INVT Goodrive20-EU VFD Series User Manual

Goodrive20-EU series VFD Fault tracking
108
Fault
code
Fault type
Possible cause
Solutions
OL2
VFD overload
1. Acceleration is too fast
2. Restart the rotating motor
3. Grid voltage is too low.
4. The load is too heavy.
5. The rated power is much
larger than the power actually
needed
1. Increase acceleration time
2. Avoid restarting after
stopping.
3. Check the grid voltage
4. Select an VFD with larger
power.
5. Select a proper motor.
OL3
Electrical
overload
The VFD will report overload
pre-alarm according to the set
value.
Check the load and the
overload pre-alarm point.
SPI
Input phase
loss
Phase loss or fluctuation of
input R, S, T
1. Check input power
2. Check installation wiring
SPO
Output phase
loss
U, V, W phase loss output (or
serious asymmetrical three
phase of the load)
1. Check the output wiring
2. Check the motor and cable
OH1
Rectify
overheat
Air duct is blocked or fan is
damaged;
Ambient temperature is too
high;
The time of overload running is
too long;
Refer to the overcurrent
solution;
Redistribute;
dredge the wind channel or
change the fan;
Lower down the ambient
temperature;
Check and reconnect;
Change the power;
Change the power unit;
Change the main control panel
OH2
IGBT overheat
EF
External fault
SI external fault input terminals
acts
Check the external device input
CE
Communication
error
The baud rate setting is
incorrect;
Fault occurs to the
communication circuit;
The communication address is
wrong;
There is strong interference to
the communication
Set proper baud rate;
Check the wiring of
communication connection
interface;
Set proper communication
address;
Chang or replace the wiring or
improve the anti-interference
capability

INVT Goodrive20-EU VFD Series Specifications

General

Brand	INVT
Model	Goodrive20-EU VFD Series
Category	DC Drives
Language	English