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IMR01N12-E7
11. TROUBLESHOOTING
This section explains possible
causes and solutions if any abnormality occurs in the instrument. For any inquiries
or to confirm the specifications of the product, please contact RKC sales office or the agent.
If it is necessary to replace a device, always strictly observe the warnings below.
All wiring must be completed before power is turned on to prevent electric shock, instrument failure, or
incorrect action. The power must be turned off before repairing work for input break and output failure
including replacement of sensor, contactor or SSR, and all wiring must be completed before power is
turned on again.
11.1 Display
Problem Possible
cause
Solution
No display appears
The internal assembly is not
inserted into the case correctly.
Insert the internal assembly into the
case correctly.
Power supply terminal connection
not correct
Connect the terminals correctly by
referring to
3.3 Wiring of Each
Terminal (P. 15)
.
Power supply terminal contact
defect
Retighten the terminals
Proper power supply voltage is not
being supplied.
Apply the normal power supply by
referring to
B. Specifications (A-27)
.
Display is abnormal
Noise source is present near the
instrument.
Separate the noise source from the
instrument.
Remote setting signal is input in
parallel to two or more this
instruments which use grounding
type thermocouples.
Insert an isolator to enable isolated
remote setting signal input for each
instrument.
Continued on the next page.
CAUTION
To prevent electric shock or instrument failure, always turn off the system
power before replacing the instrument.
To prevent electric shock or instrument failure, always turn off the power
before mounting or removing the instrument.
To prevent electric shock or instrument failure, do not turn on the power until
all wiring is completed. Make sure that the wiring is correct before applying
power to the instrument.
To prevent electric shock or instrument failure, do not touch the inside of the
instrument.
All wiring must be performed by authorized personnel with electrical
experience in this type of work.
WARNING
!