43
Logix
®
520MD+ and 510+ Digital Positioners FCD LGENIM0105-15-AQ – 05/16
flowserve.com
10.3 Menu Features
The LCD display is an available option with the 510+ and 520MD+
models.
10.3.1 Status
.
Status
.
Command (mA)
.
Command (%)
.
Position (%)
.
PS (Supply Pressure)
2
.
PA (Port A Pressure)
2
.
PB (Port B Pressure)
2
.
Friction
3
.
Actuation Ratio
3
.
Pneumatic Leak
3
.
Temperature
.
Valve Cycles
.
Valve Travel (%)
.
Card 1 Value
.
Card 2 Value
1
1
Not available with 510+
2
Requires 520MD+ Advanced positioner upgrade.
3
Requires 520MD+ Pro positioner upgrade.
The Status menu is used to view information about the configuration
and operation of the system.
Command displays the final command in mA.
Command displays the final command in %.
Position displays the valve position in %.
PS displays the supply pressure.
PA displays the pressure in port A. This is the primary port if using a
poppet-style relay module.
PB displays the pressure in port B. This is the primary port if using a
spool-style relay module.
Friction displays the friction of the actuator/valve assembly.
Actuation Ratio displays the force required to actuate the valve as a
percentage of the total force available. The value is an estimate of the
force that would be required to move the valve to the end of travel, fully
compressing the actuator spring(s).
Pneumatic Leak is an estimate of leak in addition to regular air
consumption.
Temperature displays the temperature inside the positioner.
Valve Cycles are counted each time the positioner changes direction.
The movement must be beyond a dead-band window. This window is
set to 0.5% as a default, but can be changed using the DTM.
Valve Travel is counted in small increments every time the valve moves
beyond the dead-band window. The travel is displayed in % of full stroke.
Card 1 Value shows the configuration and status of the auxiliary card
in slot 1. A tripped state is represented by a 0. A nominal state is repre-
sented by a 1.
Card 2 Value shows the configuration and status of the auxiliary card
in slot 2. A tripped state is represented by a 0. A nominal state is repre-
sented by a 1.
For example, if the Multi-Function Card (MFC) was in slot 1, configured
as an analog output (AO), and giving 12.34 mA, the display would show
“AO 1 12.34mA”. If no card is in the slot, the display will show “No
Card”.
For more information about auxiliary card status, see Table 14: Auxiliary
Card Status.
10.3.2 Alerts and Alarms
.
Alerts and Alarms
.
Current Alarms (Prioritized)
.
Event History
.
Last Event
.
2nd Event
.
3rd Event
*
*
*
.
32nd Event
The Alerts and Alarms menu shows current and past alarms, warnings,
alerts, and calibrations.
Current Alarms displays all events that are actively sounding.
Event History displays past 32 events including alarms, warnings,
alerts, and calibrations. The event that occurred most recently is dis-
played first (event 32) with later events recorded below. Each event has
a time stamp and shows if it was turning on or off.
10.3.3 Partial Stroke Test
.
Partial Stroke Test1
.
Start
.
Last Result
1
Not available with 510+
The Partial Stroke Test (PST) menu provides the user the ability to start
a PST and see the results of the latest PST.
a
CAUTION:
Performing a Partial Stroke Test will result in valve
movement and the inability to operate the valve until the test is
complete. Notify proper personnel that the valve may stroke, and
make sure the valve is properly isolated if required by plant proce-
dures.
Start allows the user to initialize the (PST).
Last Result shows “Pass” or “Fail” from the last PST attempt.
