User Manual of EM730/EM730E Series Inverter
263
Function
code
Function code name
Parameter description
Unit
Default
setting
Attribute
F15.33
Operating mode with set
frequency less than lower
frequency limit
0: running at the lower
frequency limit
1: Shutdown
0
〇
When the set frequency of the inverter is lower than the lower frequency limit (F00.19), the
running status depends on the function code F15.33.
Function
code
Function code
name
Parameter description
Unit
Default
setting
Attribute
F15.34 Fan control
0: running after power-on
1: running at startup
2: intelligent operation, subject
to temperature control
1
〇
In order to use the fan reasonably, the fan system has three running modes, depending on
the fan control function code (F15.34). The specific running mode of the fan is shown in Table
Table 7-23 Details of Fan Operation
Fan control
Fan operation
0: running after
power-on
When the inverter is powered on, the fan will start running.
1: running at startup
When the inverter starts running, the fan will start running. When
this parameter is set to 1 min, the fan will stop running.
2: intelligent
operation, subject to
temperature control
When the temperature of the inverter is greater than 45 °C, the fan
will start running; when the temperature of the inverter is less than
40 °C, the fan will stop running; and when the temperature of the
inverter is in between the two values, the fan will remain
unchanged.
★
When “2: intelligent operation, subject to temperature control” is selected, make sure
that the temperature detection module of the inverter works properly.
Function
code
Function code name
Parameter description Unit
Default
setting
Attribute
F15.35 Overmodulation intensity
1.00 - 1.10
1.05
●
When the input voltage of the inverter is lower than the output voltage, you can increase
the overmodulation intensity to improve the bus voltage utilization and thus increase the upper
limit of output voltage. When F15.35=1.10, the upper limit of output voltage can be increased
by 10%, thus reducing the output current under heavy loads, but the current harmonics will
