INVT Goodrive350-19 Series Operation Manual page 397

Goodrive350-19 series VFD
Fault
Fault type
code
OL1 Motor overload
OL2 VFD overload
Phase loss on input
SPI
Phase loss on
SPO
output side
Overheat of rectifier
OH1
Overheat of inverter
OH2
EF External fault
485 communication
CE
Grid voltage is too low;
Rated motor current is set
improperly;
Motor stall or load jumps
violently
Acceleration is too fast;
The motor in rotating is
restarted;
Grid voltage is too low;
Load is too large;
Power is too small;
Phase loss or violent
fluctuation occurred to R, S
side
and T input
Phase loss occurred to U, V,
W output (or the three
phases of motor is
asymmetrical)
Air duct is blocked or fan is
module damaged;
Ambient temperature is too
high;
module
Long-time overload running
SI external fault input
terminal acts
Baud rate is set improperly;
Communication line fault;
Communication address
fault
error;
Communication suffers from
Possible cause
- 390 -
Troubleshooting
Corrective measure
Check grid voltage;
Reset rated motor current;
Check the load and adjust
torque boost
Increase acceleration time;
Avoid restart after stop;
Check grid voltage;
Select the VFD with larger
power;
Select proper motor
Check the input power;
Check installation wiring
Check the output wiring;
Check the motor and cable
Ventilate the air duct or replace
the fan;
Lower the ambient temperature
Check external device input
Set proper baud rate;
Check the wiring of
communication interfaces;
Set proper communication
address;