
SS3L / SS3R Series
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49
11.5.9.I
[POLL] – HART Communication Polling Address (default: 0)
POLL
0
0 ~ 15
This is to select one of HART communication polling address (0 ~ 15) on site. The default address
is “0”.
As an unexpected problem can happens during communication, try to select after
disconnecting HART communication.
11.5.9.J
[PST] – Partial Stroke Testing (default: OFF)
PST
ON
TITL
SET
RAMP
RESP
OFF
This is to move the valve periodically regardless of input signals and check the valve status.
- to set the TEST time interval (default: ‘0024’ – 24 hours)
- Setting of ‘0000’ shows the PST working status every 1 minute.
- to set the moving point by % during TEST (default: 10%)
- Valve position > 50% : move to the deceasing direction
- Valve position < 50% : move to the increasing direction
- to adjust a moving range per second (default: 1.0%/sec)
- One of 1.0, 0.5, 0.25, 0.12, or 0.06%/sec can be selected.
- to adjust a waiting time that the valve follows after the test signal (default:
‘10’ seconds)
Even though ‘Good’ is shown, if RESP is set too long, the judgment point will not be good for the
next comparison. Also, if ‘Bad’ is shown, RESP is set too low. Adjust RESP.
to show that there is no problem if the valve reaches Dead zone of the set
position.
to show that it is necessary to check the valve status if the valve fails to
reach Dead zone of the set position.
- It is possible to prevent the valve from getting
stuck in the long term.
- Do not activate the PST function if it is not
intended to use.
- The PST function is deactivated after auto-
calibration.
Time
PV%
Partial stroke test signal
“Good” valve action
RAMP
SET
RESP
“Bad” valve action
Note that the PST function (Partial Stroke Testing) is loaded at the factory on demand
only when requested.