Instruction manual

IMR01H02-E3
79
8. TROUBLESHOOTING
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.
This section lists some of the main causes and solutions for communication problems.
If you can not solve a problem, please contact RKC sales office or the agent, on confirming the type
name and specifications of the product.
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RKC communication
Problem Probable cause Solution
No response Wrong connection, no connection or
disconnection of the communication cable
Confirm the connection method or
condition and connect correctly
Breakage, wrong wiring, or imperfect
contact of the communication cable
Confirm the wiring or connector and
repair or replace the wrong one
Mismatch of the setting data of
communication speed and data bit
configuration with those of the host
Confirm the settings and set them
correctly
Wrong address setting
Continued on the next page.
CAUTION
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To prevent electric shock or instrument failure, always turn off the system
power before replacing the instrument.
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To prevent electric shock or instrument failure, always turn off the power
before mounting or removing the instrument.
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To prevent electric shock or instrument failure, do not turn on the power until
all the wiring is completed.
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To prevent electric shock or instrument failure, do not touch the inside of the
instrument.
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All wiring must be performed by authorized personnel with electrical
experience in this type of work.
WARNING
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