Metso LCP9H, LCP9HW Maintance Manual

LCP9H and LCP9HW Local Control Panels for VG9000H
Rev. 1.1
Installation, Maintenance and Operating Instructions
7 LCP9H 70 en • 10/2010
2 7 LCP9H 70 en
Table of Contents
1 LCP9H and LCP9HW Local Control Panels
for VG9000H.................................................... 3
1.1 General .................................................. 3
1.2 Technical description............................. 3
1.3 System architecture ............................... 3
1.4 Markings ................................................ 3
1.5 Technical specifications ........................ 3
1.6 Recycling and disposal ......................... 4
1.7 Safety precautions ................................. 4
2 TRANSPORTATION, RECEPTION AND
STORAGE........................................................ 4
3 MOUNTING...................................................... 4
3.1 General .................................................. 4
3.2 Electrical connections ............................ 5
4 LCP9H_ LAYOUT AND FUNCTIONALITY .....5
4.1 Functionality ........................................... 5
5 MAINTENANCE............................................... 6
6 TROUBLE SHOOTING.................................... 7
7 TOOLS ............................................................. 7
8 TYPE CODING................................................. 7
9 SPARE PARTS................................................ 7
10 DIMENSIONS................................................... 8
These instructions provide information about safe handling and operation of the device. If you require additional assistance, please contact the manufacturer or manufacturer's representative. Addresses and phone numbers are printed on the back cover.
SAVE THESE INSTRUCTIONS!
Subject to change without notice.
All trademarks are property of their respective owners.
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1 LCP9H and LCP9HW Local Control
Panels for VG9000H
1.1 General
The Local Control Panels LCP9H and LCP9HW are designed to be used together with the VG9000H safety valve controller. Later on in this manual LCP9H_ name is used when both versions (LCP9H and LCP9HW) are in question. This manual only describes the Local Control Panel LCP9H_ wiring, configurations and functions. See the VG9000H manual (7VG92H70en) for detailed infor­mation, functionality and wiring connections and options for the VG9000H.
1.2 Technical description
LCP9H permits the emergency isolation valve to be closed (or opened) locally (close/open functionality, see
4.1.1 for details). This functionality is removed from LCP9HW. They permit the valve to be returned to the normal operating position when the trip initiators are normal (manual reset functionality, see 4.1.2 for details). There is also the option for functional testing
(PST) of the emergency isolation valve (test functional­ity, see 4.1.3 for details).
LCP9H_ also has indicators (LEDs) for the valve posi­tion (open/close), ready to reset, testing and alarm sta­tus (see 4.1.4-7 for LED details).
All the buttons are lockable with e.g. padlock (max. shackle dia. 5 mm).
1.3 System architecture
The Local Control Panel LCP9H_ is connected to the VG9000H with a dual pair twisted cable. Communica­tion between the devices is handled by a current loop. The LCP9H_ also needs a 24 V DC power supply. Refer to the general wiring of the LCP9H_ in Fig. 1. See detailed wiring information in section 3.2.
If the LCP9H_ is used in intrinsically safe installations, an isolator will be needed for the 24 V DC power sup­ply, see 1.5 for compatible isolators.
AO (mA) from safety system (or from RCI9H)
Serial
communication
Air supply
1. ValvGuard VG9000H
2. Pneumatic actuator
3. Local Control Panel LCP9H_
Fig. 1 General wiring of LCP9H_ / VG9000H
1.4 Markings
The Local Control Panel is equipped with an identifica­tion plate sticker (Fig. 2).
Fig. 2 Identification plate
24 V DC supply (via isolator if required)
1.5 Technical specifications
VG9000H compatibility
Compatible with VG9_H_L2_ versions. See the VG9000H type coding for further details of different VG9000H versions.
Temperature range
-20° to +65 °C
Electronics
Electrical connection:
max. 2.5 mm 2 pcs. of cable glands, possible cable dimensions 6–11 mm
Power consumption:
400 mW
Power supply:11–24 V DC, 50 mA
Output is short circuit protected
2
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Maximum distance for power supply:
1200 m
Ex ia IIC T4/T5/T6 Gb:
Ui 9.8 V Ii 47 mA Pi 120 mW Ci 3.3 nF Li 15 µH
Ex ic IIC T4/T5/T6, Ex nL IIC T4/T5/T6 Gc:
Ui 25.2 V Ii 150 mA Pi 650 mW Ci 25 nF Li 201 µH
Ex ic IIC T4/T5/T6 and Ex nL IIC T4/T5/T6 Gc:
Uo 8.8 V Io 42 mA Po 93 mW Co 45 nF Lo 45 µH
Communication cable
The communication cable between the LCP9H_ and the VG9000H must be a shielded, twisted pair, 4-wire cable. The shield must be connected to housings in both ends. The maximum distance between the VG9000H and the LCP9H_ is 60 m.
Cable requirements:
- Signals and corresponding ground wires twisted
- Wire thickness min. 0.8 mm
- Shield coverage > 85 %
- Test voltage > 1500 V (Ex requirement)
- Resistance < 50 Ω/km
- Capacitance < 50 pF/m
Compatible isolators
MTL 5021
P&F KFD0-SD2-Ex1.1045
STAHL 9176/.0-14-0
ABB V17132-520
Dimensions
Without buttons and cable glands:
250 mm x 200 mm x 114 mm (h x w x d)
With buttons and cable glands (approx.):
270 mm x 200 mm x 137 mm (h x w x d)
Material
316L stainless steel
Weight
2.8 kg
Approvals
ATEX II 2G Ex ia T4/T5/T6 Gb ATEX II 3G Ex ic T4/T5/T6 Gc ATEX II 3G Ex nL T4/T5/T6 Gc
EMC
Acc. to EN61000-4-2 ... 4-6, 4-8
1.6 Recycling and disposal
Most local control panel parts can be recycled if sorted according to material. Most parts have material mark­ing. In addition, separate recycling and disposal instructions are available from the manufacturer.
The Local Control Panel may also be returned to the manufacturer for recycling and disposal. There will be a charge for this.
1.7 Safety precautions
CAUTION: Do not exceed the permitted values! Exceeding the permitted values may cause dam­age to the local control panel and to equipment attached to the panel. Damage to the equipment and personal injury may result.
CAUTION: During maintenance or commissioning when the device cover is open, ensure that water does not go inside the enclosure.
CAUTION: Do not operate the device with the cover open or removed! Electromagnetic immunity is reduced.
NOTE:
Avoid earthing a welding machine in close proximity to the LCP9H_. Damage to the equipment may result.
2 TRANSPORTATION, RECEPTION
AND STORAGE
The Local Control Panel is a sophisticated instrument, handle it with care.
Check the Local Control Panel for any damage
that may have occurred during transportation.
Store the Local Control Panel preferably indoors
and keep it away from rain and dust.
3 MOUNTING
3.1 General
4 pcs. 10 mm holes on the back side. Mounting parts are provided, including M8 bolts. The diameter of the holes is 194 mm (vertical) and 230 mm (horizontal). See Section 10 DIMENSIONS for details.
The open / close button face is user selectable (open/ close). Both face plates are included in the delivery.
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NOTE:
The enclosure of the LCP9H_ meets the IP66 protection class according to EN 60529 in any position when the cable entries are plugged according to IP66.
Based on good mounting practice, the recommended mounting position is with electrical connections placed downwards. If these requirements are not met, and the cable glands are leaking and the leakage is damaging the LCP9H_ electronics, our warranty is not valid.
3.2 Electrical connections
There are two terminal blocks located in the circuit board inside the LCP9H_ (see Fig. 3). One (LOOP) is for connection to the VG9000H and the other one (PWR) is for the 24 V DC power supply.
VG900HLCP9H
Fig. 4 LCP9H front panel
LOOP_CHGND
LOOP_B-
LOOP_B+
LOOP_A-
LOOP_A+
PWR_IN_CHGND
PWR_IN-
PWR_IN+
ground
ground
24 V DC supply
Fig. 3 LCP9H_ electrical connections
See the VG9000H manual 7VG92H70en for detailed electrical connections in the VG9000H.
NOTE:
When installing the LCP9H_, standard IEC 60079-14/
12.2.4 should be considered. The circuits of the appa­ratus are assumed to be earthed.
4 LCP9H_ LAYOUT AND
FUNCTIONALITY
The LCP9H_ front panel layouts with push buttons and LEDs can be seen in Fig. 4 and 5. The push buttons (described in the section 4.1) are as follows:
Open / Close Reset Te st
The LEDs (described in the section 4.1) are as follows:
Reset (amber) Open (green) Close (red) Test (amber) Alarm (red)
Fig. 5 LCP9HW front panel
4.1 Functionality
The functionality of the LCP9H_ push buttons and pur­pose of the LEDs are described below in 4.1.1-7.
Functionality of the LCP9H_ is lost in the following cases:
If the 24 V DC supply power is disconnected If there is no communication between the
LCP9H_ and the VG9000H, e.g. the cable is bro­ken or disconnected
If the polarity of wires is incorrect If the Loop A (7, 8) and Loop B (9, 10) wires are
mixed in the VG9000H These above-mentioned cases do not affect the valve position, but the Alarm LED is blinking.
The buttons need to be pushed (0.2–10 seconds) and released to perform the desired function.
4.1.1 Open / Close button
This functionality is only available in LCP9H.
LCP9HW does not have the valve close/open
functionality. The purpose of the Open / Close button is to
manually close or open the valve depending on
the assembly and configuration of the valve;
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closing for emergency shut down valve and opening for the emergency blowdown (venting) valve.
The button face is user selectable (open/close).
There are two faceplates in the delivery of the LCP9H box.
NOTE:
When the button is pushed and released, the valve will be driven to the safety position; i.e. it will close the valve if it is the emergency shutdown valve and it will open the valve when it is the emergency blowdown (venting) valve.
4.1.2 Reset button
The purpose of the Reset push button is to return
the valve to the normal operating position after the emergency trip.
The Reset button is operational only when the
mA signal from the safety system (or RCI9H) to VG9000H is in the normal state, i.e. above
16.0 mA.
The Ready to Reset LED is lit when mA signal
from the safety system (or RCI9H) to VG9000H is above 16.0 mA, i.e. in the normal state. The Reset button is then operational.
Push and release the Reset button to return the
valve to the normal operating position.
NOTE:
Make sure to push the Reset button only when it is safe to return the valve to the normal operating position.
4.1.3 Test button
The purpose of the Test button is to start the par-
tial stroke test (PST) manually or to cancel the manual partial stroke test of the emergency isola­tion valve.
The stroke size of the test can be set via DTM or
from the LUI (Local User Interface) of the VG9000H. See VG9000H manual 7VG970en for details.
The manual test via LCP9H uses the same stroke
size than manual PST programmed into VG9000H itself.
To start the PST test, press and release the Test
button and the Test LED will be illuminated.
To stop the ongoing manual PST test, press and
release the Test button and the manual PST test will be cancelled. The valve will return to its nor­mal operating position.
It is also possible to cancel the manual PST test
even if it is started via HART or LUI.
4.1.4 Reset LED
The Reset LED (also known as ready to reset) is
turned on when mA signal from the safety sys­tem (or RCI9H) to the VG9000H is in the normal state (above 16.0 mA) and the Reset button has
not yet been pushed. It indicates that the Reset button can be used.
NOTE:
Make sure to push the Reset button only when it is safe to return the valve to the normal operating position.
4.1.5 Open and closed LEDs
Open and closed LEDs indicate the valve posi-
tion 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 posi-
tion information of the VG9000H safety valve con­troller.
4.1.6 Test LED
The function of the Test LED is to indicate when
the Test button is pushed and the PST test with VG9000H has started. See Section 4.1.3. for the Test button functionality.
The Test LED will be turned on when the Test but-
ton 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 in the DTM. See the separate DTM manual for further details.
The Test LED will also be turned on during other
tests: pneumatics test, automatic or manual PST and ETT. See the VG9000H or DTM manuals for other test details.
The LED will blink few times if the test starting
fails.
4.1.7 Alarm LED
The Alarm LED indicates the alarm state in the
VG9000H.
If the Alarm LED is turned on, it means that the
Alarm status is activated in the VG9000H.
The Alarm LED will blink, if the communication
between the LCP9H and the VG9000H is discon­nected or not functional, or if the External Devices parameter in the VG9000H is not defined as "LCP". That parameter can only be changed via HART or LUI.
5 MAINTENANCE
NOTE:
LCP9_ maintenance must only be carried out by Metso certified service personnel.
Under normal service conditions there is no require­ment for regular maintenance.
Lamp test
Push the Test button for more than 10 seconds. All the LEDs will then be turned on and off after one another in the following sequence: open, close, reset, test, alarm. After the lamp test, the LEDs which were turned on prior to this testing will be turned on.
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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 enabled. Go to the parameters menu in the VG9000H 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 manual.
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 for the LCP9H_ is connected according to the instructions 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 test fails:
Check that there are no alarms/warnings in the
VG9000H. See the VG9000H and/or DTM manual for details.
The push of the test button may be too short or
too long. You need to push the test button for
0.2–2 seconds and then release.
If the reset function does not work:
Check that the mA signal to VG9000H is above
16 mA. See the VG9000H and/or DTM manual for details.
Check that supply pressure to the VG9000H is
turned on and in the correct range.
The push of the test button may be too short or
too long. You need to push the test button for
0.2–2 seconds and then release.
7TOOLS
Use the provided key for opening and locking the cover. No other special tools are required.
8 TYPE CODING
See the Neles ValvGuard VG9000H typecoding for the LCP9H_ and the VG9000H safety valve controller detailed type coding.
9 SPARE PARTS
The following spare parts are available:
printed circuit board push buttons
Contact the local Metso's Automation business line office for ordering spare parts.
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10 DIMENSIONS
Note: This button is only available in LCP9H.
LCP9HW does not have this button.
Metso Automation Inc.
North America, 44 Bowditch Drive, P.O. Box 8044, Shrewsbury, MA 01545, USA. Tel. +1 508 852 0200. Fax +1 508 852 8172
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Tel. +971 4 883 6974. Fax +971 4 883 6836
www.metso.com/automation
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