Investigation method and
location of possible causes
Check that PWR (green) of the
controller turns OFF at either of
when power is supplied, SVON
ON is instructed or the actuator
is operating.
Use an appropriate voltage and power supply
capacity in reference to the operation manual
of the actuator and controller connected.
→ 3. Specifications (P.12)
→ 5. External Connections (P.23)
Check the incorrect wiring,
broken wire and short circuit of
the power supply plug.
Please correct the wiring in reference to
Controller Operation Manual.
→ 5. External Connections (P.23)
→ 6. CN1: Power Supply Plug (P.25)
MS or NS is ON
or flashing
(1) Setting error
(2) PLC has stopped operating,
or the communication is
idling.
(1) Set up configuration configuration
correctly.
(2) Set PLC in RUN status.
Set up the configuration correctly.
Refer to Hardware Configuration
(P.19) for details.
Stop using the product. Contact your
sales representative.
Set the IP address correctly.
Communication not established
Check the following and restart.
• Signal line from PLC is connected
correctly.
• Communication speed of PLC is
appropriate.
• Wire the communication line away
from the noise source.
Check the following and restart.
• Signal line from PLC is connected
correctly.
• Communication speed of PLC is
appropriate.
• Wire the communication line away
from the noise source.
IP address has been duplicated
Reset IP address which has not been
used yet.
If it is, check the type of alarm
referring to this manual.
Refer to the controller operation manual
and take appropriate measures.
→ 15. Alarm for Motor Control (P.62).
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