Chapter 9 - Troubleshooting
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MNL000303.doc
Revision 2
09/16/2016
SourceSystem TE11
© Versum Materials, Inc. as of the revision and date shown. All rights reserved.
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9.1.2 Incorrect Analog Value on Display
Possible Source of
Problem
Test
Solution
No Signal or incorrect
signal from field device
Verify the field device is
connected to the proper input
receptacle.
Connect field device to the
proper receptacle o the
interface box.
Analog input not scaled
properly
Check the field device for
proper operation and
calibration.
Verify the input scaling range
in the controller configuration.
Repair, or replace as
necessary.
Set the scaling values to
the proper range of the
field device.
Input circuit fault
Check for blown fuse on
Replace fuse.
Input circuit.
Follow “Troubleshooting
Repair, or replace faulty
Analog Inputs” procedure
component as necessary.
To determine location of
Fault.
9.1.3 Digital Input Not Working
Possible Source of Problem
Test
Solution
No Signal or incorrect signal
from field device
Verify the field device is
connected to the proper input
receptacle.
Connect field device to the
proper receptacle o the
interface box.
Input circuit fault
Check the field device for
proper operation and
calibration.
Check for blown fuse on
input circuit.
Repair, or replace as
necessary.
Replace fuse.
Follow “Troubleshooting Repair, or replace faulty
Digital Inputs” procedure component as
to determine location of fault. Necessary.