YOKOGAWA NEW GREEN SERIES, User Manual

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<Toc> <2. Initial Settings>
2-11
IM 05D01C12-41E 4th Edition: May 31, 2006-00
2.5 Calibrating Valve Position
(for a Position Proportional
Controller Only)
The following operation describes a procedure of inputting a feedback signal from a control
valve to calibrate the full closed and full open positions of the valve automatically. To cali-
brate the valve position, you need to carry out wire connections and bring the controller into
manual mode. For connections, see “1.5 Terminal Wiring Diagrams” and for entering the
manual mode, see “3.8 Switching between AUTO and MAN.”
1.
Bring the operating display into view
(display appears at power on).
P V
AL1 2 3 4
M A N
R E M
S E T / E N T
A / M
MAN lamp
ON.
Displays
target setpoint-1
“1.SP”.
Displays PV.
2.
Press the
S E T / E N T
key for more than 3 sec-
onds to call up the menu “OP.PA”.
PV
AL1 2 3 4
M A N
R E M
S E T / E N T
A / M
Displays
symbol “D-U”.
Displays
menu “OP.PA”.
3.
Press the key once to display the
menu “STUP”.
P V
AL1 2 3 4
M A N
R E M
S E T / E N T
A / M
Displays
menu “STUP”.
4.
Press the
S E T / E N T
key once to display the
menu “SP”.
P V
AL1 2 3 4
M A N
R E M
S E T / E N T
A / M
Displays
menu “SP”.
5.
Press the key twice to display menu
“VALV”.
P V
AL1 2 3 4
M A N
R E M
S E T / E N T
A / M
Displays
menu “VALV”.
6.
Press the S E T / E N T key once to display the
parameter “V.AT”.
P V
AL1 2 3 4
M A N
R E M
S E T / E N T
A / M
Displays
parameter
“V.AT”.
7.
Press the key once to display “ON”.
P V
AL1 2 3 4
M A N
R E M
S E T / E N T
A / M
Blinks during
change.
8.
Press the
S E T / E N T
key once. The controller
automatically calibrates the valve position
(fully open or closed).
P V
AL1 2 3 4
M A N
R E M
S E T / E N T
A / M