Smart Positioner
YT-3700 / 3750
Product Manual
Ver. 1.03
96
8.14
Status and Alarm Code
The status and alarm codes can be displayed on the LCD screen as required. Refer to the table
below to check the status and alarm codes, and then take the appropriate action.(See 8.5
Configuration and Operation)
Alarm
Code
Abbreviation
Status / Alarm name
Description or proposed actions
0
LOPA
Local Operating Active
It indicates the positioner is being operated by manual
operation.
1
CALR
Auto Calibration
Running
It is active when auto-calibration is in progress.
2
DIGR
Diagnostics Running
It is active when diagnosis test such as Step Response
Test, Stroke Time Test, and Trace Test is in progress.
3
PSTR
PST Running
It is active when Partial Stroke Test is in progress.
4
PSNH
Position Sensor Hi
Limit
Position sensor is out of range. Check the installed state if
it happened during operation.
5
PSNL
Position Sensor Lo
Limit
Position sensor is out of range. Check the installed state if
it happened during operation.
6
NVMF
Critical NVM Defect
It is active if there is a failure associated with NVM
(Nonvolatile Memory). Initialize the positioner using Default
function and then AUTO 2 calibration. If it is repeated,
replace the electronics board by contacting the
manufacturer or manufacturer’s representative.
7
NVMW
Non-Critical NVM
Defect
8
CYCC
Cycle Count Limit
It is active if the accumulated cycle counter exceeds Cycle
Count Limit. Check the condition of the valve and then
determine if it is replaced or not. If there is no problem with
the valve, increase the Cycle Count Limit.
9
TVLA
Travel Accumulator
Limit
It is active if the travel accumulator exceeds Travel
Accumulator Limit. Check the condition of the valve and
then determine if it is replaced or not. If there is no problem
with the valve, increase the Travel Accumulator Limit.
10
OPRC
Operating Count Limit
It is active if the number of operations for I/P converter
exceeds has exceeded Operating Count Limit. Determine if
the setting is appropriate or the I/P converter is replaced or
not.
11
TMPH
Temperature Hi Limit
It is active if internal temperature exceeds Temperature Hi
Limit. If the set temperature exceeds the maximum
temperature allowed by the product, the product may not
operate if the ambient temperature around the positioner is
not lowered.
12
TMPL
Temperature Lo Limit
It is active if internal temperature is lower than
Temperature Lo Limit. If the set temperature is lower than
the minimum temperature allowed by the product, the
product may not operate if the ambient temperature around
the positioner is not raised.
