INVT Goodrive300-21 Series Operation Manual page 48

Goodrive300-21 integrated machine for air compressor
Function
Name
code
Upper limit of pressure
P18.04
sensor P1
P18.05 Unloading pressure
P18.06 Loading pressure
P18.07 Setting pressure
Starting temperature
P18.08
of the fan
Detailed instruction
1: head temperature PT2, auxiliary temperature
PT1
0.00–20.00 Mpa
It is related to actual range of pressure sensor.
The voltage corresponds to P18.04 is P05.34
Note: This value stays in current set value during
restoring to factory value.
In automatic loading/unloading mode, when air
compressor control is valid and air supply of the
compressor becomes normal after it starts, if
exhaust pressure is detected to be above
P18.05, automatic unloading will be applied. If
sleep function is valid (P18.01=1), the inverter
enters sleep state; when exhaust pressure is
detected to be below P18.06, automatic loading
will be applied. P18.07 is used to set the air
supply pressure when air compressor operation
is stable. During loading operation, the rotation
speed of the master is controlled by pressure
PID. The system keeps exhaust pressure
constant by adjusting the rotation speed of the
master. Refer to section 5.2 for process logic of
pressure control.
Setting range: 0.00–P18.04
When the head temperature exceeds P18.08, the
fan starts.
When the head temperature is below P18.09, the
fan stops.
P18.10 is used to set the target head
temperature during stable running of the air
compressor. The rotation speed of fan is
controlled by constant temperature PID
(P18.42=0). Constant temperature control is
realized by PID calculation based on P18.10 and
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45
Function instruction
Default
Modify
value
1.60Mp
◎
a
0.80Mp
○
a
0.60Mp
○
a
0.70Mp
○
a
○
75℃