INVT Goodrive300-01A Series Operation Manual page 163

Goodrive300-01A series VFD for air compressor
to GD300-01A control board
Ic
Ib
Ia
Pay attention to the current direction during wiring. P1 and S1 are dotted terminals, so does P2 and
S2, namely the main circuit cable goes in from P1 and out from P2, and the S1 on output side of R/A
phase must be connected to la, and S2 to lc. The S1 on output side of S/B phase must be connected
to lb, and S2 to lc.
Note:
 Open circuit is not allowed on output side;
 Avoid large power and interference during transformer wiring;
 Wiring of the transformer and control board can be carried out only after power off.
C.3 Parameter setup of current transformer of the fan
1. The transformation ratio of the current transformer used by the user must be 1000. For instance, if
the current on input side is 40A, current on output side must be 40mA.
2. After confirming transformer model, input the rated current value of the cooling fan.
S1 S2
P1
P2
Cables on fan side
Cables on fan side
R/A phase S/B phase
current transformer
current transformer
P1
S1 S2
相
P1 R/A
P2
P2
P2
相
S/B
P1
Dotted terminal of current transformer
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Current transformer of the fan
S1
Ia
S2
Ic
Ib
S1