Samson 3730-3 ESD, Монтаж и эксплуатация

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test parameter indicates the time that re-
mains until the next test is started.
The positioner alternately displays
“ESd”, the
Manual reference variable w,
and “MAN“.
At the end of the test, the Status of ESD test
indicates whether the partial stroke test has
been completed successfully or not (see sec-
tion 2.2 “Analyzing measured data“).
2.1.1 On-site operation
Note!
Parameters can only be changed in
positioners in ESD version after entering the
enabling ESD code (Code 3). You can only
change the reading direction (Code 2) if the
ESD code has not been entered.
The described settings can be adjusted di-
rectly on the positioner on site:
4
Entering the ESD code using Code 3
4
Selecting the ESD Man/ESD Auto oper-
ating mode using Code 0
The following modifications can only be per-
formed when the positioner is in ESD Man
operating mode:
4
Setting the reference variable
Manual w
using Code 1
4
Setting the ESD parameters using
Code 49 (see section 2.5)
Starting the partial stroke test:
1. Select operating mode ESD using
Code 0.
2. In operating mode ESD, select ESD Man
mode, holding down the rotary
pushbutton until the countdown has
elapsed. The test will start.
Note!
Section 2.5 lists the available ESD pa-
rameters.
2.2 Analyzing measured data
TROVIS-VIEW 3:
[Diagnosis > Emergency
Shut Down > Analysis of measured data]
Analyses of the last three partial stroke tests
completed are saved in the positioner with a
time stamp.
If the test has not been completed success-
fully, the reason why the test was cancelled
is indicated under “Maintenance alarm“.
The positioner indicates “ESd tEst FAIL“. Pos-
sible reasons for cancellation depending on
the defined cancellation conditions are:
4
x cancellation: The valve position fell be-
low the
x control value.
EB 8388-1 EN
13
ESD functions