5 Introduction of operation and running SV800/SV800A User Manual
74
The detected data in DC mode self-learning as shown in
Table 5-4
:
Table 5-4 DC mode self-learning detected data
No.
Parameter name
Content and monitoring authority
Unit
b1-08
Primary side resistance of first motor
Depends on motor type
m Ω
Static time compensation constant
Visible after authorized (usually no need to monitor)
Nonlinear parameters of frequency
inverter
Visible after authorized (usually no need to monitor)
Under vector control mode, since full-mode self-learning cannot be performed, it is also
necessary to confirm the motor electrical parameters. In general, the motor parameters can be
entered to b1-08 to b1-14 manually according to motor design manual or selected same type
motor parameters and upload and download to the main control board For more details, please
refer to the chapter "
5.1. 3.1 Induction Motor Self-Learning Mode and procedure
".
Note: During DC self-learning , there is voltage in the motor, especially when the cable between
the motor and the frequency inverter is long. So please deal with the grounding and insulation
of the motor well and don’t touch the motor to avoid electric shock. What’s more, when the
motor is connected with heavy load or mechanical brake, the motor would not shake or rotate at
low speed forward and reverse. It may shake or rotate at low speed forward and reverse when
the load is light but it would not influence the correctness of the detected self-learning data.
5.3.4
Instructions of induction motor
Full-mode self-learning
Induction motor full-mode self-learning includes motor rotation self-learning, so please remove
the load or mechanical brake before start self-learning. If the motor connected with light load or
gearbox and the like, the full-mode self-learning can not be finished normally. Even the
self-learning finished normally, the detected motor parameters may be inaccurate and it will
affect the accuracy of motor speed control and torque control accuracy. Therefore, please
remove the load or reduction gear as far as possible when perform full-mode self-learning.
Please inquiry to manufacturer for supporting and solution if the working condition of the motor
site is not allowed to remove the load or the mechanical brake. If the light load or the reduction
gear can not be removed during the full-mode self-learning process, it is necessary to consider
whether the reduction of the control accuracy fulfill the requirements of the motor driving
working condition. For more details, please refer to the chapter "
5.3.1 Introduction of
induction motor self-learning mode and procedure
".
If select V/F control in the self-learning preparation, the direct current mode self-learning will
be performed even full-mode self-learning selected. For more details, please refer to the chapter
"
5.3.3 Introduction of induction motor DC mode self-learning
".
Full-mode self-learning mainly detects all parameters of motor control from b1-08 to b1-16,
frequency inverter non-linear parameters, etc. The procedure of full-mode self-learning as
shown in
table 5-5
:
