Detailed Function Description
98
Notice:
z This parameter is normally used when rated power of inverter is greater than
rated power of motor.
z Motor overload protection time: 60s with 200% of rated current. For details,
please refer to above figure.
Function
Code
Name Description
Setting
Range
Factory
Setting
PB.04
Overload
pre-warning
threshold
20.0%~150.0% 20.0~150.0
130.0%
PB.05
Overload
pre-warning
selection
0: Always detect relative to
motor rated current
1: Detect while constant
speed relative to motor rated
current
2: Always detect relative to
inverter rated current
3: Detect while constant
speed relative to inverter
rated current
0~3
0
PB.06
Overload
pre-warning
delay time
0.0~30.0s 0.0~30.0 5.0s
The value of PB.05 determines the pre-warning category, such as motor overload (OL1)
or inverter overload (OL2).
PB.04 determines the current threshold of pre-warning actionn, it is a percentage of the
rated current. When output current of inverter exceeds the value of PB.04 and last the
duration determined by PB.06, inverter will output a pre-warning signal. Please refer to
following diagram:
Figure 6.36 Overload pre-warning schematic diagram.
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