CHF100A series high performance universal inverter
.77.
When the motor outputs rated torque, actual frequency drop is equal to P8.24. User can
adjust this parameter from small to big gradually during commissioning. The relation
between load and output frequency is in the following figure.
Figure 6.22 Droop control diagram.
Function
Code
Name
Description
Setting
Range
Factory
Setting
P8.25
Brake
threshold
voltage
115.0~140.0%
115.0~140.0
Depend
on model
When the DC bus voltage is greater than the value of P8.25, the inverter will start
dynamic braking.
Notice:
l
Factory setting is 120% if rated voltage of inverter is 220V.
l
Factory setting is 130% if rated voltage of inverter is 380V.
l
The value of P8.25 is corresponding to the DC bus voltage at rated input
voltage.
Function
Code
Name
Description
Setting
Range
Factory
Setting
P8.26
Cooling fan
control
0: Auto stop mode
1: Always working
0~1
0
0: Auto stop mode: The fan keeps working when the inverter is running. When the
inverter stops, whether the fan works or not depends on the module temperature of
inverter.
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