Tight Shut Open (TSHUT OP)
This allows the user to fully open valve at input values around 20 mA.
Adjustment of Tight Shut Open (TSHUT OP)
1. To adjust Tight Shut Open, scroll with <DOWN> at VALVE menu and select
TSHUT OP.
2. Push <ENTER> and *SHUT OP mode is displayed. In this mode users can set
stroke at the time of Tight Open. Initial setting is done as 100% which means
the TSHUT option is disabled. Adjust the value (ex: 95.0%) by pushing <UP>
or <DOWN> and save with <ENTER>. +SHUT OP is displayed.
3. Push <ESC> to exit TSHUT OP mode.
Tight Shut Close (TSHUT CL)
This allows the user to completely close valve at input values around 4 mA.
Adjustment of Tight Shut Close (TSHUT CL)
1. To adjust Tight Shut Close, scroll with <DOWN> at VALVE menu and select
TSHUT CL.
2. Push <ENTER> and *SHUT CL mode is displayed. In this mode users can set
stroke at the time of Tight Close. Initial setting is done as 0.3%. 0% means
the TSHUT option is disabled. Adjust the value (ex: 0.5%) by pushing <UP>
or <DOWN> and save with <ENTER>. +SHUT CL is displayed.
3. Push <ESC> to exit TSHUT CL mode.
Split Range Control (SPLIT)
This allows the user to control entire stroke with input signals of 4 to 20 mA, 4 to
12 mA or 12 to 20 mA.
Adjustment of Split Range (SPLIT)
1. To change Split Range, scroll with <DOWN> at VALVE menu and select
SPLIT.
2. Push <ENTER>. *SPLIT mode is displayed. The numbers on the LCD are the
range of current signal input to the positioner. 4.20 indicates 4-20 mA, 4.12
indicates 4-12 mA, and 12.20 indicates 12-20 mA setting.
3. Select desired Split Range and save with <ENTER>.
4. Push <ESC> to exit SPLIT mode.
VIEW Mode
This mode provides users with various information about the Series 185 and 285
positioners. In this mode, users can change the valve stroke types displayed on
LCD to % or numbers. Refer to the next table for information and description
displayed on VIEW mode.
1. Press and hold <ENTER> at RUN mode for 6 seconds and AUTO CAL message
appears.
2. Scroll with <DOWN> and select VIEW menu.
3. Push <ENTER> and check information using <UP> or <DOWN>.
4. Push <ESC> to exit VIEW mode.
Information Checked on VIEW Mode
Error and Warning Code
If there are any problems during Series 185 and 285 positioner operation, you can
check the error and warning code at VIEW mode as follows:
Error Code
This code is displayed when the Series 185 and 285 positioner control becomes
impossible. Code C, D applies.
YT-2500L
VERSION
HART V
POL AddR
bIAS VI
0Y 0d
FULL_OP
FULL_CL
VM NOR
Erro
VALUE I
ABS
Description
Positioner model
Main software version
HART Protocol version
Channel address that is used in HART Protocol
bIAS value for motor/piezo valve control. Can be adjusted only by
manufacturer.
Total used time duration. If a unit was used less than 1 minute, the
time does not accumulate.
Time elapsed for valve to fully open.
Time elapsed for valve to fully close.
Display type of valve stroke on LCD (either in percentage or value).
Display error code or warning message <Figure XX>.
Current I-Value. Can be adjusted only by manufacturer.
Display absolute resistance value.
Error Code
MT ERR L
MT ERR H
CHK AIR
RNG ERR
C
D
Code Description and Cause
Positioner is improperly installed.
Positioner lever is not parallel to
the ground at 50% point. Lever is
at lower position than actual 50%
point.
Positioner is improperly installed.
Positioner lever is not parallel to
the ground at 50% point. Lever is
at lower position than actual 50%
point.
Valve does not operate when
positioner receives “Full Open”
signal during auto calibration.
Operating angle is too small due
to improper mounting of
positioner.
Error 10% or above persists more
than 1 minute.
No valve movement.
Friction of valve is too large.
Setting pressure of actuator
changes.
I-Value reaches at maximum or
minimum limit point.
Friction of valve changes.
Setting pressure of actuator
changes.
Action
Re-install/mount the positioner.
Make sure the feedback lever
does not touch the stopper at both
0 and 100%.
Re-install/mount the positioner.
Make sure the feedback lever
does not touch the stopper at both
0 and 100%.
Check if supply pressure is stable
and appropriate.
Adjust bracket so the positioner
can be mounted closer to actuator.
Perform BAS calibration.
Check setting pressure of actuator
and set the pressure as
recommended.
Perform AUTO calibration.
Check setting pressure of actuator
and set the pressure as
recommended.
<ENTER>
6 seconds
<DOWN>
3 times
<ENTER>
<ENTER>
6 seconds
<DOWN>
3 times
<ENTER>
<ENTER>
6 seconds
<DOWN>
4 times
<ENTER>
<UP>/<DOWN>
then <ENTER>
<ESC>
3 times
<ESC> 3 times
then <ENTER>
<ENTER>
6 seconds
<DOWN>
5 times
<ENTER>
<UP>/<DOWN>
then <ENTER>
<ESC>
3 times
<ESC> 3 times
then <ENTER>
<ENTER>
4 times
<ENTER>
<UP>, <DOWN>
confirm the changes,
then <ESC>
<ESC>
COMPLETED
