E6582062
5. [Fundamental operation] How to use parameters 5-14
4
5
9
5. 2. 5 Protecting the motor from overload
<tHrA: Motor overload protection current 1>
■ Function
Set a protection characteristic of the electronic thermal suited for the rating and characteristic of the
motor. The electronic thermal operates based on the set current value, and any trip occurs. This will
protect the motor.
■ Parameter setting
■ Reference of setting
Set <tHrA> suited for the motor rated current. Set necessary parameters for the used motor or
operation.
■ Selecting a motor type and protective function: <OLM: Motor overload protection
characteristic>, <F606: Motor overload reduction frequency threshold>
Select a motor type and whether the motor overload trip "OL2" and overload stall are enabled or
disabled.
The inverter overload trip "OL1" is always detected to protect the inverter.
Title Parameter name Adjustment range Unit Default setting
tHrA Motor overload
protection current 1
Depending on capacity
*1
*1 The range, unit, and default setting are depending on the capacity. Refer to [11. 6].
A
*1 *1
Title Parameter name Adjustment range Unit
Default
setting
OLM Motor overload
protection characteristic
0: Standard motor, OL2, No stall
1: Standard motor, OL2, Stall
2: Standard motor, No OL2 trip, No stall
3: Standard motor, No OL2 trip, Stall
4: Constant torque motor, OL2, No stall
5: Constant torque motor, OL2, Stall
6: Constant torque motor, No OL2 trip, No stall
7: Constant torque motor, No OL2 trip, Stall
0
F606 Motor overload reduction
frequency threshold
0.0 - 60.0 Hz 6.0
0.0HzSTOP
15:10
Min: 0.40 Max: 4.00
X1000 X100 X10
A
4.00
X1
tHrA :
Motor overload protection current 1
Basic parameter Easy mode
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