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9) Check the I/O signals.
Using the host controller (PLC, etc.) or a teaching tool such as PC software, check the
presence of inconsistency in I/O signal conditions.
10) Check the noise elimination measures (grounding, installation of power line filter, etc.).
11) Check the events leading to the occurrence of problem
(Note 2)
, as well as the operating
condition at the time of occurrence.
12) Analyze the cause.
13) Treatment
Note 1
Alarms subject to this function include those in 9.3 Gateway Alarm and 9.4 Driver
Alarm but do not include errors in the teaching tool such as PC software.
Note 2 The time of alarm generated can be recorded if the clock is set to the current time on
Gateway Parameter Setting Tool. Refer to [3.9.3 (5) Clock Setting] for how to set up
the date and time.
If the current time is set, the data is remained for approximately 10 days under the
condition that the power to the controller is OFF. If the setting is not conducted or the
time data is lost, it will be the time passed since 2000/1/1, 00:00:00 when the power
is turned ON. Even if the date and time data is lost, the generated error code is
retained.
Notice: In troubleshooting, exclude normal portions from suspicious targets to
narrow down the causes. Check 1) to 11) described above before
contacting us.
Chapter 9 Troubleshooting
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