3-16
3-3 Starting Operation
3-3-1 Preoperation Check
Check the following points before starting operation.
• The device is properly installed and the feedback lever, feedback pin and other parts
are not damaged or fractured.
• The pneumatic piping is completely connected and an appropriate supply air pressure
is supplied. (Air is not leaking.)
• Is the input signal (4 to 20 mA DC) being applied.
1) Procedure for checking the device operation
The procedure for checking the device operation is shown below.
Step Work
1
Check that the control valve travel is being changed to suit the
preset characteristics by changing the input signal from the
controller (constant current source).
If operation is not normal, refer to “Chapter 5 Troubleshooting.”
2
After confirming normal operation, tightly secure the terminal
cover.
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