LiteOn EVO 6800 Series - Page 168

168
(when motor load is 100%)
150
100
90
50
Torque
(%)
0 1
10
100 Speed (%)
(60Hz)
60 seconds
Continuous
Rated speed=100%
speed
Motor cools itself
effectively even at low
speeds (about 6 Hz)
Continuous run from 6 Hz to
60 Hz
 P1-01 Motor Overload Protection Time
Sets the time for the drive to shut down on motor overload. (Normal this parameter does not
require adjustment. However, enter the time the motor can withstand operation in a hot motor
overload condition if the motor overload tolerance data is confirmed by the motor
manufacturer.)
No.
Name
Setting Range
Default
P1-01
Motor Overload Protection Time
0.1 to 5.0 min
1.0 min
The default is operation with 150% overload tolerance for one minute in a hot start.
The electrothermal protection operation time is illustrated in the following figure. Motor
overload protection operates in the range between a cold start and a hot start.
( P1-01 = 1 minute, 60 Hz speed, general-purpose motor)
· Cold start: The motor protection operation time responds to an overload situation which
is suddenly reached when strating a stationary motor.
· Hot start: The motor protection operation time responds to an overload situation which
occurs when the motor was running continuousely at its rated current.
0 100 150 200
10
7
3
1
0.4
Operation time (minutes)
Motor current(%)
d2-00=100%
Cold
start
Hot
start