6-2
6-1 A/M Switch
The maintenance work can be performed by switching between Auto and Manual. The
device has a built-in Auto/Manual (A/M) switch.
The A/M switch switches the control method of output air from the positioner between
auto operation and manual operation.
1) Auto operation
• The device outputs the output air pressure to control the opening according to the
input signal.
2) Manual operation
• The positioner directly outputs the supply air pressure.
• Manual operations with the regulator are possible. (The double-acting actuator does
not support manual operation.)
Warning
It is dangerous because the valve moves when the A/M switch is operated. Be
prepared in advance to prevent injury and effects on the process when the valve
moves.
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