Operation
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5.2.4 Fault reset
If the inverter has fault, it will prompt the related fault information. User can use
STOP/RST or according terminals determined by P5 Group to reset the fault. After fault
reset, the inverter is at stand-by state. If user does not reset the inverter when it is at fault
state, the inverter will be at operation protection state, and can not run.
5.2.5 Motor parameter autotune
If “Sensorless Vector Control” or “Vector Control with PG” mode is chosen, motor
nameplate parameters must be input correctly as the autotuning is based on it. The
performance of vector control depends on the parameters of motor strongly, so to
achieve excellent performance, firstly must obtain the parameter of motor exactly.
The procedure of motor parameter autotuning is as follows:
Firstly, choose keypad command as the run command source (P0.01).
And then input following parameters according to the actual motor parameters:
P2.01: motor rated frequency;
P2.02: motor rated speed;
P2.03: motor rated voltage;
P2.04: motor rated current
P2.05: motor rated power.
Notice: the motor should be uncoupled with its load; otherwise, the motor
parameters obtained by autotuning may be not correct.
Set P0.17 to be 1, and for the detail process of motor parameter autotuning, please refer
to the description of Function Code P0.17. And then press RUN on the keypad panel,
the inverter will automatically calculate following parameter of the motor:
P2.06: motor stator resistance;
P2.07: motor rotor resistance;
P2.08: motor stator and rotor inductance;
P2.09: motor stator and rotor mutual inductance;
P2.10: motor current without load;
then motor autotuning is finished.
5.2.6 Password setting
CHV series inverter offers user’s password protection function. When P7.00 is set to be
nonzero, it will be the user’s password, and After exiting function code edit mode, it will
become effective after 1 minute. If pressing the PRG/ESC again to try to access the
function code edit mode, “-----”will be displayed, and the operator must input correct
user’s password, otherwise will be unable to access it.
If it is necessary to cancel the password protection function, just set P7.00 to be zero.
Notice: Password is not effective for parameters in shortcut menu
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