5.2 Maintenance information
5-3
5. Preventive/Predictive Maintenance
Overload warning level
Name Symbol Unit Input range
Default setting
at shipping
Overload warning
level
OLWL % 50 to 100
100
(disabled setting)
● With the motor temperature rise value which triggers an overload alarm as 100%, set the
level to output an overload warning between 50 and 99%.
● When the motor temperature rise value during operation exceeds the ratio set as
"overload warning level", the user will be notified with "Maintenance warning 3".
● When the motor temperature rise value falls below the ratio set as "overload warning
level", "Maintenance warning 3" will be automatically cleared.
● When "Maintenance warning 3" is output, investigate the cause of the increase in load.
Maintenance such as greasing or reviewing the operating conditions is recommended.
● Setting it to "100%" will disable this function.
Temperature change
under abnormal
conditions
Temperature change under normal conditions
Time
⇒
Warning output without stopping operation
Motor temperature
⇒
Stops operation
Overload alarm detection value
(100%)
Overload warning level set value
(50 to 99%)
Load increase
Alarm output
Warning output
Perform maintenance
Breakdowns and malfunctions can
be prevented by performing
maintenance after a warning is
output.
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