INVT Goodrive300-01A Series, Руководство по эксплуатации

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Goodrive300-01A series VFD for air compressor Fault information and troubleshooting
-94-
Fault
code
Fault type Possible cause Solution

Increase the set value of
P21.03 properly to lower
down the sensitivity during
determining imbalance
degree.
OLF
[40] Current
overload of
power-frequency fan

Rated fan current is set
improperly.

Fan power is too small.

Fan stalls.

Check whether the set
value of P21.00 is the same
with the rated current of the
fan nameplate. whether the
current transformation ratio
P21.01 is the same with
current transformer
nameplate.

Actually detected fan
current is too large, it is
recommended to increase
the power.

Check whether the fan
stalls.
ENC1O [41] Encoder offline

Encoder line sequence
error.

Encoder damaged.

Check encoder wiring.

Check whether the pulse
number setting of P20.01
encoder is set correctly.

Replace the encoder.
ENC1D
[42] Encoder
reversal

Encoder speed signal is
contrary to the motor
running direction.

Reset P20.02 encoder
direction.
ENC1Z
[43] Encoder Z pulse
offline

Z signal wire disconnected.

Check the wiring of Z signal
wire.
L-AUP
[44] Auxiliary
pressure too low

Auxiliary pressure is too
low at start-up.

Check whether P15.06 and
P15.07 are set properly.
HAnd
[45] Dynamic
handshake failure

Handshake process
timeout.

Check whether the
handshake between the
Plot controller and VFD is
performed according to the
handshake protocol.

Check whether P15.10 is
set properly.