GMV NGV A3 - Page 26

ENG
NGV A3 VALVE
INSTALLATION, USE AND MAINTENANCE
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10991483 EN -1.10 - 26.05.2023
3.4.2 DOWNWARD DIAGRAM
3.4.2.1 DOWNWARD SIGNALS AND COMMANDS SEQUENCE
Start travel
sequence:
RDY=ON+RUN=OFF  Vx=ON  D=ON  RDY=OFF  RUN=ON (VMD=ON)
End travel
sequence:
(Vx=OFF ) D=OFF  VB/SM=CLOSE  RUN=OFF  RDY=ON
D
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
D
Downward command
VMD
Downward solenoid valve
SM
Stepping motor
Vx = V0, V1, V2
Speed (High, Intermediate, Inspection)