YOKOGAWA UP35A, User Manual

Page: 224 / 412

10-23
IM 05P02D41-01EN
Output (Control and Retransmission) Functions
10
10.14.1 Setting Valve Operation Mode
Description
Position proportional control monitors the control output signals and the feedback signals
from the control valve and regulates to keep the valve opening and the control output
signal in agreement.
Position proportional control (output) operation mode has feedback type and estimating
type.
Setting Details
Parameter
symbol
Name
Display
level
Setting range Menu symbol
V.MOD
Valve adjusting
mode
STD
0: Valve position feedback type
1: Valve position feedback type
(moves to the estimating type if
a feedback input error or break
occurs.)
2: Valve position estimating type
OUT
10.14.2 Adjusting Valve Position Automatically
Description
The fully-closed and fully-opened positions of a valve can be set automatically by the
feedback input signal from a valve.
The following describes the procedure of adjusting the valve position automatically.
(1) Verify that the wirings are correct.
(2) Set the operation mode to MAN.
(3) Set the automatic valve position adjustment (V.AT) to ON. (V.AT blinks during the
automatic adjustment.)
(4) When the adjustment is completed, V.AT returns to OFF.
When the adjustment fails, VAT.E appears on PV display.
Setting Details
Parameter
symbol
Name
Display
level
Setting range Menu symbol
V.AT
Automatic
valve position
adjustment
EASY
OFF: Stop automatic adjustment
ON: Start automatic adjustment
OUT
10.14 Adjusting Motor-operated Valve Position (Position Proportional Output)