7 LCP9H 70 en Liwa
9
4.1.5
Open and Closed LEDs
Open and Closed LEDs indicate the valve position
and whether the emergency isolation valve is open
or closed.
If the valve is in the intermediate state both LEDs are
turned off.
The position information is taken from the position
information of the VG9000H safety valve controller
and the triggering limits are user selectable. The limits
can only be seen and changed via HART (DTM, EDD).
4.1.6
PST LED
The function of the PST LED is to indicate when the
PST button is pushed and the PST test with VG9000H
has started. See Section 4.1.3. for the PST button
functionality.
The PST LED will be turned on when the PST button
is pushed and released. It will be on also during the
Test Warning Time. The Test Warning Time is the
VG9000H parameter and can only be seen and
changed via HART (DTM, EDD).
The PST LED will also be turned on during other
tests: pneumatics test, automatic or manual PST and
ETT. See the VG9000H manual for other test details.
The LED will blink few times if the test starting fails.
4.1.7
FAULT LED
The Fault LED indicates the alarm state in the
VG9000H.
If the Fault LED is turned on, it means that the Alarm
status is activated in the VG9000H.
The Fault LED will blink, if the communication
between the LCP9H and the VG9000H is discon-
nected or not functional, or if the External Devices -
parameter "LCP" in the VG9000H DTM (Metso Valve
Manager
TM
) is not selected or it is disabled (diS) in
the VG9000H LUI. That parameter can only be
changed via HART or LUI.
5
MAINTENANCE
Under normal service conditions there is no requirement
for regular maintenance.
5.1
LED test
Push the PST button for more than 10 seconds. All the LEDs
will then be turned on and off after one another in the fol-
lowing sequence: open, closed, ready to open, PST, fault.
After the LED test, the LEDs which were turned on prior to
this testing will be turned on.
6
TROUBLE SHOOTING
If the LCP9H does not work, check the following:
Check the LCP parameter in the VG9000H:
The LCP parameter in the VG9000H needs to be ena-
bled. Go to the parameters menu in the VG9000H LUI
and check that LCP is enabled. For details see the
VG9000H IMO.
This can also be checked in Assembly Related view in
the VG9000H DTM. Check that LCP is selected in the
External Devices parameter. For details see the
VG9000H DTM help file.
Wiring:
Check that the wiring between the LCP9H and the
VG9000H is done according to the instructions in
this manual and/or in the VG9000H IMO.
Power supply:
Check that the power supply or the loop power for
the LCP9H is connected according to the instruc-
tions in this manual and it is turned on.
VG9000H:
Check that the VG9000H installation and setup is
done according to the instructions in the VG9000H
IMO.
If starting the PST fails:
Check that there are no alarms/warnings in the
VG9000H. See the VG9000H IMO (7VG9H70en) and/
or DTM help file for details.
The push of the PST button may be too short or too
long. You need to push the PST button for 0.2–10
seconds and then release.
If the reset function does not work:
Check that the mA signal to VG9000H is above
12 mA. See the VG9000H IMO (7VG9H70en) for
details.
Check that supply pressure to the VG9000H is turned
on and in the correct range.
The push of the PST button may be too short or too
long. You need to push the PST button for 0.2–10
seconds and then release.
If the trip function does not work:
Check that the mA signal to VG9_P is 20 mA and the
functionality is enabled in VG. See the VG9000H IMO
(7VG9H70en) for details.
7
TOOLS
Use the provided key for opening and locking the cover in
LCP9H_ versions. No other special tools are required.
Use 8 mm hex key for the cover screws in the LCP9HE_
versions.
8
SPARE PARTS
The following spare parts are available:
printed circuit board
push buttons
button covers
Contact the local Metso Flow Control office for ordering
spare parts.
NOTE:
LCP9H maintenance must only be carried out by Metso
certified service personnel.
