Installation, Operating & Maintenance Instructions
Series 651 DN 320-400 (I.D. 12“ - 16”), Logic
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 CH@vatvalve.com www.vatvalve.com
267736ED
2008-02-26
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3.11.4 Analog inputs and outputs
Pin Function Signal type
The limit pressure is in linear relation to the applied voltage. 10V relates to
sensor full scale.
In case of 2 sensor operation 10V relates to sensor 1 full scale (high
range).
Note: To activate pressure limit function for remote operation it must be
configured accordingly. Refer to «Interface configuration»
PRESSURE CONTROL:
A voltage of 0-10V shall be applied to this input as pressure setpoint. The
pressure setpoint is in linear relation to the applied voltage. Depending on
selected SETPOINT RANGE 10V means either sensor full scale or 10%
of sensor full scale.
In case of 2 sensor operation 10V relates to sensor 1 full scale (high
range).
POSITION CONTROL:
A voltage of 0-10V shall be applied to this input as position setpoint. The
position setpoint is in linear relation to the applied voltage. 0V is closed
but not isolation function and 10V is open position.
(Use digital input for isolation function)
12 PRESSURE
Analog
output
1)
This output indicates the current pressure as 0-10V. The output voltage is
in linear relation to the pressure. Depending on the selected SETPOINT
RANGE 10V means either sensor full scale or 10% of sensor full scale.
In case of 2 sensor operation sensor full scale relates to sensor 1 (high
range).
11 POSITION
Analog
output
1)
This output indicates the current valve position as 0-10V voltage range.
The voltage is in linear relation to the valve position. 0V is closed but not
isolation function and 10V is open position.
(Use digital output for isolation function)
13
ANALOG GROUND
Analog
ground
Ground for analog input and analog outputs.
1 CHASSIS GROUND
Chassis
ground
Chassis ground connected to case. Shall be used to connect cable shield.
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