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IN1L: Selects the low scale value for the Linear type input 1.
Hidden if: T/C or RTD type is selected for In1.
IN1L
IN1H: Selects the high scale value for the Linear type input 1.
Hidden if: T/C or RTD type is selected for IN1.
IN1H
How to use IN1L and IN1H :
If 4 - 20 mA is selected for IN1,let SL specifies the input signal low ( ie. 4 mA ),
SH specifies the input signal high ( ie. 20 mA ), S specifies the current input
signal value, the conversion curve of the process value is shown as follows :
process value
IN1H
Figure 3.1
Conversion Curve for Linear
Type Process Value
PV1
IN1L
SL S SH
input signal
Formula : PV1 = IN1L + ( IN1H IN1L )
S SL
SH SL
Example : A 4-20 mA current loop pressure transducer with range 0 - 15 kg/cm 2
is connected to input 1, then perform the following setup :
IN1 = 4 - 20
IN1L = 0.0
IN1U = PU
IN1H = 15.0
DP1 = 1-DP
Of course, you may select other value for DP1 to alter the resolution.
3 2 OUT1 & OUT2 Types
01TY: Selects the signal type for Output 1.
The selection should be consistent with the output 1 module installed.
The available output 1 signal types are :
RELY : Mechanical relay
SSRD : Pulsed voltage output to drive SSR
4 - 20 : 4 - 20 mA linear current output
0 - 20 : 0 - 20 mA linear current output
0 - 1V : 0 - 1V linear voltage output
0 - 5V : 0 - 5V linear voltage output
0 - 5V : 1 - 5V linear voltage output
0 - 10V : 0 - 10V linear voltage
01TY
02TY
O2TY : Selects the signal type for Output 2.
The selection should be consistent with the output 2 module installed.
The available output 2 signal types are the same as for O1TY.
The range for linear current or voltage may not be very accurate. For 0 % output,
the value for 4 - 20 mA may be 3.8 mA to 4 mA; while for 100 % output, the value
for 4 - 20 mA may be 20 mA to 21 mA. However, this deviation will not degrade
the control performance at all.
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