User Manual
EM303B General Purpose Inverter
93
F1-12
Stator& Rotor Leakage
Inductance Ls
0.1~3000.0
mH
XXXX
〇
F1-13
Stator& Rotor Mutual
Inductance Lm
0.1~3000.0
mH
XXXX
〇
F1-08
～
F1-13
are motor parameters, please autotune motor parameter to obtain the above
parameters. (F1-09 can be autotuned, but cannot be edited through keypad or
communication.)
Before autotuning motor parameter, inverter will set the nameplate parameters (set by
F1-00
～
F1-07) as the standard motor parameters automatically.
The T Equivalent Model of motor is as shown in Figure7-7.
U1
I1
I2
I0
Lm
R1
L1-Lm
R2
L2-Lm
(1-s)/s*R2
Figure 7-7 T Equivalent Model of Induction Motor
R1, L1, R2, L2, Lm, and I0 in Figure 7-7 refers to stator resistance, stator inductance, rotor
resistance, rotor inductance, stator and rotor mutual inductance, and idling excitation current
respectively.
No.
Function
Range
Unit
Default Type
F1-15
Autotuning Parameters
0: No autotuning
1: Stationary autotuning
(R
1
,R
2
,Ls,Lm,I
0
)
2: Rotational autotuning
(R
1
,R
2
,Ls,Lm,I
0
)
0
〇
F1-15=0
No autotuning
F1-15=1
Motor remains motionless in the process of autotuning parameters F1-07 and
F1-10
～
F1-14.
F1-15=2
Motor is rotating in the process of autotuning parameters F1-07 and F1-10
～
F1-14.
After parameters autotuning completed, F1-15=0 will be set automatically.
When slip compensation is enabled, autotune motor parameter first, so that the motor will
obtain the optimum operation performance.
Parameter autotuning is only enabled when F0-04=0.
EM303B supports ModBus protocol, RTU format, and single-master and multi-slave
communication network with RS485 bus.
No.
Function
Range
Unit
Default Type
F1-16
Inverter Address
1～
247,
0: Broadcasting Address
1
〇
