Electrical Connections; Lcp9H_ Layout And Functionality; Functionality - Metso LCP9H Installation Maintenance And Operating Instructions

7 LCP9H 70 en
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.
LCP9H
LOOP_CHGND
LOOP_B-
LOOP_B+
LOOP_A-
LOOP_A+
PWR_IN_CHGND
PWR_IN-
PWR_IN+
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 appa-
ratus 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
❑
Test
The LEDs (described in the section 4.1) are as follows:
❑
Reset (amber)
❑
Open (green)
❑
Close (red)
❑
Test (amber)
❑
Alarm (red)
Fig. 4
VG900H
ground
ground
24 V DC
supply
Fig. 5
4.1
The functionality of the LCP9H_ push buttons and pur-
pose of the LEDs are described below in 4.1.1-7.
Functionality of the LCP9H_ is lost in the following
cases:
❑
❑
❑
❑
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
❑
❑
LCP9H front panel
LCP9HW front panel
Functionality
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 bro-
ken 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
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;
5