43
Overload Detection Setting
Pr.58 Pr.59
Electronic Thermal Overload Relay
Parameter # 58
Parameter Name
Motor derating curve during temperature change
Factory Setting
d0002
Units
None
Settings
d0000 Active with standard motor
d0001 Active with special motor
d0002 Inactive
To prevent self-cooling motors from over-heating while running at low speeds, this
parameter may be set to limit the AC drive output power.
d0000:
The electronic thermal characteristics behave in accordance with a
reduced torque motor (standard motor).
d0001:
The electronic thermal characteristics behave in accordance with a
constant torque motor (special motor).
Parameter # 59
Parameter Name
Electronic thermal characteristics selection
Factory Setting
d0060
Units
1 Sec
Parameter value
d0030 - d0300 Sec.
This parameter determines the time required to activate the I
2
t electronic thermal
protection function. The activation time may be defined according to short, standard
and long time ratings.
0 80 120 140 20020 40 60 100
1
160 180
2
3
4
5
Operation
time (min)
Load
factor (%)
60Hz or more
50Hz
10Hz
5Hz
Call 1(800)985-6929 for Sales
Call 1(800)985-6929 for Sales