INVT Goodrive300-01A Series Operation Manual page 36

Goodrive300-01A series VFD for air compressor
4.3 Commissioning guidance for dual-VFD + power-frequency fan scheme
R
S
T
PE
Emergency stop
Motor overtemperature
Aux ilia ry
tem p er ature
PT1 00
O il ga s
tem p er ature
PT1 00
D is c ha rg e
pre s su re
Aux ilia ry
pre s su re
Figure 4-16 Wiring diagram for dual-VFD + power-frequency fan system
Method of application:
Configure the parameters according to section 4.1 "Commissioning instruction for the dual-VFD air
compressor", as shown in the following table. You can realize the dual fan system of main motor
frequency conversion, in which U1, V1, and W1 terminals of GD300-01A-RT VFD can be used to
realize variable-frequency fan output, and U2, V2, W2 terminals can be used to realize power
frequency fan output.
GD300-01A-RT parameter configuration table
Function
code
Speed control
P00.00
Running command
P00.01
channel
A frequency
P00.06
command selection
R S T
Master VF D
GD 300-0 1A
S1
S2 RO2A
S ta r t/s to p s ig n a l
RO2C
S4
S5
RO1A
S o l e n o i d va lv e
RO1C
COM
COM
RO3A
C o o li n g fa n
RO3C
PTA1
A01
A n a l o g o u tp u t
GND
PTB1
PTA2 S3
COM
PTB2
485+
P1+
485-
+24V
P1-
GND
P2+
+24V
P2-
GND
485+
485-
CGND/PE
U V W
M
Main m otor
Parameter
Name
setting
2
mode
1
1
PE
S1
COM
S2
COM
S3
COM
P1-
GND
Fa ult o utpu t
RO1A
RO1C
485+
485-
48 5+
48 5-
HMI
0: SVC mode 0 (applicable to AM, SM)
1: SVC mode 1(applicable to AM)
2: V/F control
Note:
AM: Asynchronous motor;
SM: Synchronous motor;
0: Keypad (LED off)
1: Terminal (LED blinks)
2: Communication (LED on)
1: Set via analog P1-
-31-
Commissioning instruction
R S T
GD300-01A-RT
TA1
R
TC1
Fan power
supply
transformer
U2 V2 W2 U1 V1 W1
M M
Power-frequency Variable-frequency
cooling fan cooling fan
Remarks
Sole no id v alv e c oil