5-6
5.2 A/M Switch
■
Introduction
The A/M switch changes the control method for the output air from the positioner be-
tween automatic operation and manual operation.
■
Automatic operation
The output air pressure corresponding to the input signal is output from the device.
■
Manual operation
•
The supply air pressure is output directly from the positioner.
•
Manual operation can be performed using the pressure regulator. (Not available
when a double-acting actuator is used.)
Warning
•
When the A/M switch is operated, the valve moves, which can be dangerous. Take
appropriate measures beforehand to ensure that the movement of the valve will not
cause injury or have an effect on the process.
■
A/M switch structure
The structure of the A/M switch is shown in the figure below.
Figure 5-1. A/M Switch Structure
Summary of Contents for AVP200
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