INVT Goodrive350-19 Series User Manual

Goodrive350-19 series VFD Troubleshooting
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Fault
code
Fault type
Possible cause
Corrective measure
faulty;
Actual motor power setup
deviates sharply from the
VFD power
Replace the hall component;
Replace the main control
board;
Reset the motor parameters
properly
ETH2
To-ground short
circuit fault 1
VFD output is short
connected to ground;
Current detection circuit is
faulty;
Actual motor power setup
deviates sharply from the
VFD power
Check whether motor wiring is
proper;
Replace the hall component;
Replace the main control
board;
Reset the motor parameters
properly
dEu
Speed deviation
fault
Load is too heavy, or stall
occurred
Check the load to ensure it is
proper, increase the detection
time;
Check whether control
parameters are set properly
STo
Maladjustment fault
Control parameters of
synchronous motor is set
improperly;
The parameter gained from
autotuning is inaccurate;
The VFD is not connected to
motor
Check the load to ensure it is
proper,
Check whether load is proper;
Check whether control
parameters are set correctly;
Increase maladjustment
detection time
LL
Electronic underload
fault
The VFD performs
underload pre-alarm based
on the set value
Check the load and overload
pre-alarm threshold
ENC1O
Encoder offline fault
Encoder line sequence is
wrong, or signal wires are
poorly connected
Check the encoder wiring

INVT Goodrive350-19 Series Specifications

General

Brand	INVT
Model	Goodrive350-19 Series
Category	DC Drives
Language	English