IMO HD2-3.7A-43 - 7.6.7 Motor stalls during ACC

HD2 Series Inverter Troubleshooting
-284-
Fault
code
Fault type
Possible cause
Corrective measures
fault
Exception occurred to t
temperature detection
Exception occurred to
resistor.
Long-time overload running
or exception occurred
(terminal function 57);
Check whether temperature
sensor is proper.
Check the motor and perform
maintenance on the motor
STO
[40] Safe torque off
Safe torque off function is
enabled by external forces
/
STL1
[41] Exception
occurred to safe
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 H1
Check whether terminal wiring
of STO is proper and firm
enough.
Check whether external switch
of STO can work properly.
Replace the control board
STL2
[42] Exception
occurred to channel
H2 safe circuit
The wiring of STO is
improper.
Fault occurred to external
switch of STO.
Hardware fault occurred to
safety circuit of channel H2
Check whether terminal wiring
of STO is proper and firm
enough.
Check whether external switch
of STO can work properly.
Replace the control board
STL3
[43] Exception
occurred to channel
H1 and channel H2
Hardware fault occurred to
STO circuit
Replace the control board
CrCE
[44] Safety code
FLASH CRC check
fault
Control board is faulty
Replace the control board
E-Err
[55] Repetitive
expansion card type
The two inserted expansion
cards are of the same type
You should not insert two cards
with the same type; check the
type of expansion card, and
remove one card after power
down
ENCUV
[56] Encoder UVW
loss fault
No electric level variation
occurred to UVW signal
Check the wiring of UVW.
Encoder is damaged
F1-Er
[60] Failed to identify
the expansion card
in card slot 1
There is data transmission in
interfaces of card slot 1,
however, it cannot read the
card type
Confirm whether the expansion
card inserted can be
supported.
Stabilize the expansion card
interfaces after power down
and confirm whether fault still