MKS 651C - How To Control the Valve

How To Control the Valve Cha
p
ter Five: Local O
p
eration
52
How To Control the Valve
The 651 unit can drive the throttle valve to full open or full close, or halt it at its current position.
How To Open the Valve
To drive the valve to full open, press the [O
PEN
] key. The system responds by turning a light
on in the [O
PEN
] key, and driving the throttle valve to full open. The front panel window
returns to the default display of pressure and valve position, if it is not already showing the
default display.
The open command overrides the active set point. Pressing any other key on the front panel
(except [Z
ERO
] or [L
EARN
] ), cancels the open command.
How To Close the Valve
To drive the valve to full close, press the [C
LOSE
] key. The system responds by turning a light
on in the [C
LOSE
] key, and driving the throttle valve to full close. The front panel window
returns to the default display of pressure and valve position, if it is not already showing the
default display.
The close command overrides the active set point. Pressing any other key on the front panel
(except [Z
ERO
] or [L
EARN
] ), cancels the close command.
How To Halt the Valve
To stop the valve in its current position, press the [S
TOP
] key. The system responds by
illuminating a light in the [S
TOP
] key, and halting the throttle valve in its current position.
The front panel window returns to the default display of pressure and valve position, if it is not
already showing the default display.
The stop command overrides the active set point. Pressing any other key on the front panel
(except [Z
ERO
] or [L
EARN
] ), cancels the stop command.