Hangzhou IECHO Science & Technology Co., Ltd.
23
55
The offset
self-check circuit
in current
measurement is
too large
Internal fault
Switch twice. If the
fault still exists, send
the inverter for repair.
57
Actual motor
spindle is too high
The actual refractive
index exceeds 10% of
the rated speed. The
motor cannot follow the
normal speed. The
motor is driven
externally
Set the rated speed to
the expected level
When an error message appears, it means that a serious failure has been
encountered and the drive will not be able to operate and must be reset.
Warning
code
Fault
Reason
Solution
2
STO interrupt
STO port open
Check STO port
3
Motor ground
leakage
Short circuit of motor or
power cord
Replace or repair the
motor; Check the power
cord
4
Radiator
temperature
High (inverter)
Inverter overload;
Insufficient cooling
Reduce load
Check the output
current
5
Inverter failure
during self-test
Performance
component failed
Switch twice. If the fault
still exists, send the
inverter for repair.
6
Overcurrent
detection input
Inverter performance
component failure;
motor or power cord
failure
Replace the motor or
cable;Switch twice. If
the fault still exists,
send the inverter for
repair.
7
I²t closed
I²t load is too high, so
Motor is off
Cool down the motor
and reduce the load;
check the parameters
"I²t time" or threshold"
