•
If 150% of overload capacity of your motor is large:
Set a small value for 1 minute relative to the time during which 150% of the overload capacity of
your motor is applied.
•
If 150% of overload capacity of your motor is small:
Set a large value for 1 minute relative to the time during which 150% of the overload capacity of
your motor is applied.
•
Setting the Motor Electronic Thermal Selection (b910) to 00 (Disabled) enables the electronic thermal
function to simultaneously detect the inverter and the motor.
This has the same characteristics as those of the conventional electronic thermal function, which the
electronic thermal detection characteristics for the inverter are the basic characteristics. Specifically,
the rated output current that serves as the reference value for overload detection changes to the set
b012/b212 value. The detection characteristics also change depending on whether the Inverter is in
the normal or light load mode.
For details on the electronic thermal detection function of the inverter, refer to 5-3-2 Electronic Ther-
mal Function on page 5-15. Note that the subtraction ratio is the same as when b911 is set to 01.
•
When the Electronic Thermal Load Rate Memory Selection at Power-off (b914) is set to 01
(Enabled), the electronic thermal load rate will be stored when power supply to the Inverter is turned
OFF. The stored load rate will be read the next time the power supply is turned ON. When the param-
eter is set to 00 (Disabled), the counter value will not be stored. It will be cleared when the power
supply is turned ON. The factory default setting is 01 (Enabled). To comply with UL standards, set
this to 01 (Enabled).
*1. When b910 is set to 01 to 03, the electronic thermal function is separated for the motor and for the inverter.
The electronic thermal function for the inverter works based on the constant torque characteristics with refer-
ence to the rated output current of the inverter, independent of the b012/b212 setting. For details on the elec-
tronic thermal detection function of the inverter, refer to 5-3-2 Electronic Thermal Function on page 5-15.
*2. When b910 is set to 01 to 03, the overload trip error is divided into the motor overload E05. and the inverter
overload E38..
*3. The digit shift display mode can be used.
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