4-10
4.4.3 Valve system
Configures the control valve control system.
Actuator action, valve action, and positioner action are set and modified here.
■ Actuator action
Select [Direct] or [Reverse]. If the feedback lever moves downward in response to in-
creasing air pressure to the actuator, set this to [Direct]; if the feedback lever moves up-
ward, set this to [Reverse]. (This will be set automatically if auto-setup is performed.)
The procedure for configuring actuator action is shown below.
Step Procedure
1 Select [Device] >> [Setup] >> [Valve System] >> [Actuator Action].
2 Specify [Direct] or [Reverse] actuator action.
3 Send the modified setting to the device using the transmission button.
■ Valve action
Select [Direct] or [Reverse]. If the feedback lever moves downward when the control
valve moves in the direction from open to closed, set this to [Direct]; if the feedback
lever moves upward, set this to [Reverse].
The procedure for configuring valve action is shown below.
Step Procedure
1 Select [Device] >> [Setup] >> [Valve System] >> [Valve Action].
2 Specify [Direct] or [Reverse] valve action.
3 Send the modified setting to the device using the transmission button.
■ Positioner action
Select [Direct] or [Reverse]. To make the device’s output air pressure go to zero when
the power supply is cut off, set this to [Direct]; to make the output air pressure go to the
maximum level, set this to [Reverse].
Note
• Modifying the positioner action requires EPM (electro-pneumatic module) recon-
figuration. Reconfiguration should be performed by an Azbil Corp. service repre-
sentative.
The procedure for configuring positioner action is shown below.
Step Procedure
1 Select [Device] >> [Setup] >> [Valve System] >> [Positioner Action].
2 Specify [Direct] or [Reverse] positioner action.
3 Send the modified setting to the device using the transmission button.
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