INVT Goodrive300-01A-RT Series User Manual

Goodrive300-01A-RT series integrated machine Fault handling and product maintenance
-92-
Fault
code
Fault type
Possible cause
Solution
ETH2
To-ground
short-circuit fault
2
faulty.
• Actual motor power setup
differs sharply from the VFD
power.
• Replace the hall.
• Replace main control
board/drive board.
• Reset correct motor parameters.
dEu
Speed deviation
fault
Load is too heavy or stall.
• Check the load and ensure it is
normal, increase the detection
time.
• Check whether control
parameters are proper.
STo
Mal-adjustment
fault
• Control parameters of
synchronous motor are set
improperly.
• Autotuning parameters are
inaccurate.
• The VFD is not connected to
the motor.
• Check the load and ensure the
load is normal.
• Check whether control
parameters are set correctly.
• Increase maladjustment
detection time.
LL
Electronic
underload fault
The VFD reports underload
pre-alarm according to the set
value.
Detect the load and underload
pre-alarm threshold.
PSF
Phase sequence
fault
The phase sequence on power
input side is negative.
Swop any two of the power input
cables.
OLF
Power-frequency
fan current
overload
• 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, and 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.
SPOF
3PH current
imbalance of the
power-frequency
fan
• Phase loss occurs to the
connection of three phases of
the fan.
• Stator winding of three
phases of the fan is
• Check whether the fan wiring is
disconnected or poorly
contacted.
• Measure whether the
impedance of the three-phase

INVT Goodrive300-01A-RT Series Specifications

General

Brand	INVT
Model	Goodrive300-01A-RT Series
Category	Inverter
Language	English