-99.9 ... 999.9
-9.99 ... 99.99
-0.999 ... 9.999
-999 ... 9999
0 ... 50 mV (0_50)
0/4..20 mA, 0/1..5 V,
0/2..10 V (gener.)
-99.9 ... 630.0 °C
-99.9 ... 999.9 °F
-99.9 ... 504.0 °R
-200 ... 630 °C
-328 ... 1166 °F
-160 ... 504 °R
Pt100 JIS
(Pt2)
-99.9 ... 850.0 °C
-99.9 ... 999.9 °F
-99.9 ... 680.0 °R
-200 ... 850 °C
-328 ... 1562 °F
-160 ... 680 °R
RTD Pt100 IEC
(Pt1)
-99.9 ... 600.0 °C
-99.9 ... 999.9 °F
-99.9 ... 480.0 °R
-200 ... 600 °C
-328 ... 1112 °F
-160 ... 480 °R
tc U
(u)
-99.9 ... 900.0 °C
-99.9 ... 999.9 °F
-99.9 ... 720.0 °R
-150 ... 900 °C
-238 ... 1652 °F
-120 ... 720 °R
tc L
(L)
3 - INSTALLATION
MECHANICAL MOUNTING
:
The instrument, in DIN case 48 x 48 mm,
is designed for panel mounting. Make an hole 45,5 x 45,5 mm and insert
the instrument, fixing it with the provided special bracket. We recommend
to mount the gasket to obtain an IP 54 front protection. Avoid to place the
instrument in areas with humidity or dirt. Connect the instrument as far as
possible from source of electromagnetic disturbances so as motors, power
relays, relays, electrovalves,etc. The instrument is removable from its
housing by the front side : is recommended to disconnect the power supply
from the instrument when is necessary to do this operation.
ELECTRICAL CONNECTIONS
: Carry out the electrical wiring
connecting only one wire for each terminal , according to the following
diagram, check that the power supply is the same as indicated on the
instrument and the loads current is not upper than the maximum current
admitted. The instrument, being a built in equipment with permanent
connection into a cabinet, is not furnished with internal device protecting
from overcurrent : it's recommended , therefore, to properly protect all the
electric circuits connected to the instrument, with devices (ex. fuses)
proportionate to the circulating currents. It's strongly recommended to use
cables with proper insulation, according to the working voltages and
temperatures. Furthermore, the input cable of the probe has to be kept
separate from line voltage wiring. If the input cable of the probe is
screened, it has to be connected on the ground with only one side. It is
advisable to check that the parameters are those desired before connecting
the outputs to the actuators so as to avoid malfunctioning . Whenever a
failure of the instrument could cause dangerous or damaging situations, it
should be kept in mind that the plant has to be provided with additional
devices to ensure the safety.
4 - OPERATING MODE
4.1 - CONTROL STATE
The controller can assume 3 different states : automatic control
(rEG),
deactivated control
(OFF)
and manual control
(OPLO).
The instrument is able to switch from one state to the other :
- From the keyboard, selecting the desired state, into "SEL" menu
- Through the digital auxiliary inputs AUXIN, if the input function (par.
"rEar") allows it.
-
Automatically (into "OFF" in case of anomaly conditions and into "rEG"
at the end of Autotuning execution.)
At the switching on, the instrument goes automatically to the state it had in
the moment of the switching off.
AUTOMATIC CONTROL (rEG)
The automatic control state is the normal functioning state of the
regulator.
In the automatic control state, on the upper display is visualised the
process variable measured, while on the lower display is visualised the
active Set point. During the automatic control it's possible to visualise the
control power on the lower display pushing key "UP" (if the par. "SPOL"
is not programmed as "yES")
DEACTIVATED CONTROL (OFF)
The instrument can goes into "OFF" state or intentionally or automatically
in case of anomaly conditions. When it's in "OFF" state, the control and
the relatives outputs are not working. The alarms are activated or
deactivated depending on what programmed on par. "ALno". In the "OFF"
state, on the upper display is visualised the process variable measured,
while on the lower display is visualised the writing "OFF" flashing.
MANUAL CONTROL (OPLO)
It's possible to manually program the control percentage given by the
output regulator. To active this possibility it's necessary, first of all, to
program par. "EnOL" as "yES". To start the manual control it's necessary
then to get into the "SEL" menu, select "OPLO" and push "P" key. Now on
the upper display will flash led "MAN", while on the lower display will
appear the control percentage given by the output on that moment. This
power percentage can be selected, as any other parameter, using the
frontal keys placed on the front panel. When the value is the desired one,
just push "P" key so that the selected power percentage will be supplied to
the load. To turn the regulator into the automatic control, select par.
"rEG" in "SEL" menu. When the
instrument is used to control motorised
actuators, the manual control happen in the following way :
- Pushing "LEFT" key is controllable the actuator opening
- Pushing "UP" key is controllable the actuator closing
During all the time of the manual control activation, on the lower display
appears the writing 3Pt or "OPEn" while is pushed "LEFT" key or "CLoS"
while is pushed "UP" key.
4.2 - ACTIVE SET POINT SELECTION
The instrument permits to store up to 4 different controlling Set point and
then to select which one has to be active. The maximum Set point number is
determined by the par. "nSP" in "SEL" menu.
The Set point to be activated
can be selected :
- From the keyboard through parameter "SPn", in "SEL" menu
- From the keyboard through "Up" key if par. "SPOL" = "yES"
- Through the digital auxiliary inputs AUXIN, if the input function (par.
"rEar") allows it.
When "nSP" = 1, par. "SPn" doesn't appear in "SEL" menu.
In "OPEr" menu, do appear Set point "SEt1", "SEt2", "SEt3", "SEt4",
depending on the maximum Set point number selected on par. "nSP".
Note
: in all the following examples the Set point is indicated as "SEt1",
anyway the instrument will behave depending on the Set point selected as
active.
4.3 - CONFIGURATION OF THE MEASURE INPUT
The instruments configured in factory, with temperature sensor input,
accept signals coming from thermocouples B, E, J, K, L, N, R, S T, U, from
thermoresistances Pt100 IEC and PT100 JIS, and furthermore from mV
signals (0..50). The choice between these kind of input types is possible by
means of par. "SEnS". If it's chosen a thermocouple, it's possible to
eliminate the automatic compensation of the cold junction temperature
(par. "ECJC" = "yES"). In this case it's necessary to set on par. "tCJC" the
temperature on which is subjected the cold junction. In case it's chosen the
TECNOLOGIC - THP 84
USER MANUAL (I - GB) - Vr. 02 - ISTR 00132 - PAG. 13
