INVT Goodrive350 Series Operation Manual page 294

Goodrive350 series high-performance multifunction VFD
Fault
Fault type
code
STO [40] Safe torque off
[41] Exception
STL1 occurred to safe
circuit of channel H1
[42] Exception
STL2 occurred to channel
H2 safe circuit
[43] Exception
STL3 occurred to channel
H1 and channel H2
[44] Safety code
CrCE FLASH CRC check
[55] Repetitive
E-Err
expansion card type
[56] Encoder UVW
ENCUV
loss fault
[60] Failed to identify
F1-Er the expansion card
in card slot 1
fault Exception occurred to t
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;
Hardware fault occurred to
safety circuit of channel H2
Hardware fault occurred to
STO circuit
Control board is faulty
fault
The two inserted expansion
cards are of the same type
No electric level variation
occurred to UVW signal
There is data transmission in
interfaces of card slot 1,
however, it cannot read the
card type
Possible cause
-285-
Troubleshooting
Corrective measures
(terminal function 57);
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 and
restart it;
Replace the control board
Check whether terminal wiring
of STO is proper and firm
enough;
Check whether external switch
of STO can work properly and
restart it;
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 expansion card, and
remove one card after power
down
Check the wiring of UVW;
Encoder is damaged
Confirm whether the expansion
card inserted can be
supported;
Stabilize the expansion card