5.Description of Function Codes
EM12 User's Manual
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It is applicable to scenarios where complete auto-tuning cannot be performed because the asynchronous motor
cannot be disconnected from the load.
Before performing static auto-tuning, properly set the motor type and motor nameplate parameters of d0-00 ~
d0-04 firstly. The frequency inverter will obtain parameters of d0-05 ~ d0-07 by static auto-tuning.
Action guide: Set this parameter to 1, and press
RUN
key. Then, the frequency inverter starts static auto-tuning.
2: Asynchronous motor complete auto-tuning
To perform this type of auto-tuning, ensure that the motor is disconnected from the load. During the process of
complete auto-tuning, the frequency inverter performs static auto-tuning first and then accelerates to 80% of the
rated motor frequency within the acceleration time set in b0-21. The frequency inverter keeps running for a certain
period and then decelerates to stop with deceleration time set in b0-22.
Before performing complete auto-tuning, properly set the motor type, motor nameplate parameters of b0-00 and
d0-00~ d0-04, "Encoder type" (d0-20) and "Encoder pulses per revolution" (d0-19) first.
The frequency inverter will obtain motor parameters of d0-05 ~ d0-09, "A/B phase sequence of ABZ incremental
encoder" (d0-21) and vector control current loop PI parameters of d1-10 ~ d1-13 by complete auto-tuning.
Action guide: Set this parameter to 2, and press
RUN
key. Then, the frequency inverter starts complete auto-
tuning.
11: Synchronous motor with-load auto-tuning
It is applicable to site where the synchronous motor cannot be disconnected from the load. During with-load
auto-tuning, the motor rotates at the speed of 10 RPM.
Before performing with-load auto-tuning, properly set the motor type and motor nameplate parameters of b0-00
and d0-00 ~ d0-04 first.
By with-load auto-tuning, the frequency inverter obtains the initial position angle of the synchronous motor,
which is a necessary prerequisite of the motor's normal running. Before the first use of the synchronous motor
after installation, motor auto-tuning must be performed.
Action guide: Set this parameter to 11, and press
RUN
key. Then, the frequency inverter starts with-load
auto-tuning.
12: Synchronous motor no-load auto-tuning
If the synchronous motor can be disconnected from the load, no-load auto-tuning is recommended, which will
achieve better running performance compared with with-load auto-tuning.
During the process of no-load auto-tuning, the frequency inverter performs with-load auto-tuning firstly and then
accelerates to 80% of the rated motor frequency with the acceleration time set in b0-21. The frequency inverter
keeps running for a certain period and then decelerates to stop with the deceleration time set in b0-22.
Before performing no-load auto-tuning, properly set the motor type, motor nameplate parameters of b0-00 and
d0-00 ~ d0-04, "Encoder type" (d0-20) and "Encoder pulses per revolution" (d0-19) and "Number of pole pairs of
resolver" (d0-28) first.
The frequency inverter will obtain motor parameters of d0-15 ~ d0-18, encoder related parameters of d0-21 ~
d0-24 and vector control current loop PI parameters of d1-10 ~ d1-13 by no-load auto-tuning.
Action guide: Set this parameter to 12, and press
RUN key
. Then, the frequency inverter starts no-load
auto-tuning.
Note:
Motor auto-tuning can be performed only in operation panel mode.
5.20 Group d1: Motor 1 vector control parameters
The Group d1 function codes are only valid for motor 1 vector control. It is invalid for motor 2 parameters or
motor 1 V/F control.
Summary of Contents for EM12 Series
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