL2") or both
("rL12")
.
dAL1
- DISCONNECTION OF ALARM A1 : Permits to disable A1 alarm
output ("yES"). Disabling the output, in alarm conditions, the alarm led
will flash and the output will not be activated. Otherwise ("no") the output
will function normally.
dAL2
- DISCONNECTION OF ALARM A2 : Equal to "dAL1", but referred
to AL2 alarm.
ALPr
- ALARM PROGRAMMING AT FIRST OR SECOND LEVEL
PARAMETERS : Permits to make visible the alarm setting parameters of
the first ("no") or second ("yES") level.
SPLL
- LOW/MINIMUM SET POINT : Minimum possible Set Point value
or lower limit of Set point.
SPHL
- HIGH/MAXIMUM SET POINT : Maximum possible Set Point
value or higher limit of Set point.
Con1
- CONTROL MODE : Permits to select one of the possible regulation
mode offered by the instrument : ON/OFF ("OnOF") or PID ("Pid"). This
parameter is not visible in the instruments with 2 regulation outputs (C1
and C2) because in these models the only possible regulation is PID mode
for both outputs.
Func -
OUTPUT C1 OPERATING MODE : Permits to decide if C1
regulation mode has to control an Heating process ("HEAt") or a Cooling
process ("CooL"). In the instruments with 2 regulation outputs (C1 and
C2) this parameter automatically determines the C2 output opposite action
to the one set at "Func" parameter.
Auto
- AUTOTUNING : Parameter used to carry on an Autotuning cycle,
that permits the automatic tune of the right PID regulation parameters. It's
possible effect the Autotuning at the real Set Point value ("SP") or at a
reduced value, equal to 70% of the Set Point ("LoSP"). If it's not desired to
have the Autotuning, set "no".
Pb
- PROPORTIONAL BAND : Band width around Set Point on which
works the proportional regulation.
Int
- INTEGRAL TIME : Integral time to be set in the PID regulation
algorithm, expressed in seconds.
dEr
- DERIVATIVE TIME : Derivative time to be set in the PID regulation
algorithm, expressed in seconds.
tcr1
- OUTPUT C1 CYCLE TIME : Cycle time referred to C1 output , when
intervenes the proportional regulation on PID regulation mode, expressed
in seconds.
Prat
- C2 / C1 POWER RATIO : Setting of power ratio between the
element controlled by C2 output (ex, Cooler) and power of the element
controlled by C1 output (ex. Heater) when the instrument has both C1 and
C2 regulation outputs.
tcr2
- OUTPUT C2 CYCLE TIME : Cycle time referred to C2 output , when
intervenes the proportional regulation on PID regulation mode, expressed
in seconds.
rS
- MANUAL RESET : Proportional band positioning referred to the Set
Point, expressed in percentage value.
Unit
- UNIT OF MEASUREMENT : Permits to decide if the visualisation is
expressed in Degree Centigrade ("C"), Fahrenheit ("F") or Kelvin ("AbS").
Pls. note : modifying this parameter results modified the display
visualisation but not the Set Point and all the other parameters expressing
the temperature values, and therefore they have to be manually modified.
For example, if Set Point = 50°C and the unit of measurement is changed
into °F, Set Point will be 50 °F.
SEnS
- INPUT PROBE : Permits to select the kind of input probe :
thermocouples J ("J"), K ("CrAl"), R ("r")
,
S ("S"), T ("t") or
thermoresistances PT100 with no decimal point visualisation ("Pt1") or
with decimal point visualisation ("Pt2")
OFFt
- CALIBRATION : Positive or negative Offset that is addicted to the
probe detected value , first than the visualisation, on which is depending as
well the functioning regulation. This parameter can be necessary to
recalibrate the instrument.
FiLt
- INPUT DIGITAL FILTER CONSTANT : Time constant of the
software filter, referred to the input value measurement, expressed in
seconds.
6.1 - PARAMETERS TABLES
FIRST LEVEL PARAMETERS
TABLE
0
0.0 ... 100.0
Heater Break alarm threshold
ALHb
1
0 ... 9999
0.0 ... 999.9
Alarm A2 hysteresis
HAL2
0
-999 ... 9999
-99.9 ... 999.9
Maximum Alarm A2 threshold
(window alarm)
AL2H
0
-999 ... 9999
-99.9 ... 999.9
Minimum Alarm A2 threshold
(window alarm)
AL2L
0
-999 ... 9999
-99.9 ... 999.9
Alarm A2 threshold
(minimum or maximum alarm)
AL2
1
0 ... 9999
0.0 ... 999.9
Alarm A1 hysteresis
HAL1
0
-999 ... 9999
-99.9 ... 999.9
Maximum Alarm A1
threshold(window alarm)
AL1H
0
-999 ... 9999
-99.9 ... 999.9
Minimum Alarm A1 threshold
(window alarm)
AL1L
0
-999 ... 9999
-99.9 ... 999.9
Alarm A1 threshold
(minimum or maximum alarm)
AL1
1
0 ... 9999
0.0 ... 999.9
Set point hysteresis ( ON/OFF
control mode)
HSEt
0
SPLL ÷ SPHL
Set point
SEtP
Notes
Def.
Range
Description
Par.
TECNOLOGIC - THP 98
USER MANUAL (I - GB) - Vr. 01 - ISTR 00372 - PAG. 11
