YOKOGAWA UT520 User Manual

<Toc> < 5. Parameters >
5-25
IM 05D01C02-41E 3rd Edition: May 31, 2006-00
● Communication Parameters
Located in: Main menu =
(UTMD)
; Submenu =
(R485)
Parameter
Symbol
Name of Parameter Setting Range and Description Initial Value User
Setting
Target Item
in CD-ROM
0
(PSL)
0
(RP.T)
9600 (4)
Communication
functions
EVEN (1)
1
8
1
(BPS)
(PRI)
(STP)
(DLN)
(ADR)
Protocol selection
Baud rate
Parity
Stop bit
Data length
Address
Minimum response time
600 (0), 1200 (1), 2400 (2), 4800 (3), 9600 (4) (bps)
NONE (0): None
EVEN (1): Even
ODD (2): Odd
1, 2
7, 8;
7 is fixed for MODBUS (ASCII)
8 is fixed for MODBUS (RTU), Ladder
1 to 99
However, the maximum number of stations
connectable is 31.
0 to 10 ( 10 ms)
0: PC link communication
1: PC link communication (with sum check)
2: Ladder communication
3: Coordinated master station
4: Coordinated slave station
7: MODBUS (ASCII)
8: MODBUS (RTU)
10: Coordinated slave station (loop-1 mode)
11: Coordinated slave station (loop-2 mode)
(10, 11: When the master station is in dual-loop
control, the slave station selects either of the loops
to be controlled.)
● Motor-driven Valve Calibration-related Parameters (Displayed for Position
Proportional Controllers)
Located in: Main menu =
(UTMD)
; Submenu =
(VALV)
Parameter
Symbol
Name of Parameter Setting Range and Description Initial Value User
Setting
Target Item
in CD-ROM
0
0
OFF (0)
(V.RS)
(V.L)
(V.H)
(TR.T)
(V.MD)
(V.AT)
Valve position setting
reset
The parameters V.RS, V.L and V.H are designed for
manual adjustment of valve positions.
Setting V.RS to 1 resets the valve adjustment
settings and causes the indication “V.RS” to blink.
Fully-closed valve
position setting
Pressing the SET/ENT key with valve position
set to the fully-closed position causes the
adjusted value to be stored.
Pressing the SET/ENT key with valve position
set to the fully-opened position causes the
adjusted value to be stored. When V.H.
adjustment is complete, V.H. stops blinking.
Undefined
UndefinedFully-opened valve
position setting
Valve traveling time 5 to 300 sec.
Used to operate a valve according to the estimated
valve position. Set the time required for the valve to
open fully from a state of being fully closed. Confirm
the valve traveling time by consulting the datasheet of
the valve’s specifications.
The valve traveling time is only effective when Valve
Adjustment Mode (V.MD) is set to 1 or 2.
60 sec.
Valve adjusting mode
0: Valve position feedback type
1: Valve position feedback type (moves to the estimating
type if a valve input error or burnout occurs.)
2: Valve position estimating type
Automatic valve
adjustment
Automatically adjusts the fully-closed and fully-opened
positions of a valve. When this function is used, there is no
need for adjustment using the parameters V.RS, V.L and V.H.
OFF (0): -
ON (1): Start automatic adjustment
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YOKOGAWA UT520 Specifications

General

Brand	YOKOGAWA
Model	UT520
Category	Controller
Language	English