GMV NGV A3 - 3.4 SIGNALS AND COMMANDS SEQUENCE

NGV A3 VALVE
INSTALLATION, USE AND MAINTENANCE
ENG
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10991483 EN - 1.10 26.05.2023
3.4 SIGNALS AND COMMANDS SEQUENCE
3.4.1 UPWARD DIAGRAM
3.4.1.1 UPWARD SIGNALS AND COMMANDS SEQUENCE
Start travel
sequence:
RDY=ON + RUN=OFF  (Vx=ON ) VS=ON  RDY=OFF – VB/SM=OPEN  RUN/UP=ON
( MP=ON)
End travel
sequence:
(Vx=OFF  VS=OFF ) VB/SM=OPEN  RUN/UP=OFF  (MP=OFF ) VB/SM=CLOSE 
RDY=ON
V
S
V
0
V
1
V
2
V
3
(V
0
)
Speed: High
1
1
0
0
0
(V
1
)
Speed: Medium
1
X
1
0
0
(V
2
)
Speed: Inspection
1
X
X
1
0
(V
3
)
Speed: levelling / re-levelling
1
0
0
0
0
/
1
On / Powered
/
0
Off / Not Powered
X
Anything
MP
Motor / pump
VS
Upward signal
SM
Stepping motor
Vx = V0, V1, V2
Speed (high, medium, inspection)