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8.2 Troubleshooting
8.2.9 When measured temperature value is abnormal
8
TROUBLESHOOTING
8.2.9 When measured temperature value is abnormal
POINT
The module may have failed if the measured temperature value cannot be read
after proper corrective actions have been taken according to the above check
items. Please consult your local Mitsubishi representative, explaining a detailed
description of the problem.
Table 8.10 When measured temperature value is abnormal
Check Item Corrective action
Is the type of connected RTD the same as in the
setting?
Set the connected RTD type to the intelligent function module
switch 1 and 2 using GX Developer.
Is the RTD connected correctly (not reversely)? Connect the RTD correctly.
Has the RTD input affected by noise?
Check influence from the ground and adjacent devices, and take
action to prevent noise.
Is different RTD connected after setting the offset/gain
values?
Set the offset/gain setting values again using the RTD changed.
Is wiring between the module and terminal block
correct?
Check that wiring between the module and terminal block is
correct.