INVT GD270-030-4 User Manual

Goodrive270 series VFD for fan and pump Troubleshooting
-242-
Fault
code
Fault type Possible cause Solution
Power is too small.
SPI Input phase loss
Phase loss or violent
fluctuation occurred on
input R, S, T.
Check the input power.
Check the installation wiring.
SPO
Phase loss on o
utput
side
Phase loss occurred to U,
V, W output (or the three
phases of motor is
asymmetrical).
Check the output wiring.
Check the motor and cables.
OH1
Rectifier module
overheating
Air duct blocked or fan
damaged.
Ambient temperature too
high.
Long-time overload
running.
Ventilate the air duct or replace
the fan.
Lower the ambient temperature.
OH2
Inverter module
overheat
Fault
EF External fault
SI external faulty input
terminal action.
Check external device input.
CE
RS485
communication fault
Baud rate set improperly.
Communication line fault.
Incorrect communication
address.
Communication suffers
from strong interference.
Set a proper baud rate.
Check the wiring of
communication interfaces.
Set the communication address
correctly.
Change or replace the wire or
improve the anti-interference
capability.
ItE
Current detection
fault
Poor contact of the
connector of control
board.
Hall component
damaged.
Amplification circuit
exception.
Check the connector and re-plug.
Replace the hall component.
Replace the main control board.
tE
Motor autotuning
fault
Motor capacity does not
match with the VFD
capacity. This fault may
occur if the capacity
difference exceeds five
power classes.
Change the VFD model, or adopt
V/F mode for control.
Set the proper motor type and
nameplate parameters.
Empty the motor load and carry
out autotuning again.

INVT GD270-030-4 Specifications

General

Brand	INVT
Model	GD270-030-4
Category	Water Pump
Language	English