5 Introduction of operation and running SV800/SV800A User Manual
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When abnormality occurs in the self-learning process of the induction motor, the processing methods are shown in
Tables 5-12
:
Table 5-12 Self-Learning Troubleshooting
LED Display
Status
LCD Display
Status
Treatment method
5EtE
SEtE
Indicates that parameter setting abnormal, generally caused by incorrect setting of
motor nameplate parameter and motor running speed range parameter or the
switching parameters setting of the first motor and second motor parameter. It may
also caused by without second motor nameplate parameters but switch to second
motor for self-learning. Therefore, please refer to "5.3.2 Preparation of the
induction motor before self-learning" and "5.3.5 Second induction motor
self-learning instructions" and reset the parameters b1-00 to b1-07, b2-00 to b2-07,
E0-02, E0-03;
tUnEr
tUnEr
Indicates that self-learning data abnormal, self-learning result abnormal, the
self-learning cannot be completed normally and the self-learning process is
actively stopped. At this time, it is necessary to analyze the cause of the
self-learning abnormality. Check whether the inverter model and motor nameplate
parameters set correctly or not, whether the wiring between the inverter and the
motor is abnormal, deal with the motor grounding and insulation well or not,
whether the motor mechanical brake is released and the motor load is too large,
whether the motor stator winding resistance is balanced and the motor rotor
conduct bar is abnormal, etc.; Please refer to the chapter “5.3.2 The induction
motor performs the pre-study preparation and the ” and "5.3.5 second induction
motor self-learning instructions" and reset related parameters. If it cannot be
solved, please replace the motor, the inverter or consult the manufacturer.
Note: When failure occurs during self-learning, it cannot be reset by the keyboard. It must be reset by
turning power off and restart whole self-learning process again.
