Mitsubishi Electronics Q68RD3-G ユーザーズマニュアル

8

8.2.9

When measured temperature value is abnormal

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.

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.