
54
(3). Disturbing motor operation
Is there
any excess vibration
at transmission parts
like gears?
Increase or decrease
acceleration /
deceleration time
Is there any loading
variation condition?
YES
Reduce load Increase
E2 and motor capacity
Reduce loading
variation or install
fly wheel
Improve mechanical
system
NO
YES
YES
E2 malfunction
During acceleration or
deceleration ?
NO
Is the
voltage level
between T1-T2, T2-T3, and
T3-T1 normal?
Is the
acceleration/
deceleration time setting
appropriate?
E2 malfunction
NO
NO
Not
appropriate
Appropriate
YES (The differences between different wires are within
±
3%)