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Maintenance and Troubleshooting
June 2017
3. Connect the terminal box wiring connector to the PWB assembly (key 50).
4. Reassemble the module base to the housing by performing the Replacing the Module Base procedure.
5. Reconnect the field wiring as noted in step 2 in the Removing the Terminal Box procedure.
6. Apply lubricant, silicone sealant to the O‐ring (key 36) and install the O‐ring over the 2‐5/8 inch threads of the
terminal box. Use of a tool is recommended to prevent cutting the O‐ring while installing it over the threads.
7. Apply lithium grease (key 63) to the 2‐5/8 inch threads on the terminal box to prevent seizing or galling when the
cap is installed.
8. Screw the cap (key 4) onto the terminal box.
9. Install a set screw (key 58) into the cap (key 4). Loosen the cap (not more than 1 turn) to align the set screw over
one of the recesses in the terminal box. Tighten the set screw (key 58).
Stroking the Digital Valve Controller Output
After completing maintenance procedures, confirm proper valve operation by stroking the digital valve controller
output. Refer to page 42 in the Viewing Device Variables and Diagnostics section.
Instrument Troubleshooting
What to Do First
When a problem occurs, check the following first:
Mounting
D Is the feedback linkage connected correctly? Refer to the quick start guide (D103556X012) that ships with the
product.
Utility Connections
D Are pneumatic connections correct? Are there any air leaks? Refer to the quick start guide that ships with the
product.
D Is the air supply pressure sufficient to drive the valve?
D Is the digital valve controller correctly connected to the fieldbus? Refer to the quick start guide that ships with the
product.
D Is there power to the device? Is the terminal voltage between 9 and 32 volts? Refer to the quick start guide that
ships with the product.
D Is the segment terminated correctly? See host system documentation.
D Is the host system connected to the segment? See host system documentation.
If communication or output difficulties are experienced with the instrument, refer to the troubleshooting information
provided in table 6‐2.
Also see the Technical Support Checklist found on page 58.
54
Instruction Manual
D103563X012
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Table of Contents
Troubleshooting
