Temperature conversion value is not
normal
Installation is correct
Install the option board correctly.
No
Yes
PE ground is normal
Execute PE ground properly referring to user
manual
No
Yes
Wiring is normal
(K,J type thermocouple sensor input
wiring)
Wire properly referring to user manual
No
Yes
Parameter setting is normal.
(Channel status, input range setting)
Set parameter properly referring to user
manual.
No
Yes
Contact the nearest agency or LS
branch office.
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