YOKOGAWA UT750, Instruction Manual

Page: 102 / 108

6-6
<Toc> <6. Function Block Diagram and Descriptions>
IM 05D01B02-41E 1st Edition : May 31,2000-00
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Remote Input
Remote input (INPUT3) can receive DC voltage signals. The controller is capable of bias-
ing, square root extraction, first-order lag computation (filtering), and ratio biasing on
remote input signals.
Each function can be set by the following parameters.
Setup Parameters
Function Parameter
Input selection IN3
Unit selection UNI3
Analog input range conversion RH3, RL3 (SDP3, SH3, SL3)
UTMD
UTMD
UTMD
IN
IN
IN
Analog input bias A.BS3
Square root extraction A.SR3, A.LC3
Analog input filter A.FL3
CMLP
CMLP
CMLP
AIN
AIN
AIN
Remote input selection RMS LOOP1 SP
Main menu Submenu
Note: Remote input signal can be received via communication. For details, refer to “GREEN Series Communication
Functions” (IM 05G01B02-01E).
Operating Parameters
Function Parameter
Remote setting filter RFL
Ratio bias calculation RT, RBS
Remote/Local switching MODE (REM/LOC1)
LP1
LP1
MODE
PAR
PAR
None
Main menu Submenu
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Contact Input
It is possible to select one out of eight setpoints by turning the four contact input signals ON
or OFF. This function is assigned to DI1 (contact input 1) to DI4 (contact input 4).
Contact
input
8
DI1 OFF
DI2 OFF
DI3 OFF
DI4 ON
Target setpoint number to be selected (SPNO) If all contact
inputs are set to
“OFF”, the
controller uses
the immediately
preceding target
setpoint.
7
ON
ON
ON
OFF
6
OFF
ON
ON
OFF
5
ON
OFF
ON
OFF
4
OFF
OFF
ON
OFF
3
ON
ON
OFF
OFF
2
OFF
ON
OFF
OFF
1
ON
OFF
OFF
OFF
For example, set contact input 2 (DI2) only to “ON” to change target setpoint 1 to 2. Set contact inputs 1 (DI1) and 2 (DI2) to
“ON” to select target setpoint 3.
Automatic (ON)/Manual (OFF) switching function is assigned to DI5 (contact input 5).
Manipulated output can be changed using the and keys in manual mode.
Run (OFF)/Stop (ON) switching function is assigned to DI6 (contact input 6). Preset output
value is output when the operation is stopped. PV input and alarms remain functioning as
normal.
Remote/Local mode switching function is assigned to DI7 (contact input 7). External target
setpoint can be set via remote input (INPUT3).