INVT GD300-01A, Operation Manual

Page: 84 / 187

Goodrive300-01A series VFD for air compressor Function description
-78-
Function
code
Name Description Default Modify
the air compressor loads/unloads
automatically after starting.
P18.03
Temperature
sensor channel
0: Machine head temperature PT 1, auxiliary
temperature PT2
1: Machine head temperature PT 2, auxiliary
temperature PT1
2: Both of temperature PT1 and PT2 are
displayed (valid only when P18.00=0)
1
◎
P18.04
Upper limit of
pressure sensor
P1
0.00
–20.00 Mpa
Related to the actual range of pressure
sensor, the corresponding voltage of P18.04
is P05.34 .
Note: When restoring to default value, this
value stays in currently set value.
1.60Mpa
◎
P18.05
Unloading
pressure
Under automatic loading/unloading mode,
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
0.80Mpa
○
P18.06 Loading pressure 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
75
℃ ○
P18.09
Stopping
temperature of the
fan
65
℃ ○