Positioner Functions (No Display Required); Live Manual Tuning (Adjusting The Gain); Local Control Of Valve Position; Command Source Reset - Flowserve Logix 520MD+ User Instructions

9 POSITIONER FUNCTIONS
(No Display Required)
The following features can be performed using the local interface. No
display is required for these features. Additional features are offered
with the use of a display, Handheld or DTM.
NOTE: In order to prevent unintentional adjustments of the con-
figuration, tuning, or control of the valve, the Tamper Lock feature
may be used. This is set in the DTM and disables the buttons and
menus except for the ability to view the status of the positioner.
When locked, the positioner may be temporarily unlocked by
entering a PIN. (An LCD is required to enter the PIN.) Or, the
positioner can be unlocked from the DTM.

9.1 Live Manual Tuning (Adjusting the Gain)

Use the Selectable GAIN Switch to adjust the gain at any time during
operation. This adjustment takes effect immediately. For faster response
select settings above "E" (F-J). For more stable response, select set-
tings below "E" (B-D). See Figure 36: Local User Interface on page 34.

9.2 Local Control Of Valve Position

To manually adjust the position of the valve regardless of the input
command (analog or digital), press and hold the
,BACK buttons for about 3 seconds. The
then be used to position the valve. While in this mode the LED's will
flash a GRRY (green-red-red-yellow) sequence. To exit the local control
mode and return to normal operation, briefly press the .ACCEPT/
QUICK-CAL button.
a
CAUTION: When operating using local control of the valve, the
valve will not respond to external commands. Notify proper
personnel that the valve will not respond to remote command
changes, and make sure the valve is properly isolated.

9.3 Command Source Reset

Performing a command source reset will reset the command source to
analog if it has been inadvertently left in digital mode. This is done by
holding down both the
the .ACCEPT/QUICK-CAL button.

9.4 Factory Reset

To perform a factory reset, hold .ACCEPT/QUICK-CAL button while
applying power. All of the internal variables including calibration will
be reset to factory defaults. The positioner must be re-calibrated after
38
a factory reset. Tag names and other user configured limits, alarm set-
tings, and valve information will also be lost and need to be restored. A
factory reset will always reset the command source to analog 4-20 mA.
Logix
Up,
Up, down buttons can
Up and Down buttons, then briefly pressing
520MD+ and 510+ Digital Positioners FCD LGENIM0105-15-AQ – 05/16
®
NOTE: Once the Multi-Function Card (MFC) type has been con-
figured, the type selection will still remain after a factory reset.
a
CAUTION: Performing a factory reset may result in the inability
to operate the valve until reconfigured properly. Notify proper
personnel that the valve may stroke, and make sure the valve is
properly isolated.

9.5 Viewing Version Numbers

The version number of the embedded code may be checked at any
time except during a calibration. To see the major version number, hold
the Up button. This will not alter the operation of the unit other than
to change the blink sequence to 3 blinks indicating the major version
number. Holding the
without affecting operation. The version codes are interpreted according
to the following table:
Table 17: Viewing Version Numbers
First Blink Color
G
G
G
G
G
G
Down and
G
G
G
Y
Y
Y
Y
Y
Y
Y
Y
Y
R
R
R
R
R
R
R
R
R
Down button will give the minor version number
Second Blink Color Third Blink Color Version Number
G G
G Y
G R
Y G
Y Y
Y R
R G
R Y
R R
G G
G Y
G R
Y G
Y Y
Y R
R G
R Y
R R
G G
G Y
G R
Y G
Y Y
Y R
R G
R Y
R R
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26