11. Troubleshooting Tips
The
motor
will
not run.
The inverter
outputs U,V
and W are
not supplying
voltage.
Inverter
outputs U,V,
W are supply-
ing voltage.
Symptom/condition
Probable Cause
Countermeasure
Is the frequency command
source A01 parameter setting
correct?
Is the Run command source
A02 parameter setting
correct?
Is power being supplied to
terminals R, S and T ? If
so, the power lamp should
be on.
Is there an error code
displayed?
E
Make sure the parameter
A01setting correct?
Make sure the parameter
A02setting correct?
Check terminals R, S and
T then U, V, and W
Turn on the power supply
or check fuses.
Are the signals to the intelli-
gent input terminals correct?
Is the Run Command active?
Is the[FW] terminal (or [RV]
connected to CM1(via switch,
etc.)
Has the frequency setting
for F01 been set greater than
zero?
Are the control circuit term-
inals H, O, and L connected
to the potentiometer?
Is the motor load too heavy?
Is the motor locked?
Reduce load, and test the
motor independently.
Is the RS(reset) function
or FRS(free-run stop)
function on?
Turn off the command(s)
Set the parameter for F01
to a safe, non-zero value.
If the potentiometer is the
frequency setting surce,
verify voltage at"O"
0V
Verify the terminal functions
for C01-C06 are correct.
Turn on Run Command
Supply 24V to [FW] or [RV]
terminal, if configured.
(Terminal mode selection)
Press the Func key and
determine the error type.
Then clear the error(Reset).
N100
INSTRUCTION MANUAL
plus