7 LCP9H 70 en Liwa 3
1 LCP9H Local Control Panels for
VG9000H
1.1 General
The Local Control Panels LCP9H-series are designed to be
used together with the VG9000H intelligent safety solenoid.
Later on in this manual LCP9H name is used when all device
versions are in question. LCP9HL name is used when loop
powered versions are in question.
Different versions of LCP9H are following:
LCP9H, LCP9HW
Externally powered with ATEX and IECEx Ex i and Ex e
approvals
Use with VG9000H_L2
LCP9HL, LCP9HWL
Loop powered with ATEX and IECEx Ex i and Ex e
approvals
Use with VG9000H_L3
LCP9HE, LCP9HEW
Externally powered with ATEX and IECEx Ex d and tb
approvals
Use with VG9000H_L2
LCP9HEL, LCP9HEWL
Loop powered with ATEX and IECEx Ex d and tb
approvals
Use with VG9000H_L3
See the details of different types of LCP9H in the type cod-
ing at the end of this document.
This manual only describes the Local Control Panel 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). LCP9H permits the valve to be returned to the nor-
mal 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 emer-
gency isolation valve (test functionality, see 4.1.3 for
details).
Trip-functionality is removed in the W versions of the
LCP9H.
See the details of different types of LCP9H in the type cod-
ing at the end of this document.
LCP9H has also 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 cable. Communication between
the devices is handled by a current loop. The LCP9H needs
also a supply power. For the loop powered LCP9H versions
(LCP9H_L) the supply power is taken from the input loop for
the VG9000H, which needs to be 8 mA or more. For the
other LCP9H versions the power supply is external 24 VDC.
Refer to the general wiring of the LCP9H versions in Fig. 1 &
2. See detailed wiring information in Section 3.2.
If the LCP9H is used in intrinsically safe installations, an iso-
lator will be needed for the 24 V DC power supply, see Sec-
tion 1.5 for compatible isolators.
Fig. 1 General wiring of LCP9H / VG9000H_L2
Air supply
1. ValvGuard VG9000H_L2
2. Pneumatic actuator
3. Local Control Panel LCP9H
AO (mA)
from safety system (or from RCI9H)
24 V DC supply
(via isolator if required)
Serial
communication
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