Omron GRT1 - 11-2007 Operation Manual page 315

Troubleshooting by Unit
Model
Units with Opera- The value for the Operation
tion Time Monitor Time Monitor is not the
expected value.
GRT1-@D4(-1)
GRT1-@D8(-1)
GRT1-ROS2
The Operation Time Monitor
Flag turns ON and OFF.
294
Details
• If the input filter is set, there is an
ON delay or OFF delay. (Input
Units only.)
• The ON edge and OFF edge of
the operation time can be
selected. The edges may not be
set in the intended way.
• Operation time combinations can
be selected. If the value is not the
expected value, the combinations
may not be set in the intended
way. The accuracy is ±2 ms.
The operation time is compared to
the monitor value and the Opera-
tion Time Monitor Flag is updated
for each measurement. Even if this
flag turns ON, it will turn OFF the
next time it is updated if the opera-
tion time is below the monitor value.
In addition, there is also an error
log flag. If the monitor value is
exceeded even once, it will be
recorded in the error log.
Probable cause
Section 9-5
Remedy
• Take the filter setting into
consideration when monitor-
ing the time or set the filter
constant to 0 ms.
• Check the combination set-
tings again on Slaves for
which the operation time
edges can be set.
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