21
80415F_MSW_GFX4-IR_05-2019_ENG
AUXILIARY ANALOG INPUT (LIN/TC)
The GFX4-IR has 4 inputs defined as auxiliary (IN5 for zone 1, IN6 for zone 2, IN7 for zone 3, IN8 for zone 4) to which
TC or linear temperature sensors can be connected.
The presence of these inputs is optional and, for model GFX4-IR-x-x-4-x-x is defined by the order code.
The input value, saved in variable In.2, can be read and used to activate the alarm signals assigned to it.
When an auxiliary input is present, you have to define the following parameters:
- sensor type (AI.2);
- its function (tP.2);
- decimal point position (dP.2);
- scale limits (HS.2 – LS.2);
- offset correction value (oFS.2).
If the sensor is a thermocouple, the minimum and maximum limits can be defined in the specific scale of the sensor
used. The range of values settable for alarm setpoints depends on these limits.
There is also a digital filter (Flt.2) that can be used to reduce noise on the input signal.
194
AI.2
R/W
Select type of auxiliary sensor input
0
Type of probe
Without dec. point
With dec. point
or sensor
0
TC J °C
0/1000
0.0/999.9
1
TC J °F
32/1832
32.0/999.9
2
TC K °C
0/1300
0.0/999.9
3
TC K °F
32/2372
32.0/999.9
4
TC R °C
0/1750
0.0/999.9
5
TC R °F
32/3182
32.0/999.9
6
TC S °C
0/1750
0.0/999.9
7
TC S ° F
32/3182
32.0/999.9
8
TC T °C
-200/400
-199.9/400.0
9
TC T °F
-328/752
-199.9/752.0
34
0...60 mV
-1999/9999
-199.9/999.9
35
0...60 mV
Custom linearization
Custom linearization
36
12...60 mV
-1999/9999
-199.9/999.9
37
12...60 mV
Custom linearization
Custom linearization
99 Input off
Auxiliary inputs sensors table
181
tp.2
R/W
Definition of auxiliary analog input
function
Auxiliary LIMITS FOR SETTING the LS.2 and HS.2
input function
min
max
0 None
-1999
9999
1 Remote setpoint
Absolute Lo.S, Absolute Hi.S,
deviation -999
dev999
2 Manual analog remote
-100.0%
+100.0%
3 Reset analog power
-100.0%
+100.0%
10 Remote manual analog
from main input
0
Table of auxiliary input functions
(*)
(*)
(**)
603
XS.2
R/W
Maximum limit of auxiliary input scale
Min...max input scale selected in AI.2 and tP.2
1000
404
LS.2
R/W
Minimum limit of auxiliary input scale
Min...max input scale selected in AI.2 and tP.2
0
605
oFS.2
R/W
Offset for auxiliary input correction
-999 ...999
Scale points
0
Scale limits
Setting the offset
(*) see: Settings – Control Setpoint
(**) see: Controls –PID Parameters
Calibrate the UCA inputs by means of the GFX-
OP terminal.
The procedure is described in the GFX-OP
manual.
677
dP.2
R/W
Decimal point
position for the auxiliary
input scale
Format
0
xxxx
1
xxx.x
2
xx.xx (*)
3
x.xxx (*)
(*) not available for TC probes
Decimal point table
0
Specifies the number of decimal figures used to represent the input signal value: for
example, 875.4 (°C) with dP.S: = 1
(*)
