• To check the status of the electronic thermal function, use the Electronic Thermal Load Rate
Monitor (d104). An overload trip (E05) error will occur if the value reaches approximately
100%.
• This inverter has the free-electronic thermal function. This function enables you to change the
overload detection characteristics of the electronic thermal function according to the motor
specifications, if they are not applicable to the overload characteristics of your motor.
For details, refer to the Free-electronic Thermal Function section in 7-4 Detailed Functions
(Group b) on page 7-61.
• The electronic thermal function can output a warning signal before the inverter is stopped by
an overload detection.
The use of a warning signal is effective to reduce the system down time because it enables
you to solve problems previously.
For details, refer to the Electronic Thermal Function section in 7-5 Multi-function Terminal
Functions (Group C) on page 7-108 .
Parameter
No.
Function name Data Default data Unit
b012
1st Electronic Thermal
Level
0.20 x Rated current to 1.00 x Rated
current
*1
*2
*1. To enable the switching to the 2nd/3rd control, allocate one of the Multi-function Input S1 to S8 Selection (C001
to C008) to 08 (SET) or 17 (SET3) and turn ON that terminal.
*2. Set according to the rated current of your motor.
Rated
current of
inverter
A
b212
2nd Electronic Thermal
Level
*1
b312
3rd Electronic Thermal
Level
*1
b013
1st Electronic Thermal
Characteristics Selection
00: Reduced torque characteristics (for
general-purpose motor)
01: Constant torque characteristics (for
dedicated inverter motor)
02: Free setting (Select 00 or 01 according
to your motor.)
00 –
b213
2nd Electronic Thermal
Characteristics Selection
*1
b313
3rd Electronic Thermal
Characteristics Selection
*1
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