A1-User’s Manual
182
9.2.4
ETH (Motor Overload)
1)
Diagnostic flowchart
Output Current is more
than Motor rated
Current?
ETH Occurred at
VFD Start
END
YES
NO
ETH
Measure VFD
Output
Current
Replace
POWER PCB
or SMPS PCB
Reduce
98.08
by 0.1 MIN 0.
Make decrease the
load or increase motor
and inverter capacity.
NO
YES
Read current value of trip history
(03.01~03.72)
If using oscilloscope or clamp(hook) meter, read RMS current value
Increase
98.08
by 0.1
MAX 10.
below 120% of
Motor rated
Current
YES
Set to
100~120 at
32.01
NO
Is the no-load
condition?
NO
ETH Occurred at
VFD Acceleration
YES
Increase
23.04
by
10sec MAX
300
NO
YES