Goodrive300-01A series VFD for air compressor
Function code description
-68-
Function
code
Name
Description
Default Modify
P18.06
Loading pressure
when air compressor control is valid and the
air compressor supplies air as normal, if the
discharge pressure is higher than P18.05,
unloading automatically. If sleep function is
valid (P18.01=1), the VFD enters sleep state;
if the discharge pressure is lower than
P18.06, loading automatically. P18.07 is used
to set the air-supply pressure when the air
compressor runs stably. During load-carrying
running, the motor speed is controlled by
pressure PID, and the system keeps the
discharge pressure constant via adjusting
master speed. See 5.2 for details on pressure
control process logic.
Setting range: 0.00
–P18.04
0.60Mpa
○
P18.07
Set pressure
0.70Mpa
○
P18.08
Starting temperature of
the fan
When the machine head temperature is
higher than P18.08, the fan starts;
When the machine head temperature is lower
than P18.09, the fan stops;
P18.10 is used to set the target temperature
of the machine head when the air compressor
runs stably in dual-VFD mode, the fan speed
is controlled by thermostatic PID (P18.42=0),
PID calculation is carried out via P18.10 and
the machine head temperature to realize
thermostatic control.
Note:
Temperature PID is only for dual-VFD
applications. The temperature PID of the main
motor frequency conversion regulates the fan
frequency conversion speed through analog
output.
Setting range: -20
–150
75°C
○
P18.09
Stop temperature of
the fan
65°C
○
P18.10
Setting temperature
75°C
○
P18.11
Lower-limit frequency
at load-carrying
running
P18.12
–P00.04 (upper limit of running
frequency)
During the load-carrying running, the allowed
min. working frequency is P18.11.
40.00Hz
○
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