8-3 Operation and Simple Running
AC10 Inverter
description of function code F132 for changing the displayed parameters.
8.2.6 Switching of the parameters displayed under running status
Under running status, by default five parameters of running status can be switched over
repeatedly and displayed with the keys “M”. These parameters are displayed: output RPM,
output current, output voltage, DC BUS voltage. Please refer to the description of function
code F131 for changing the displayed parameters.
8.2.7 Operation process of measuring motor parameters
The user shall input the parameters accurately as indicated on the nameplate of the motor
prior to selecting operation mode of vector control and auto torque compensation (F137=3) of
V/HZ control mode. Inverter will match standard motor stator resistance parameters according
to the parameters indicated on the nameplate. To achieve better control performance, the user
may start the inverter to measure the motor stator resistance parameters, so as to obtain
accurate parameters of the motor controlled.
The motor parameters can be tuned through function code F800.
For example: If the parameters indicated on the nameplate of the motor controlled are as
follows: numbers of motor poles are 4; rated power is 7.5kW; rated voltage is 400V; rated
current is 15.4A; rated frequency is 50.00HZ; and rated rotary speed is 1440rpm, operation
process of measuring the parameters shall be done as described in the following:
In accordance with the above motor parameters, set the values of F801 to F805 correctly: set
the value of F801 = 7.5, F802 = 400, F803 = 15.4, F804 = 4 and F805 = 1440 respectively.
Note: The motor nameplate may not indicate the number of poles. The motor RPM listed on
the nameplate will be (Synchronous RPM – Slip). The number of motor poles can be
interpolated based on the synchronous motor RPM: 3600 = 60Hz, 2 poles; 3000 = 50Hz, 2
poles; 1800 = 60Hz, 4 poles; 1500 = 50Hz, 4 poles; 1200 = 60Hz, 6 poles; 1000 = 50Hz, 6
poles; etc.
Motor nameplate base speed (F805) = [(Base frequency x 120) / poles] – slip
1. ROTATING AUTOTUNE: In order to ensure dynamic control performance of the inverter,
set F800=1, i.e. select rotating tuning. Make sure that the motor is disconnected from the load.
Press the “I” key on the keypad, and the inverter will display “TEST”, and it will tune the
motor’s parameters of two stages. After that, the motor will accelerate according to the
acceleration time set at F114 and maintain for a certain period. The speed of motor will then
decelerate to 0 according to the time set at F115. After auto-checking is completed, relevant
parameters of the motor will be stored in function codes F806~F809, and F800 will turn to 0
automatically.
2. STATIONARY AUTOTUNE: If it is impossible to disconnect the motor from the load,
select F800＝2, i.e. stationary tuning. Press the “I” key, the inverter will display “TEST”, and it
will tune the motor’s parameters of two stages. The motor’s stator resistance, rotor resistance
and leakage inductance will be stored in F806-F808 automatically, and F800 will turn to 0
automatically. The user may also calculate and input the motor’s mutual inductance value
manually according to actual conditions of the motor.
Note: The preferred method of autotuning is by performing a rotating autotune.
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