INVT Goodrive350 Series Operation Manual page 252

Goodrive350 series high-performance multifunction VFD
Fault
Fault type
code
STO Safe torque off
Exception occurred
STL1 to safe circuit of
channel H1
Exception occurred
STL2 to channel H2 safe
Exception occurred
STL3 to channel H1 and
channel H2
Safety code FLASH
CrCE
CRC check fault
Repetitive extension
E-Err
card type
Encoder UVW loss
ENCUV
Failed to identify the
F1-Er extension card in
card slot 1
temperature detection
Exception occurred to
resistor;
Long-time overload running
or exception occurred
Safe torque off function is
enabled by external forces
The wiring of STO is
improper;
Fault occurred to external
switch of STO;
Hardware fault occurred to
safety circuit of channel H1
The wiring of STO is
improper;
Fault occurred to external
switch of STO;
circuit
Hardware fault occurred to
safety circuit of channel H2
Hardware fault occurred to
STO circuit
Control board is faulty
The two inserted extension
cards are of the same type
No electric level variation
fault occurred to UVW signal
There is data transmission in
interfaces of card slot 1,
however, it cannot read the
card type
Possible cause
-243-
Troubleshooting
Corrective measures
Check whether temperature
sensor is proper;
Check the motor and perform
maintenance on the motor
/
Check whether terminal wiring
of STO is proper and firm
enough;
Check whether external switch
of STO can work properly;
Replace the control board
Check whether terminal wiring
of STO is proper and firm
enough;
Check whether external switch
of STO can work properly;
Replace the control board
Replace the control board
Replace the control board
You should not insert two cards
with the same type; check the
type of extension card, and
remove one card after power
down
Check the wiring of UVW;
Encoder is damaged
Confirm whether the extension
card inserted can be
supported;
Stabilize the extension card
interfaces after power down,
and confirm whether fault still
occurs at next power-on;
Check whether the insertion