Protecting The Motor From Overload; Selecting A Motor Type And Protective Function - Toshiba TOSVERT VF-AS3 Instruction Manual

5. 1. 5
<tHrA: Motor overload protection current 1>
Basic parameter
■ 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
4
protect the motor.
5 ■ Parameter setting
Title
tHrA
*1 Depending on the capacity. Refer to [11. 6].
■ Reference of setting
Set <tHrA> suited for the motor rated current. Set necessary parameters for the used motor or
9
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
OLM
F606
5. [Fundamental operation] How to use parameters

Protecting the motor from overload

Easy mode
Parameter name
Motor overload
protection current 1
Parameter name
Motor overload
protection characteristic
Motor overload reduction
frequency threshold
tHrA
Min: 0.40
X1000
Adjustment range
*1
Depending on capacity
Adjustment range
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
0.0 - 60.0
5-14
E6582062
STOP 0.0Hz
15:10
:Motor overload protection current 1
4.00
A
Max: 4.00
X100 X10 X1
Unit Default setting
A
*1
Default
Unit
setting
0
Hz 6.0